# Li-ion vs LiPo vs LiFePO4 vs NiMH for Hardware Design Choose batteries for wearables, IoT, solar sensors, robots and AA products. Compare cell limits, charging, protection and PCB trade-offs. Written by [Jharwin Barrozo](https://flux.seobdtools.com/jharwinbarrozo) Published Oct 2026 - 16 min read ![Li-ion vs LiPo vs LiFePO4 vs NiMH for Hardware Design](https://flux.seobdtools.com/p/assets/blogs/li-ion-vs-lipo-vs-lifepo4-vs-nimh/main.webp) ## Quick answer Choose a pouch LiPo for a thin wearable, or cylindrical Li-ion for a handheld IoT device with room for a supported battery pack. For an outdoor solar sensor that recharges frequently, consider LiFePO4 because of its cycling characteristics, provided the design includes temperature-qualified charging and a suitable regulator. For a high-current robot or tool, choose a documented power cell, such as a high-drain cylindrical Li-ion cell, and a battery pack designed for the required current. NiMH is a practical choice when compatibility with replaceable AA batteries is mandatory. Below freezing, qualify discharge separately from charging. A cell's ability to discharge in cold conditions does not establish that charging below freezing is permitted. **The following battery categories describe different aspects of cell construction:** - **Li-ion** refers to rechargeable lithium-ion chemistry, commonly supplied in cylindrical cells such as 18650 and 21700. - **LiPo**, or lithium-polymer, commonly describes lithium-ion cells supplied in flexible pouches. The pouch format does not, by itself, identify a particular cathode chemistry. - **LiFePO4**, or lithium iron phosphate, is a specific lithium-ion cathode chemistry with a different voltage profile and charging requirements from conventional 4.2 V lithium-ion cells. - **NiMH**, or nickel-metal hydride, is a separate rechargeable battery chemistry commonly available in AA and AAA formats. Cell chemistry determines much of the electrical behavior, while packaging affects mechanical integration. Engineers should consider both before selecting a battery. ## Comparison table: exact examples, not universal ranges The comparison uses one example cell from each category: Molicel/E-One Moli Energy INR-18650-P28A, EEMB LP503450, Drypower IFR18650 E1600, and FDK HR-3UTG. **The values describe the selected cells rather than universal limits for each battery category.** The P28A datasheet identifies the cell as lithium-ion but does not explicitly confirm an NMC or NCA cathode. Fields without confirmed numerical specifications are marked as omitted rather than filled with chemistry-wide estimates. *Table 1. Specifications of four example rechargeable battery cells* | Specification | Cylindrical Li-ion: P28A | Pouch LiPo: LP503450 | LiFePO4: E1600 | NiMH: HR-3UTG | Why it matters | | --- | --- | --- | --- | --- | --- | | **Nominal voltage** | 3.6 V | 3.7 V | 3.2 V | 1.2 V | Determines the regulator's required input range. | | **Full-charge target** | 4.2 V | Omitted | 3.65 V | No fixed lithium-style CV target | The charger must match the selected cell. | | **Discharge endpoint** | 2.5 V in cited tests | Omitted | 2.0 V | 1.0 V in capacity testing | A test endpoint is not necessarily the product's shutdown threshold. | | **Gravimetric energy density** | 219 Wh/kg, cell figure | Omitted | Omitted | Omitted | Pack hardware reduces energy density compared with the cell alone. | | **Cycle life and conditions** | Curves: charge at 2.8 A CC/CV; discharge at 10/20 A to 2.5 V at 23°C, with specified rests | Test values omitted | Manufacturer specifies ≥2,000 cycles to ≥80% capacity under its stated conditions | Guaranteed count not established | Compare equivalent test conditions. | | **Maximum continuous C-rate** | Maximum discharge 35 A; separate continuous C-rating not established | Omitted | Maximum continuous discharge current of 4.8 A | Graph current is not a maximum rating | Separate sustained current from pulses. | | **Self-discharge** | Not specified in cited sheet | Retention-test values omitted | Comparison omitted | Comparison omitted | Add board standby consumption separately. | | **Charge temperature** | 0–60°C | Omitted | 0–60°C | 0–40°C for specified fast charging | Use cell temperature limits, not charger-IC junction limits. | | **Discharge temperature** | −40–60°C | Omitted | −20–60°C | Recommended 0–50°C | Cold discharge does not authorize cold charging. | **C-rate expresses charge or discharge current relative to the cell's rated capacity.** A plotted discharge current does not necessarily establish the maximum continuous C-rate. Cylindrical Li-ion cells are also available in the **21700** format. Engineers should evaluate the specifications, holders, tabs, and enclosure requirements of each selected cell rather than transferring an 18650 rating to a larger format. Neither format alone determines cathode chemistry or guaranteed power capability. ## Choose cylindrical Li-ion if... - A handheld IoT terminal accommodates a cylindrical pack and needs serviceable battery support. - A portable instrument prioritizes stored energy over minimum thickness. - A robot or tool has a qualified power pack with documented handling of motor stall current. - A field logger benefits from a replaceable pack and traceable sourcing. Obtain an explicit NMC or NCA declaration for procurement if the cathode chemistry matters to the design. Do not infer the cathode material from a model prefix. ## Choose pouch LiPo if... Pouch LiPo cells are useful when battery thickness and enclosure geometry limit the available space. The flexible outer package also requires attention to mechanical protection. - A wearable needs a flat battery beside a rigid PCB. - A tracker has an enclosure shaped around a custom pouch. - A wireless accessory uses a protected factory pack with a temperature-monitoring lead. - A compact robot has a verified high-current pouch with allowances for swelling and strain on its tabs. A thin pouch intended for low-current electronics is not interchangeable with a high-current radio-control (RC) battery pack. Specify the actual discharge current and mechanical requirements. ## Choose LiFePO4 if... LiFePO4 cells have a different voltage profile from conventional 4.2 V lithium-ion cells and are often considered for applications that require frequent charge and discharge cycles. - A solar sensor expects frequent recharge cycles and has adequate enclosure space. - A remote instrument supports a converter matched to the LiFePO4 discharge-voltage profile. - A reusable industrial accessory prioritizes cycling performance over minimum mass. - A robot has a purpose-designed LiFePO4 pack with monitoring, balancing, and fault isolation. The lower LiFePO4 voltage profile affects charger selection and the voltage regulator supplying the electronics. LiFePO4 cells still require suitable protection against electrical and temperature faults. ## Choose NiMH if... NiMH cells are useful in products designed around replaceable AA batteries, including products that also accept primary, nonrechargeable AA cells. - A product must also run from ordinary AA cells in a replaceable holder. - A remote control should accept rechargeable spare cells. - A service instrument uses an approved external NiMH charging procedure. - An educational product benefits from accessible batteries and mechanical polarity control. If the holder accepts both rechargeable NiMH and disposable primary AA cells, the charging circuit must prevent attempts to recharge primary batteries. The circuit must also accommodate the voltage range and reverse-polarity risks of every permitted cell type. ## Design considerations: schematic, BOM and PCB ### Charger selection, profile and current Conventional lithium-ion cells commonly use **constant-current/constant-voltage (CC/CV) charging**. The charger first controls the charging current and then holds the specified voltage as current decreases near full charge. Microchip **MCP73831T-2ATI/OT** is the nominal **4.20 V** ordering option, suitable only when the selected cell permits that charging voltage. Higher-voltage Li-ion variants require their own approved charger settings. LiFePO4 also commonly uses CC/CV charging, but at a lower manufacturer-specified voltage. TI **BQ24650RVAR** supports LiFePO4 charging through an adjustable voltage-feedback divider. The manufacturer's application note illustrates a particular cell configuration, so the selected E1600 cell still requires its own charging settings. **NiMH charging uses a different method.