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⚡ Power Up – Essential Power Electronics Components
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items Power is everything! Whether you're designing a small DIY circuit or a complex embedded system, choosing the right power components is crucial. This list covers essential power electronics components to keep your projects running efficiently, safely,...
Sections
5
🔹 Voltage Regulation & Conversion
🔹 Power Supplies & Batteries
🔹 Capacitors & Energy Storage
🔹 Power Protection & Safety
🔹 Power Control & Switching
🔹 Voltage Regulation & Conversion
LM7805 Voltage Regulator (5V, Linear Regulator) A classic linear voltage regulator that provides a steady 5V output, ideal for powering microcontrollers and sensors.
5V 1.5A Linear Voltage Regulator - 7805 TO-220 : ID 2164
LM317 Adjustable Voltage Regulator A versatile linear regulator that allows you to set a custom output voltage with just a couple of resistors.
LM317 data sheet, product information and support | TI.com
XL4015 5A Buck Converter (Step-Down Module) Efficient switching regulator that steps down voltage with minimal heat loss—perfect for battery-powered projects.
XL4015 DC-DC Step Down Module - Components101
MT3608 Boost Converter (Step-Up Module) Small but powerful step-up regulator that converts lower voltages to a higher, stable output—great for battery projects.
MT3608 - 2A DC-DC Step Up (Boost) Power Module
🔹 Power Supplies & Batteries
Mean Well LRS-350-24 Switching Power Supply Reliable, high-efficiency power supply for DIY lab benches and industrial projects.
LRS-350-24 MEAN WELL | POWER SUPPLY
18650 Lithium-Ion Batteries (Samsung/LG/Sony/Panasonic) High-capacity rechargeable batteries commonly used in robotics, IoT, and portable devices.
Samsung 18650 Batteries | High-Performance Lithium …
TP4056 Li-Ion Battery Charging Module A small, easy-to-use module for safely charging and protecting lithium-ion batteries.
TP4056A Li-ion Battery Charging/Discharging Module
DC-DC USB Power Bank Module Allows you to create a DIY portable power bank using 18650 cells—great for on-the-go projects.
Easy to Build 18650 Battery DIY Power Bank Circuit - Circuit Digest
🔹 Capacitors & Energy Storage
4700µF 35V Electrolytic Capacitor Useful for power supply filtering and stabilizing voltage in circuits.
4700uF 35V Electrolytic Capacitor - Rajshree Electronics
104 Ceramic Capacitors (100nF) Essential for noise filtering and voltage smoothing in high-frequency circuits.
Understanding the 104 Ceramic Capacitor: Specs, Uses, and More
Supercapacitor 2.7V 500F Ultra-fast energy storage device for backup power applications and energy harvesting.
500 F 2.7 VDC Supercapacitors / Ultracapacitors – Mouser
🔹 Power Protection & Safety
Schottky Diode 1N5819 A fast-recovery diode with low forward voltage drop, ideal for preventing reverse polarity damage.
1N5819 - MACOM
Polyfuse Resettable Fuse (PTC 500mA, 1A, 2A) Automatically resets after a short circuit, providing overcurrent protection for circuits.
SMD050F-2 Littelfuse Inc. | Circuit Protection | DigiKey
TVS Diode (Transient Voltage Suppression, SMAJ5.0A) Protects sensitive electronics from voltage spikes caused by surges or ESD events.
SMAJ5.0A Vishay General Semiconductor | Mouser - Mouser …
NTC Thermistor 10kΩ Used for temperature sensing and inrush current limiting in power circuits.
How to Use NTC Thermistors for Inrush Current Limiting
🔹 Power Control & Switching
IRFZ44N MOSFET (N-Channel, 49A, 55V) Powerful MOSFET transistor for efficient switching in high-power applications.
IRFZ44n Mosfet Datasheet, Pinout, Features & Applications
Relay Module 5V 10A Electromechanical switch for controlling high-power devices with microcontrollers.
5V Relay Module 1 Channel - 10A | Fastbit Embedded
Solid State Relay (SSR-25DA, 25A 380V AC) Silent, fast, and durable relay for AC loads, commonly used in industrial automation.
SSR-25 DA DC-AC 25A Solid State Relay (SSR-25 DA)