** A NiMH charger controls current and typically monitors the battery for a small voltage decrease near full charge, called *negative delta voltage* (−ΔV). Temperature monitoring and a timeout provide additional termination safeguards. The TI **BQ2002SNTR** is a NiMH charging-controller example. TI associates the part with the BQ2002/F datasheet, although the exact reference circuit and pin connections still need verification for the intended implementation. **TI currently lists BQ2002SNTR as a last-time-buy part, so a new design should also consider an available alternative.** Set charge current according to the cell's permitted charging rate, the available power supply, and thermal limits. MCP73831 uses the programming relationship: **IREG (mA) = 1000 / RPROG (kΩ)** The charger's maximum current capability does not establish the current permitted by the battery cell. ### Load sharing and termination **Load sharing determines how an external power supply supports the system while charging the battery.** If a load is connected directly to a basic charger's battery output, the charger's current measurement may include both battery-charging current and system current. The additional load current can interfere with charge termination. The MCP73831 introduced above has no separate system-power output or external [thermistor](https://flux.seobdtools.com/p/blog/rtd-vs-thermocouple-vs-thermistor) input. Disable the load during charging or use an external power-path circuit designed for simultaneous operation and charging. For a charger with integrated power-path control, TI **BQ24075RGTT** provides a separate OUT connection for the system and BAT connection for the battery. Another option is TI **BQ25895RTWT**, a switching charger with programmable regulation from **3.840 V to 4.608 V in 16 mV steps**. The programmed voltage and its tolerance must match the selected cell. **When charging from USB-C, the USB supply negotiation should also be considered.** Flux's [guide to Programmable Power Supply (PPS) charging](https://flux.seobdtools.com/p/blog/understanding-pps-fast-charging-what-it-is-and-how-it-works) explains how USB Power Delivery can negotiate the voltage and current supplied by an upstream adapter. The battery-charger ICs discussed here should not be assumed to perform USB-PD PPS negotiation without an appropriate USB controller. ### Protection and return nodes A battery charger controls the normal charging process, but the pack also needs protection against electrical faults. Depending on the cell and pack configuration, protection must address overcharge, overdischarge, excessive current, and short circuits. Match the protection thresholds, tolerances, and delays to the cell, wiring, contacts, and switching transistors. The system should shut down normally before the battery reaches its emergency protection threshold, rather than depending on repeated protection trips. For a single-cell lithium-ion protection circuit, TI BQ29700DSER controls two low-side N-channel MOSFETs that interrupt charging or discharging during faults. The VSS pin references the cell's negative terminal, while V− senses the protected pack's negative terminal. DOUT and COUT control the discharge and charge switching devices. **CSD85302L** is a dual-[MOSFET](https://flux.seobdtools.com/p/blog/nmos-vs-pmos) candidate listed in the Flux library, but the exact pairing and connection topology need verification before use. LiFePO4 designs also require protection thresholds appropriate to their lower cell-voltage range. **The distinction between cell negative and protected pack negative matters when the protection circuit disconnects the battery.** Connect the charger and system returns to **protected pack negative**. A USB ground or other system connection wired directly to bare cell negative may bypass the protection switches. A fuel gauge connected on the cell side needs an interface that does not bypass the disconnect. ### NTC placement, regulator and fuel gauge **A negative temperature coefficient (NTC) thermistor changes resistance as temperature changes, allowing the charging circuit to monitor battery temperature.** Thermally couple the NTC to the cell rather than placing it beside a hot charger IC. The BQ24075 TS temperature-sense input supports the specified battery-pack thermistor network. Validate the temperature thresholds, hysteresis, and response to an open or shorted thermistor lead against the cell's approved charging range. **After the battery and charger, the circuit needs a regulator to provide a stable supply voltage to the electronics.** For a **3.3 V** supply rail, a low-dropout (LDO) regulator needs its input voltage to exceed the output by the regulator's specified dropout voltage. As battery voltage falls toward 3.3 V, the regulator may lose the ability to maintain the output. If the battery voltage can fall above and below the required rail, use a **buck-boost converter**, which can step voltage down or up. Check the minimum input voltage under load, startup behavior, and the regulator's own quiescent current. **A fuel gauge estimates the battery's state of charge (SoC), meaning the amount of charge available relative to its capacity.** Voltage-based estimates depend on chemistry, temperature, and load because battery voltage changes under different operating conditions. Another method, *coulomb counting*, measures current flowing into and out of the battery over time. The calculation requires control of measurement offset and an appropriate capacity reference. ADI/Maxim **MAX17048G+T10** uses the ModelGauge algorithm without a current-sense resistor. The device is specified for single-cell Li-ion batteries. For MAX17048, VDD senses battery positive, and CELL is not internally connected. ### Connectors, copper and physical placement **Use a keyed battery connector to reduce the risk of reverse insertion, and verify the polarity supplied by the battery manufacturer.** Identical connector housings do not guarantee identical wire assignments. Provide strain relief and coordinate fuse selection with the expected fault current and the pack's protection thresholds. The copper traces, vias, contacts, and current-sense resistors must also carry the expected current without excessive heating or voltage drop. **Thermal-relief spokes, which connect pads to copper planes through narrow sections, can restrict current flow in high-current paths.** Review the actual copper geometry rather than applying a single trace-width rule. Keep switching-current loops compact. Route sensitive current-sense connections separately from the main current path, using **Kelvin connections** to avoid including voltage drops across high-current copper in the measurement. Cylindrical cells need holders or mechanical supports that do not stress welded tabs or abrade insulation. Pouch cells need manufacturer-approved clearance for expansion and protection from screws, sharp PCB edges, and hot components. Never compress a swollen pouch back into service. ## Safety and cold operation Lithium-ion battery abuse can cause heating, venting, and thermal runaway. Swelling is a reason to isolate the battery and follow the supplier's replacement instructions. LiFePO4 cells also require protection against misuse, and NiMH cells can overheat, vent, or leak. Battery chemistry does not eliminate the need for thermal qualification and electrical fault protection. The P28A datasheet distinguishes charging from discharging by specifying different temperature ranges for each operation. For equipment used below freezing, test voltage sag and usable capacity at the actual discharge current, and inhibit charging outside the approved cell temperature range. The other example cells must also be checked against their specific charging limits. A permissible cold-discharge temperature does not establish permission to charge at the same temperature. ## Four minimal reference-circuit starting points The following examples describe circuit architectures rather than completed, electrically verified bills of materials (BOMs). Start from the relevant manufacturer's application circuit and verify the connections before implementation. Flux's [guide to starting a PCB from a template](https://flux.seobdtools.com/p/blog/why-you-should-start-designing-your-pcb-from-a-template) provides additional guidance on adapting reference schematics. ### Cylindrical Li-ion Use an approved, protected P28A pack with the MCP73831 charging circuit. Connect the pack's positive terminal to the MCP73831 VBAT pin, the regulated charging input to VDD, and VSS to protected pack negative. The **PROG pin** sets the charging current through an external resistor, and **STAT** provides charging-status indication. Include at least **4.7 µF** of bypass capacitance on the input and battery nodes. Disable the system load during charging or add a suitable power-path circuit. The design also needs independent cell-temperature monitoring to inhibit charging outside the approved range. ### Pouch LiPo Use an approved, protected pouch pack with TI BQ24075, **a single-cell charging IC that includes a separate system-power output**. Connect the battery's positive terminal to BAT, the external charging supply to IN, and the system regulator or load to OUT. Return VSS and the thermal pad to protected pack negative. Connect the cell-mounted thermistor to **TS, the temperature-sense input**, using the specified resistor network. Add the required charge-current and input-current programming components, with defined enable states. An optional MAX17048 fuel gauge uses VDD at pack positive, GND at pack negative, and suitable I²C pull-up resistors. Verify the fuel gauge's behavior when the protection circuit disconnects or reconnects the battery. ### LiFePO4 solar Start with TI BQ24650RVAR's switching-charger reference circuit and an approved, protected LiFePO4 pack. **The charger uses a resistor divider connected to its voltage-feedback pin (VFB) to set the final charging voltage.** The relationship is: **VBAT = 2.1 V × (1 + Rtop/Rbottom)** Select Rtop and Rbottom according to the approved charging voltage and include resistor tolerances in the calculation. Connect SRP **and SRN**, the current-sense inputs, across the charging-current shunt resistor using Kelvin connections. Implement the **TS temperature-sense network** and configure **MPPSET**, the input-voltage setting used for solar-panel power-point control, for the selected panel. Include the required external switching components and a defined method for powering the system while the battery charges. ### NiMH AA product Use TI BQ2002SNTR's manufacturer reference circuit, qualified NiMH cells, and a keyed AA holder. The circuit requires battery-voltage sensing, temperature monitoring at the cells, and an external controlled-current charging stage. It must also prevent charging when the holder contains nonrechargeable primary AA batteries. **Detailed connections should follow the exact BQ2002SNTR datasheet and reference circuit rather than an assumed pin assignment.** Because the part is currently listed as last-time-buy, verify availability or select a supported alternative. An approved external NiMH charger is another option when onboard charging is unnecessary. ## Shipping and certification Lithium battery transport testing is addressed by the [UN Manual of Tests and Criteria, eighth revised edition (2023)](https://unece.org/transport/dangerous-goods/rev8-files), subsection 38.3, together with [Amendment 1 (2025)](https://unece.org/sites/default/files/2025-09/ST-SG-AC10-11-Rev8-Amend1e.pdf). A cell test report does not automatically cover every assembled battery pack. For portable battery safety, [IEC 62133-2:2017+AMD1:2021](https://webstore.iec.ch/en/publication/70017) addresses lithium systems. Nickel systems are covered by IEC 62133-1, whose [2026 edition](https://webstore.iec.ch/en/publication/112579) replaced the 2017 edition. Confirm the applicable editions, product requirements, and shipping regulations with the test laboratory. Product safety certification and transport testing address different obligations. ## FAQ ### Lithium ion vs lithium polymer: what is the difference? LiPo commonly refers to lithium-ion cells supplied in flexible pouches. The pouch format does not identify a separate cathode category. Choose according to the exact cell's charging limits, protection, current capability, and enclosure requirements. ### Li-ion vs LiPo: which should I use for IoT? Cylindrical lithium-ion packs suit enclosures with sufficient space and serviceable mechanical support. Pouch cells suit thin products. Compare runtime and standby power consumption using the selected pack's actual specifications. ### LiFePO4 vs lithium ion: is LiFePO4 safer? LiFePO4 generally has greater resistance to thermal runaway than many conventional lithium-ion cathode chemistries, but it is not immune to abuse. Both require controlled charging, temperature qualification, and appropriate fault protection. ### LiPo vs LiFePO4: which fits a solar sensor? Consider LiFePO4 for frequent cycling when the enclosure accommodates the pack and the charger supports its voltage profile. A pouch cell may be preferable when limited thickness determines the design. Either choice requires a charger compatible with the solar supply and the cell's temperature limits. ### NiMH vs lithium ion: which works with AA batteries? NiMH supports rechargeable AA designs without requiring lithium-ion voltage compatibility. A product that also accepts disposable AA batteries must support the permitted input-voltage range and prevent charging of primary cells. ### 18650 vs LiPo: which handles more current? Neither format automatically provides a higher current rating. Verify continuous current, pulse duration, temperature, and pack interconnections using the selected cell's datasheet. A plotted discharge test is not necessarily a maximum-current rating. ## Sources and library verification **Example cells** - [Molicel INR-18650-P28A datasheet](https://www.molicel.com/wp-content/uploads/INR18650P28A_1.3_Product-Data-Sheet-of-INR-18650-P28A-80093.pdf), version 1.3. - [EEMB LP503450 product specifications](https://www.eemb.com/product-138). The original specification reference is ZJQM-RD-SPC-H0750, dated July 1, 2021. - [Drypower IFR18650 E1600 datasheet](https://www.drypower.com.au/files/Datasheets/LiFePO4/ifr18650-e1600-datasheet.pdf), April 2021. - [FDK HR-3UTG datasheet](https://www.fdk.com/product_e/nimh_e/tech_info/HR-3UTG.pdf), revision date not printed. **Charging, protection, and fuel-gauge ICs** - [Microchip MCP73831/2 datasheet](https://www.microchip.com/content/dam/mchp/documents/APID/ProductDocuments/DataSheets/MCP73831-Family-Data-Sheet-DS20001984H.pdf), DS20001984H, June 2020. - [TI BQ24075 product and datasheet](https://www.ti.com/product/BQ24075), SLUS810N, October 2021. - [TI BQ25895 product and datasheet](https://www.ti.com/product/BQ25895), revision C, October 2022. - [TI BQ24650 product and datasheet](https://www.ti.com/product/BQ24650), SLUSA75B, January 2020. - [TI BQ24650 LiFePO4 charging application report](https://www.ti.com/lit/an/slua565/slua565.pdf), SLUA565, August 2010. - [TI BQ2970 battery protection family](https://www.ti.com/product/BQ2970), SLUSBU9I, August 2024. - [TI CSD85302L product information](https://www.ti.com/product/CSD85302L), SLPS561, November 2015. - [Analog Devices MAX17048](https://www.analog.com/en/products/max17048.html), datasheet revision 7, November 2016. - [TI BQ2002 and BQ2002SNTR](https://www.ti.com/product/BQ2002/part-details/BQ2002SNTR), BQ2002/F datasheet SLUS131A, April 2009. Flux battery-management reference designs provide starting architectures, but cell ratings, protection thresholds, and power-return connections must be checked for the actual pack. ## About the author [Jharwin Barrozo](https://flux.seobdtools.com/jharwinbarrozo) Electronics Engineer at Flux Jharwin is an electronics engineer mainly focused on satellites. He built his own ground station using Flux to monitor RF activities on the International Space Station. Find him on Flux [@jharwinbarrozo](https://flux.ai/jharwinbarrozo) Let’s start building Build your big idea together with Flux. All you need to do is describe what you want to make, or what problem you want to solve. 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This is the current number of components available at Flux today which is the largest electronic part library.](https://flux.seobdtools.com/p/assets/blogs/largest-electronics-part-library/main.webp) ### Flux Now Has the World's Largest eCAD Part Library 4 Min Read](https://flux.seobdtools.com/p/blog/flux-now-has-the-worlds-largest-ecad-part-library)[ ![Capacitor Symbols Explained: Types, Polarity, and Schematic Use](https://flux.seobdtools.com/p/assets/blogs/capacitor-symbols/main.webp) ### Capacitor Symbols Explained: Types, Polarity, and Schematic Use 8 Min Read](https://flux.seobdtools.com/p/blog/capacitor-symbols)[ ![Annotated schematic symbols for MOSFETs and bipolar transistors, including NMOS, PMOS, NPN, and PNP devices.](https://flux.seobdtools.com/p/assets/blogs/mosfet-transistor-symbols/main.webp) ### MOSFET and Transistor Symbols Explained: NMOS, PMOS, NPN, and PNP 6 Min Read](https://flux.seobdtools.com/p/blog/mosfet-transistor-symbols)[ ![Illustration showing a PDF schematic being converted into an editable PCB design with AI assistance.](https://flux.seobdtools.com/p/assets/blogs/convert-pdf-schematic-to-editable-pcb/main.webp) ### How to Convert PDF Schematics into Editable EDA Files Using AI 5 Min Read](https://flux.seobdtools.com/p/blog/convert-pdf-schematic-to-editable-pcb)[ ![Fixed and variable resistor symbols in IEC and ANSI styles, as used in circuit schematics.](https://flux.seobdtools.com/p/assets/blogs/resistor-symbols/main.webp) ### Resistor Symbols Explained: Fixed, Variable, Thermistor, and Photoresistor Symbols 8 Min Read](https://flux.seobdtools.com/p/blog/resistor-symbols)[ ![Common fuse symbols used in circuit schematics, including standard and resettable fuse variants.](https://flux.seobdtools.com/p/assets/blogs/fuse-symbols/main.webp) ### Fuse Symbols Explained: Electrical, Thermal, and Circuit Protection Symbols 8 Min Read](https://flux.seobdtools.com/p/blog/fuse-symbols)[ ![A step-by-step roadmap for learning PCB design, from schematics to a tested board.](https://flux.seobdtools.com/p/assets/blogs/how-to-learn-pcb-design/main.webp) ### How to Learn PCB Design: A Step-by-Step Roadmap for Beginners 13 Min Read](https://flux.seobdtools.com/p/blog/how-to-learn-pcb-design)[ ![High speed pcb design traces glowing over a complex pcb board. Visible are serpentine length-matched traces.](https://flux.seobdtools.com/p/assets/blogs/high-speed-design/main.webp) ### Crosstalk, Reflections, and the Real Challenges of Signal Integrity 2 Min Read](https://flux.seobdtools.com/p/blog/crosstalk-reflections-and-the-real-challenges-of-signal-integrity)[ ![What Is Signal Integrity in PCB Design? A Practical Guide](https://flux.seobdtools.com/p/assets/blogs/what-is-signal-integrity-pcb/main.webp) ### What Is Signal Integrity in PCB Design? A Practical Guide 22 Min Read](https://flux.seobdtools.com/p/blog/what-is-signal-integrity-pcb)[ ![High-Speed PCB Design: Layout Rules, Signal Integrity, and Routing Best Practices](https://flux.seobdtools.com/p/assets/blogs/high-speed-pcb-design/main.webp) ### High-Speed PCB Design: Layout Rules, Signal Integrity, and Routing Best Practices 11 Min Read](https://flux.seobdtools.com/p/blog/high-speed-pcb-design-layout-rules)[ ![A detailed illustration of EMI and EMC concepts in PCB design showing shielding, grounding, and interference reduction techniques](https://flux.seobdtools.com/p/assets/blogs/emi-emc-pcb-design-guide/main.webp) ### EMI/EMC in PCB Design: How to Reduce Interference 11 Min Read](https://flux.seobdtools.com/p/blog/emi-emc-pcb-design-guide)[ ![Illustration for PCB EMI Problems: Causes and Solutions](https://flux.seobdtools.com/p/assets/blogs/pcb-emi-issues/main.webp) ### PCB EMI Problems: Causes and Solutions 9 Min Read](https://flux.seobdtools.com/p/blog/pcb-emi-issues)[ ![Differential Pair Routing Guidelines and Controlled Impedance Best Practices](https://flux.seobdtools.com/p/assets/blogs/differential-pair-routing/main.webp) ### Differential Pair Routing Guidelines and Controlled Impedance Best Practices 10 Min Read](https://flux.seobdtools.com/p/blog/differential-pair-routing)[ ![An illustration of PCB impedance control concepts showing trace geometry, dielectric layers, and signal integrity](https://flux.seobdtools.com/p/assets/blogs/pcb-impedance-control-guide/main.webp) ### PCB Impedance Control: A Practical Guide for Engineers 7 Min Read](https://flux.seobdtools.com/p/blog/pcb-impedance-control-guide)[ ![Introducing Curved Traces in Flux](https://flux.seobdtools.com/p/assets/blogs/curved-traces/main.webp) ### Introducing Curved Traces in Flux 3 Min Read](https://flux.seobdtools.com/p/blog/introducing-curved-traces-in-flux)[ ![Illustration for Analog vs Digital PCB Design: Key Differences Explained](https://flux.seobdtools.com/p/assets/blogs/analog-vs-digital-pcb-design/main.webp) ### Analog vs Digital PCB Design: Key Differences Explained 6 Min Read](https://flux.seobdtools.com/p/blog/analog-vs-digital-pcb-design)[ ![CLC pi filter schematic with two shunt capacitors flanking a series inductor between VIN and VOUT](https://flux.seobdtools.com/p/assets/blogs/pi-filter/main.webp) ### Pi Filters Explained: Design, Components & Applications 8 Min Read](https://flux.seobdtools.com/p/blog/pi-filter)[ ![RS485 electrical pin out and it's actual physical connector in 3D](https://flux.seobdtools.com/p/assets/blogs/rs485/main.webp) ### RS485 Explained: Wiring, Specifications, and Applications 6 Min Read](https://flux.seobdtools.com/p/blog/rs485-a-technical-overview)[ ![What is RS232?](https://flux.seobdtools.com/p/assets/blogs/rs232/main.webp) ### What is RS232? 5 Min Read](https://flux.seobdtools.com/p/blog/what-is-rs232)[ ![SPI vs. I2C: Which Communication Protocol Should You Use?](https://flux.seobdtools.com/p/assets/blogs/spi-vs-i2c/main.webp) ### SPI vs. I2C: Which Communication Protocol Should You Use? 7 Min Read](https://flux.seobdtools.com/p/blog/spi-vs-i2c)[ ![RJ45 Connectors: Pinouts, Categories, Uses, and Testing](https://flux.seobdtools.com/p/assets/blogs/hatter/rj45/main.webp) ### RJ45 Connectors: Pinouts, Categories, Uses, and Testing 6 Min Read](https://flux.seobdtools.com/p/blog/rj45-connectors-your-quick-guide-to-specs-and-uses)[ ![CO2 Sensor Technology: How These Devices Detect Carbon Dioxide](https://flux.seobdtools.com/p/assets/blogs/hatter/co2-sensor/main.webp) ### CO2 Sensor Technology: How These Devices Detect Carbon Dioxide 5 Min Read](https://flux.seobdtools.com/p/blog/co2-sensor-technology-how-these-devices-detect-carbon-dioxide)[ ![Hall Effect Joysticks: How They Work, Benefits, and Uses](https://flux.seobdtools.com/p/assets/blogs/hatter/hall-effect/main.webp) ### Hall Effect Joysticks: How They Work, Benefits, and Uses 6 Min Read](https://flux.seobdtools.com/p/blog/how-hall-effect-joysticks-deliver-unmatched-accuracy)[ ![A close up of a crystal oscillator on an electronic printed circuit board.](https://flux.seobdtools.com/p/assets/blogs/oscillators/main.webp) ### What Is an Oscillator? Beginner's Guide to Oscillating Circuits 3 Min Read](https://flux.seobdtools.com/p/blog/what-is-an-oscillator-a-beginners-guide-to-oscillating-circuits)[ ![A guide to flexible PCB design covering materials, layout rules, and applications for modern electronics](https://flux.seobdtools.com/p/assets/blogs/flex-pcb-design-guide/main.webp) ### Flexible PCB Design Guide: Materials, Layout, and Applications 7 Min Read](https://flux.seobdtools.com/p/blog/flex-pcb-design-guide)[ ![Illustration for Rigid-Flex PCB Design: Benefits, Challenges, and Layout Tips](https://flux.seobdtools.com/p/assets/blogs/rigid-flex-pcb-design/main.webp) ### Rigid-Flex PCB Design: Benefits, Challenges, and Layout Tips 7 Min Read](https://flux.seobdtools.com/p/blog/rigid-flex-pcb-design)[ ![Illustration of printed PCB trace antennas with RF routing, ground-plane keepouts, and radiating elements.](https://flux.seobdtools.com/p/assets/blogs/how-to-design-pcb-trace-antenna/main.webp) ### The RF Engineer's Guide to Designing Printed Trace Antennas 6 Min Read](https://flux.seobdtools.com/p/blog/how-to-design-pcb-trace-antenna)[ ![Illustration of SMA connectors and RF PCB mounting styles used for high-frequency signal connections.](https://flux.seobdtools.com/p/assets/blogs/sma-connectors/main.webp) ### SMA Connectors Explained: Types, Applications, and PCB Design Considerations 7 Min Read](https://flux.seobdtools.com/p/blog/sma-connectors)[ ![RC low-pass filter concept art showing a noisy input waveform smoothed into a clean sine wave over a PCB](https://flux.seobdtools.com/p/assets/blogs/rc-low-pass-filter/main.webp) ### RC Low-Pass Filter: Formula, Cutoff Frequency & Design 10 Min Read](https://flux.seobdtools.com/p/blog/rc-low-pass-filter)[ ![A smartphone beside an NFC reader board and a contactless tag.](https://flux.seobdtools.com/p/assets/blogs/nfc-vs-rfid/main.webp) ### NFC vs RFID: Board Design, Tags, and Reader Choices 13 Min Read](https://flux.seobdtools.com/p/blog/nfc-vs-rfid)[ ![Low-pass and high-pass filter circuits with low- and high-frequency waveforms.](https://flux.seobdtools.com/p/assets/blogs/low-pass-vs-high-pass-filter/main.webp) ### Low-Pass vs High-Pass Filter: Differences and Examples 11 Min Read](https://flux.seobdtools.com/p/blog/low-pass-vs-high-pass-filter)[ ![A Bluetooth module on a PCB, with the antenna placed at the board edge.](https://flux.seobdtools.com/p/assets/blogs/how-to-choose-a-bluetooth-module/main.webp) ### How to Choose a Bluetooth Module for Your PCB Design 11 Min Read](https://flux.seobdtools.com/p/blog/how-to-choose-a-bluetooth-module)[ ![Different packages of voltage regulators and its common reference design](https://flux.seobdtools.com/p/assets/blogs/decoding-voltage-regulators/main.webp) ### Decoding Voltage Regulators: How They Work in Everyday Electronics 5 Min Read](https://flux.seobdtools.com/p/blog/decoding-voltage-regulators-how-they-work-in-everyday-electronics)[ ![Voltage Regulators: How They Work, Types, and Applications](https://flux.seobdtools.com/p/assets/blogs/hatter/voltage-regulator/main.webp) ### Voltage Regulators: How They Work, Types, and Applications 4 Min Read](https://flux.seobdtools.com/p/blog/voltage-regulator-principles-types-and-key-applications)[ ![PCB Design for Buck Switching Converter Best Practices](https://flux.seobdtools.com/p/assets/blogs/buck-converter/main.webp) ### Buck Converter Design: Components, PCB Layout, and Formulas 7 Min Read](https://flux.seobdtools.com/p/blog/design-buck-converters-like-a-pro)[ ![Side by side high level schematic diagram of a buck and boost converter with their roles in power systems](https://flux.seobdtools.com/p/assets/blogs/buck-boost-converters/main.webp) ### Buck and Boost Converters: How They Work and Where They’re Used 3 Min Read](https://flux.seobdtools.com/p/blog/explore-the-advantages-of-buck-and-boost-converter-in-modern-electronics)[ ![Typical schematic diagram of LM2596 buck converter or step-down converter with its various external components like capacitors, zener diode, and inductor](https://flux.seobdtools.com/p/assets/blogs/lm2596/main.webp) ### LM2596 in Action: Case Study of Its Application in Power Supply Units 5 Min Read](https://flux.seobdtools.com/p/blog/lm2596-in-action-case-study-of-its-application-in-power-supply-units)[ ![A complex printed circuit board highlighting the proper usage of ground fills/poor, stitching vias and power planes, without any components.](https://flux.seobdtools.com/p/assets/blogs/gnd-fills-power-planes/main.webp) ### Guide to GND Fills and Power Planes 6 Min Read](https://flux.seobdtools.com/p/blog/guide-to-gnd-fills-and-power-planes)[ ![Illustration for Power Distribution Network (PDN) Design in PCBs](https://flux.seobdtools.com/p/assets/blogs/pdn-design-pcb/main.webp) ### Power Distribution Network (PDN) Design in PCBs 10 Min Read](https://flux.seobdtools.com/p/blog/pdn-design-pcb)[ ![A detailed illustration of PCB grounding techniques showing ground planes, return paths, and noise reduction strategies](https://flux.seobdtools.com/p/assets/blogs/pcb-grounding-techniques/main.webp) ### PCB Grounding Techniques for Noise Reduction and Stability 11 Min Read](https://flux.seobdtools.com/p/blog/pcb-grounding-techniques)[ ![A detailed illustration of high-current PCB design showing trace sizing, thermal management, and power layout strategies](https://flux.seobdtools.com/p/assets/blogs/high-current-pcb-design/main.webp) ### Designing High-Current PCBs: Layout and Safety Considerations 8 Min Read](https://flux.seobdtools.com/p/blog/high-current-pcb-design)[ ![An illustration showing PCB trace resistance calculation concepts with copper traces and measurement tools](https://flux.seobdtools.com/p/assets/blogs/how-to-calculate-pcb-trace-resistance/main.webp) ### How to Calculate PCB Trace Resistance 6 Min Read](https://flux.seobdtools.com/p/blog/how-to-calculate-pcb-trace-resistance)[ ![A focused electrician wearing safety gear is carefully inspecting or repairing an electrical box with wires attached to it. He wears a yellow hard hat, safety glasses, ear protection, and gloves, highlighting the importance of personal protective equipment when working with electrical systems. The meticulous examination of the electrical connections signifies the critical nature of ensuring proper voltage levels and avoiding voltage drop, which can lead to reduced efficiency and potential damage to electrical components.](https://flux.seobdtools.com/p/assets/blogs/voltage-drop/main.webp) ### Voltage Drop Calculations: Formulas, Factors, and Guidelines 5 Min Read](https://flux.seobdtools.com/p/blog/importance-of-voltage-drop-calculations)[ ![An array of AC to DC converter circuit boards featuring components like transformers, bridge rectifiers, and capacitors to facilitate the conversion of alternating current to direct current.](https://flux.seobdtools.com/p/assets/blogs/ac-to-dc-converters/main.webp) ### AC to DC Converter: The Backbone of Power Electronics 4 Min Read](https://flux.seobdtools.com/p/blog/ac-to-dc-converter-the-backbone-of-power-electronics)[ ![AC-to-DC Converters: How They Work, Types, and Design Tips](https://flux.seobdtools.com/p/assets/blogs/hatter/ac-dc-converter/main.webp) ### AC-to-DC Converters: How They Work, Types, and Design Tips 5 Min Read](https://flux.seobdtools.com/p/blog/what-is-an-ac-to-dc-converter-technical-basics-explained)[ ![Illustration for Thermal Management in PCB Design: Methods and Best Practices](https://flux.seobdtools.com/p/assets/blogs/pcb-thermal-management/main.webp) ### Thermal Management in PCB Design: Methods and Best Practices 10 Min Read](https://flux.seobdtools.com/p/blog/pcb-thermal-management)[ ![PCB Thermal Management: Analysis and Design Best Practices](https://flux.seobdtools.com/p/assets/blogs/pcb-thermal-analysis/main.webp) ### PCB Thermal Management: Analysis and Design Best Practices 6 Min Read](https://flux.seobdtools.com/p/blog/achieving-efficient-heat-flow-pcb-thermal-management-best-practices)[ ![Illustration of a PPS chip symbolically powering three fast charging technologies—PPS, Power Delivery (PD), and Quick Charge (QC)—on a dark background.](https://flux.seobdtools.com/p/assets/blogs/programmable-power-supply/main.webp) ### Understanding PPS Fast Charging: What It Is and How It Works 3 Min Read](https://flux.seobdtools.com/p/blog/understanding-pps-fast-charging-what-it-is-and-how-it-works)[ ![Illustration for Decoupling Capacitors in PCB Design: Placement and Selection](https://flux.seobdtools.com/p/assets/blogs/decoupling-capacitors-pcb/main.webp) ### Decoupling Capacitors in PCB Design: Placement and Selection 9 Min Read](https://flux.seobdtools.com/p/blog/decoupling-capacitors-pcb)[ ![The image presents a graphical representation of Multilayer Ceramic Capacitors (MLCCs). On the left side of the image, there is a three-dimensional illustration of a capacitor, with a beige body and alternating white and golden layers, representing the ceramic and metal layers of the capacitor. An arrow points from this illustration to the right side of the image, where there is a cutaway view of a similar capacitor, showing multiple golden conducting layers separated by white ceramic layers, which illustrate the internal structure of the capacitor. The background is dark green, and above the illustrations, in large white and green text, the acronym "MLCCs" is spelled out, followed by the full term "MULTILAYER CERAMIC CAPACITORS" in smaller capital letters.](https://flux.seobdtools.com/p/assets/blogs/multilayer-ceramic-capacitors/main.webp) ### What Is a Multilayer Ceramic Capacitor (MLCC)? 5 Min Read](https://flux.seobdtools.com/p/blog/what-is-a-multilayer-ceramic-capacitor-key-features-and-applications)[ ![Cutaway diagram of a tantalum capacitor showing anode, dielectric, cathode layers, epoxy case, and leads](https://flux.seobdtools.com/p/assets/blogs/tantalum-capacitor/main.webp) ### Tantalum Capacitors Guide: Polarity, Derating & Risks 7 Min Read](https://flux.seobdtools.com/p/blog/tantalum-capacitor)[ ![A big text Amps vs Volts with their corresponding symbols (I and V) as background](https://flux.seobdtools.com/p/assets/blogs/amps-vs-volts/main.webp) ### Amps vs. Volts: Key Differences and How They Work Together 4 Min Read](https://flux.seobdtools.com/p/blog/amps-vs-volts-understanding-the-key-differences)[ ![Shunt resistor, Hall-effect, and current transformer current sensors compared.](https://flux.seobdtools.com/p/assets/blogs/current-sensor-types/main.webp) ### Current Sensor Types: Shunt, Hall Effect, and Current Transformer Comparison 12 Min Read](https://flux.seobdtools.com/p/blog/current-sensor-types)[ ![Never Worry About Stackups Again: Introducing the Stackup Editor](https://flux.seobdtools.com/p/assets/blogs/stackup_editor/main.webp) ### Never Worry About Stackups Again: Introducing the Stackup Editor 3 Min Read](https://flux.seobdtools.com/p/blog/never-worry-about-stackups-again-introducing-the-stackup-editor)[ ![Flux Stackup Editor showing a Standard 4-Layer PCB stackup with Top Copper, Mid-Layer 1, Mid-Layer 2, and Bottom Copper signal layers separated by Prepreg and Core dielectric materials, with layer thicknesses and dielectric constants configured for impedance-controlled PCB design.](https://flux.seobdtools.com/p/assets/blogs/multilayer-pcb-design/main.webp) ### Multilayer PCB Design: Stackup and Routing Best Practices 8 Min Read](https://flux.seobdtools.com/p/blog/multilayer-pcb-design-best-practices)[ ![An illustrated guide to PCB materials comparing FR4 and advanced substrates for high-performance circuit board design](https://flux.seobdtools.com/p/assets/blogs/pcb-materials-guide/main.webp) ### How to Choose PCB Materials: FR4 vs Advanced Substrates 7 Min Read](https://flux.seobdtools.com/p/blog/pcb-materials-guide)[ ![A detailed illustration showing the cross-section of a multilayer PCB with different via types including through-hole, blind, buried, and microvias](https://flux.seobdtools.com/p/assets/blogs/pcb-via-types-guide/main.webp) ### Blind Vias, Buried Vias, and Microvias: A Complete Guide to PCB Via Types 12 Min Read](https://flux.seobdtools.com/p/blog/pcb-via-types-guide)[ ![A 2d view and layout of a pcb board design showing different type of vias](https://flux.seobdtools.com/p/assets/blogs/different-type-vias/main.webp) ### Exploring Different Types of Vias in PCB 2 Min Read](https://flux.seobdtools.com/p/blog/exploring-different-types-of-pcb-vias)[ ![A complex PCB board with high-density interconnect (HDI) technology, featuring advanced routing on each of its copper layers.](https://flux.seobdtools.com/p/assets/blogs/smart-micro-vias-blind-buried-vias/main.webp) ### High-Density PCBs just got easier with Smart Vias 4 Min Read](https://flux.seobdtools.com/p/blog/high-density-pcbs-just-got-easier-with-smart-vias)[ ![A detailed illustration of a multilayer PCB cross-section showing via stitching connecting ground planes across layers](https://flux.seobdtools.com/p/assets/blogs/via-stitching-pcb-guide/main.webp) ### How to Use Via Stitching in PCB Design 11 Min Read](https://flux.seobdtools.com/p/blog/via-stitching-pcb-guide)[ ![An illustration of PCB design constraints showing electrical, mechanical, and manufacturing rules](https://flux.seobdtools.com/p/assets/blogs/pcb-design-constraints/main.webp) ### PCB Design Constraints: What Engineers Need to Know 7 Min Read](https://flux.seobdtools.com/p/blog/pcb-design-constraints)[ ![PCB constraint management showing how engineers control layout rules for routing, spacing, and impedance](https://flux.seobdtools.com/p/assets/blogs/pcb-constraint-management/main.webp) ### PCB Constraint Management: How Engineers Control Layout Rules 6 Min Read](https://flux.seobdtools.com/p/blog/pcb-constraint-management)[ ![Design Rule Checking (DRC) in PCB Design: Real-Time vs Batch, Rules, and Common Failures](https://flux.seobdtools.com/p/assets/blogs/pcb-drc/main.webp) ### Design Rule Checking (DRC) in PCB Design: Real-Time vs Batch, Rules, and Common Failures 8 Min Read](https://flux.seobdtools.com/p/blog/pcb-design-rule-checking-drc)[ ![ERC vs DRC in PCB design showing the difference between electrical rule checks and design rule checks](https://flux.seobdtools.com/p/assets/blogs/erc-vs-drc/main.webp) ### Electrical Rule Check (ERC) vs DRC in PCB Design 7 Min Read](https://flux.seobdtools.com/p/blog/erc-vs-drc)[ ![A guide to PCB design reviews covering schematic, layout, and DFM checks for catching errors early](https://flux.seobdtools.com/p/assets/blogs/pcb-design-review-process/main.webp) ### PCB Design Reviews: Best Practices for Catching Errors Early 6 Min Read](https://flux.seobdtools.com/p/blog/pcb-design-review-process)[ ![Common PCB Design Mistakes and How to Avoid Them](https://flux.seobdtools.com/p/assets/blogs/pcb-design-mistakes/main.webp) ### Common PCB Design Mistakes and How to Avoid Them 31 Min Read](https://flux.seobdtools.com/p/blog/pcb-design-mistakes)[ ![Image showing a stack of printed circuit boards (PCBs) with a large white 'X' over them, highlighting '5 Common Mistakes in PCB Design.' The background features intricate PCB traces in red and blue on a dark surface, with a purple gradient highlighting the title. The image emphasizes errors commonly made in PCB design, such as layout, signal integrity, and component placement.](https://flux.seobdtools.com/p/assets/blogs/5-common-mistakes-in-pcb-design/main.webp) ### 5 Common PCB Design Mistakes and How to Avoid Them 7 Min Read](https://flux.seobdtools.com/p/blog/5-pcb-design-mistakes-that-could-ruin-your-board)[ ![A guide to PCB silkscreen design covering labeling, readability, and common manufacturing mistakes](https://flux.seobdtools.com/p/assets/blogs/pcb-silkscreen-design/main.webp) ### PCB Silkscreen Design: Guidelines and Common Mistakes 7 Min Read](https://flux.seobdtools.com/p/blog/pcb-silkscreen-design)[ ![Advanced complex PCB boards using Flux's Smart Polygons](https://flux.seobdtools.com/p/assets/blogs/smart-polygons/main.webp) ### Smart Polygons: Advanced PCB Design Just Got Easier 4 Min Read](https://flux.seobdtools.com/p/blog/smart-polygons-advanced-pcb-design-just-got-easier)[ ![A complex printed circuit board with lots of electronic components. A 3D render of the PCB on Flux.](https://flux.seobdtools.com/p/assets/blogs/new-3d-render/main.webp) ### Automatically Create Photorealistic PCB Renders 3 Min Read](https://flux.seobdtools.com/p/blog/automatically-create-photorealistic-pcb-renders)[ ![A tool on Flux to measure the distance between two pads in PCB editor with a text mm to mil conversion.](https://flux.seobdtools.com/p/assets/blogs/mm-to-mil/main.webp) ### How to Convert from MM to Mils: a Guide for Beginners 4 Min Read](https://flux.seobdtools.com/p/blog/how-to-convert-from-mm-to-mils-a-guide-for-beginners)[ ![Illustration of a printed circuit board showing solder mask over copper traces and exposed pads.](https://flux.seobdtools.com/p/assets/blogs/what-is-solder-mask/main.webp) ### What Is Solder Mask? Materials, Colors, and PCB Design Rules 6 Min Read](https://flux.seobdtools.com/p/blog/what-is-solder-mask)[ ![Designing Custom PCB Outlines: Fixing DXF and SVG Import Failures](https://flux.seobdtools.com/p/assets/blogs/import-dxf-board-outline-error/main.webp) ### Designing Custom PCB Outlines: Fixing DXF and SVG Import Failures 6 Min Read](https://flux.seobdtools.com/p/blog/import-dxf-board-outline-error)[ ![PCB Enclosure Design: How to Design an Enclosure](https://flux.seobdtools.com/p/assets/blogs/pcb-enclosure-design/main.webp) ### PCB Enclosure Design: How to Design an Enclosure 13 Min Read](https://flux.seobdtools.com/p/blog/pcb-enclosure-design)[ ![Teal isometric line illustration of a PCB above an L-shaped sheet-metal bracket with mounting holes](https://flux.seobdtools.com/p/assets/blogs/sheet-metal-bracket-from-prompt/main.webp) ### How to design a sheet metal bracket for your PCB with a text prompt 5 Min Read](https://flux.seobdtools.com/p/blog/how-to-design-a-sheet-metal-bracket-for-your-pcb-with-a-text-prompt)[ ![Teal isometric line illustration of a PCB between an enclosure base and lid, with downward load arrows](https://flux.seobdtools.com/p/assets/blogs/pcb-enclosure-simulation/main.webp) ### How to run thermal and stress simulation on a PCB enclosure in the browser 8 Min Read](https://flux.seobdtools.com/p/blog/how-to-run-thermal-and-stress-simulation-on-a-pcb-enclosure-in-the-browser)[ ![Teal isometric line illustration of a PCB in an enclosure with an open pin-hinged lid](https://flux.seobdtools.com/p/assets/blogs/hinged-pcb-enclosure/main.webp) ### Designing hinges, snap-fits and moving parts for your enclosure in Flux 7 Min Read](https://flux.seobdtools.com/p/blog/designing-hinges-snap-fits-and-moving-parts-for-your-enclosure-in-flux)[ ![A PCB layout with IPC design standards that apply to trace width, land patterns, and assembly.](https://flux.seobdtools.com/p/assets/blogs/pcb-ipc-standards/main.webp) ### PCB IPC Standards Explained: IPC-2221, IPC-2152, IPC-7351, and More 9 Min Read](https://flux.seobdtools.com/p/blog/pcb-ipc-standards)[ ![A guide to PCB component selection covering electrical specs, footprints, thermal performance, and sourcing best practices](https://flux.seobdtools.com/p/assets/blogs/component-selection-pcb-design/main.webp) ### Component Selection in PCB Design: How Engineers Choose the Right Parts 7 Min Read](https://flux.seobdtools.com/p/blog/component-selection-pcb-design)[ ![Flux Copilot’s new AI-powered part search makes finding and placing components faster and easier using natural language.](https://flux.seobdtools.com/p/assets/blogs/smarter-part-search/main.webp) ### Smarter Part Search Just Got a Major Upgrade 6 Min Read](https://flux.seobdtools.com/p/blog/smarter-part-search-just-got-a-major-upgrade)[ ![A detailed illustration showing PCB footprint design with pad layout, silkscreen markings, and courtyard boundaries](https://flux.seobdtools.com/p/assets/blogs/pcb-footprint-design-guide/main.webp) ### How to Design a PCB Footprint (Step-by-Step Guide) 8 Min Read](https://flux.seobdtools.com/p/blog/pcb-footprint-design-guide)[ ![A close-up xray of printed circuit board with its multi-layer traces featuring short circuit and over current protection.](https://flux.seobdtools.com/p/assets/blogs/protection-circuit-101/main.webp) ### Protection Circuit 101: Securing Your Electronics from Overcurrent and Short Circuits 5 Min Read](https://flux.seobdtools.com/p/blog/protection-circuit-101-securing-your-electronics-from-overcurrent-and-short-circuits)[ ![Diagram of a simple circuit with an inductor and a flyback diode. The resistor represents the resistance of the inductor's windings.](https://flux.seobdtools.com/p/assets/blogs/flyback-diodes/main.webp) ### Understanding the Flyback Diode: Your Essential Guide to Functionality and Why You Need One 3 Min Read](https://flux.seobdtools.com/p/blog/understanding-the-flyback-diode-your-essential-guide-to-functionality-and-why-you-need-one)[ ![3D render of a zener diode with its electronic symbol and pinout which consists of anode and cathode](https://flux.seobdtools.com/p/assets/blogs/what-is-zener-diode/main.webp) ### What Is a Zener Diode? How It Works and Where It’s Used 5 Min Read](https://flux.seobdtools.com/p/blog/what-is-a-zener-diode-an-essential-breakdown)[ ![A cross-section through an nMOSFET when the gate voltage VGS is below the threshold for making a conductive channel; there is little or no conduction between the terminals drain and source; the switch is off. When the gate is more positive, it attracts electrons, inducing an n-type conductive channel in the substrate below the oxide (yellow), which allows electrons to flow between the n-doped terminals; the switch is on.](https://flux.seobdtools.com/p/assets/blogs/mosfet-basics/main.webp) ### Understanding the Fundamentals: MOSFET Basics for Beginners 6 Min Read](https://flux.seobdtools.com/p/blog/understanding-the-fundamentals-mosfet-basics-for-beginners)[ ![Two MOSFET packages on circuit boards, with a green indicator LED.](https://flux.seobdtools.com/p/assets/blogs/nmos-vs-pmos/main.webp) ### NMOS vs PMOS: Differences & When to Use Each 15 Min Read](https://flux.seobdtools.com/p/blog/nmos-vs-pmos)[ ![Two transistor packages mounted on separate circuit boards.](https://flux.seobdtools.com/p/assets/blogs/npn-vs-pnp-transistors/main.webp) ### NPN vs PNP Transistors: Differences & When to Use Each 13 Min Read](https://flux.seobdtools.com/p/blog/npn-vs-pnp-transistors)[ ![Typical schematic diagram of LM741, a classic operational amplifier](https://flux.seobdtools.com/p/assets/blogs/lm741/main.webp) ### LM741 Pinout: A Deep Dive into a Classic Op Amp 4 Min Read](https://flux.seobdtools.com/p/blog/lm741-pinout-a-deep-dive-into-a-classic-op-amp)[ ![An assortment of variable resistors displayed on a dark background with the text 'Variable Resistors' at the top and a circuit symbol for a variable resistor in the center](https://flux.seobdtools.com/p/assets/blogs/6-types-of-variable-resistors/main.webp) ### 6 Types of Variable Resistors: a Detailed Look at Their Uses 5 Min Read](https://flux.seobdtools.com/p/blog/6-types-of-variable-resistors-a-detailed-look-at-their-uses)[ ### Parallel and Series Resistor Calculator 3 Min Read](https://flux.seobdtools.com/p/blog/parallel-and-series-resistor-calculator)[ ![A resistor showing its different color bands](https://flux.seobdtools.com/p/assets/site-cms/643f890cd71a69ee18b71efa_resistor-color-code-calculator.png) ### Resistor Color Code Calculator 4 Min Read](https://flux.seobdtools.com/p/blog/resistor-color-code-calculator)[ ![A comparison illustration of SMT and through-hole PCB assembly technologies](https://flux.seobdtools.com/p/assets/blogs/smt-vs-through-hole/main.webp) ### SMT vs Through-Hole Technology: Which Should You Use? 8 Min Read](https://flux.seobdtools.com/p/blog/smt-vs-through-hole)[ ![A person soldering a circuit board made with Flux](https://flux.seobdtools.com/p/assets/blogs/flux-soldering/main.webp) ### How to Use Flux When Soldering Electronics 12 Min Read](https://flux.seobdtools.com/p/blog/solder-flux-guide-for-soldering)[ ![Different types of toggle switches scattered and a big text - Toggle switch](https://flux.seobdtools.com/p/assets/blogs/toggle-switch/main.webp) ### The Ultimate Guide to Toggle Switches: Types, Uses, and How They Work 3 Min Read](https://flux.seobdtools.com/p/blog/the-ultimate-guide-to-toggle-switches-types-uses-and-how-they-work)[ ![A push button switch soldered on a rigid-flex printed circuit board](https://flux.seobdtools.com/p/assets/blogs/push-button/main.webp) ### What Is the Science Behind Push Button Switches and How They Work 6 Min Read](https://flux.seobdtools.com/p/blog/what-is-the-science-behind-push-button-switches-and-how-they-work)[ ![Tactile Switches: Wiring, Debouncing, and PCB Design](https://flux.seobdtools.com/p/assets/blogs/tactile-switches-guide/main.webp) ### Tactile Switches: Wiring, Debouncing, and PCB Design 8 Min Read](https://flux.seobdtools.com/p/blog/tactile-switches-guide)[ ![Close up of different types of electrical connectors, wire connectors, and solder connectors piled up.](https://flux.seobdtools.com/p/assets/blogs/electrical-connectors/main.webp) ### Electrical Wire Connector Types and Uses 4 Min Read](https://flux.seobdtools.com/p/blog/the-ultimate-guide-to-electrical-connectors-and-wiring-connection)[ ![A selection of low-profile board-to-board connectors on a white background.](https://flux.seobdtools.com/p/assets/blogs/board-to-board-connectors/main.webp) ### Board-to-Board Connectors: Types, Pitch and Stack Height 13 Min Read](https://flux.seobdtools.com/p/blog/board-to-board-connectors)[ ![Temperature probes and a thermistor beside a measurement circuit.](https://flux.seobdtools.com/p/assets/blogs/rtd-vs-thermocouple-vs-thermistor/main.webp) ### RTD vs Thermocouple vs Thermistor: Sensor Selection 14 Min Read](https://flux.seobdtools.com/p/blog/rtd-vs-thermocouple-vs-thermistor)[ ![An illustration of PCB debugging tools and techniques including multimeter, oscilloscope, and thermal imaging](https://flux.seobdtools.com/p/assets/blogs/pcb-debugging-common-issues/main.webp) ### Why Your PCB Is Failing: Debugging Common Issues 7 Min Read](https://flux.seobdtools.com/p/blog/pcb-debugging-common-issues)[ ![555 Timer Guide: Pinout, Operating Modes, and Circuit Examples](https://flux.seobdtools.com/p/assets/blogs/555-timer/main.webp) ### 555 Timer Guide: Pinout, Operating Modes, and Circuit Examples 10 Min Read](https://flux.seobdtools.com/p/blog/555-timer)[ ![Inverting Op-Amp Circuits: Formula, Gain, and Design Examples](https://flux.seobdtools.com/p/assets/blogs/inverting-op-amp/main.webp) ### Inverting Op-Amp Circuits: Formula, Gain, and Design Examples 10 Min Read](https://flux.seobdtools.com/p/blog/inverting-op-amp)[ ![How to Wire a Potentiometer: Pinout, Diagrams, and PCB Examples](https://flux.seobdtools.com/p/assets/blogs/how-to-wire-a-potentiometer/main.webp) ### How to Wire a Potentiometer: Pinout, Diagrams, and PCB Examples 8 Min Read](https://flux.seobdtools.com/p/blog/how-to-wire-a-potentiometer) See All (125) ## Let’s start building. Let’s build your idea together. All you need to do is describe what you want to make, or what problem you want to solve. Flux will work with you to make it a reality. [Try it Free](https://flux.seobdtools.com/signup) ![Close-up of a Flux-designed printed circuit board](https://flux.seobdtools.com/p/assets/homepage-v2/mission-visual.webp)