ReviewsProtection Circuit Module

DEVMO 2PCS PAM8403 3W Stereo Audio Power Amplifier Board Module Super Mini DC 5V with Volume Control Potentionmeter

★Can use the computer USB port, USB power bank or a mobile phone charger to supply the 5V support power,Battery power can also be used.
★Provides 3W (left channel) + 3W (right channel) output power into a 4Ω speaker load and 5V power supply.
★Integrated power switch and volume control (turn knob fully counter-clockwise to turn off).
★Module has short-circuit current protection, under-voltage lockout and over-temperature protection (shuts down at an internal temperature of 140C....
★Package Includes: 2PCS PAM8403 Class D Stereo Audio Power Amplifier Module with Volume Control Potentiometer.

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DROK® LM2596 DC Buck Volt Regulator 36V to 24V 12V 5V 3.3V 3V Converters Constant Volt&Amp 5-36V to 1.25-32V 5A 75W Step-Down LED Driver Switch Power Supply Digital LED Voltmeter USB Output

Output voltage :1.25-32V continuously adjustable,default output 17V. Output Current : 5A MAX( Please use it within 4.5A).
Having a current limiting protection. Even if output short circuit, it will not burn module.
Use as an ordinary buck module with overcurrent protection capabilities.
Use it as a constant current LED driver module or a battery charger.
If its output is more than 3A/35W, please enhance heat dissipation!.

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Organizer 2pcs 4S 40A Li-ion Lithium Battery 18650 Charger PCB BMS Protection Board with Balance for Drill Motor 14.8V 16.8V Lipo Cell Module

Multiple Protections: Over-discharge protection, overcurrent protection, overcharge protection.
LOW STANDBY CURRENT: MOS transistor can control the battery charge and discharge, low standby current consumption..
Applications:It is suitable for lithium batteries with nominal voltage of 3.7V and full voltage of 4.2V (including 18650, 26650, polymer lithium....
4S 40A 16.8V Li-ion Lithium Battery Protection Board PCB BMS Charger Protection Circuit Balance Charging Module for Drill Motor Motorcycle Battery.

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Dorhea 12V to 6V Car Power Voltage Converter DC 9V-22V 12V to DC 6V Buck Voltage 3A 18W Waterproof DC Step Down Volt Module Power Supply Board Compatible with Car Vehicle Automotive LED Display Radio

High conversion efficiency of 95%, module properties -- synchronous rectification non-isolated buck module..
Car power converter input voltage range is DC 9V-22V, output voltage range is DC 6V, output current is 3A, output power is 18W..
Protection --- Over-temp protection, over-current protection, over-voltage protection, input reverse connection protection, output short-circuit....
Compatible with car audio, motor, speaker, radio, auto LED display screen, photovoltaic panel, electric fan, solar power monitor, navigator, GPS....
Note --- Positive pole and negative pole of input and output cannot be connected reversely..

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3D Printer Control Board Back EMF Protection Powerful 520Kb RAM USB Update Firmware ESP32 3D Printer Motherboard with WiFi for Serial Screen

SUPPORT VARIOUS SCREEN: This is a 3D printer main control board with onboard ESP32 wifi, supports for Marlin2.0 firmware, in addition to ordinary....
32 BIT MICROPROCESSOR: Built in ESP32 DOWD V3 chip, for Xtensa dual core 32 bit LX6 microprocessor, supporting clock frequency up to 240MHz.
POWERFUL AND VERSATILE: The main board adopt ESP32 WROOM 32U module, embedded dual core 32 bit high speed MCU, the clock is up to 240MHz. And....
8M BYTE CHIP: In addition, the module has a built in 8M byte Flash memory chip, which provides effective protection for more application scenarios.
BACK EMF PROTECTION: VEXP has designed a protection circuit for the back EMF generated by the stepper motor, which greatly reduces the damage to the....

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HUIQIAODS H11 H9 880 881 Fog Light Wiring Harness Socket Wire Connector with 40A Relay ON/OFF Switch Kits for Toyota GM Hyundai Accent Elantra Peugeot LED Work Lamp Driving Light Etc

♪ Good For Replacement fog lamps, Add-on fog lights, HID lights, LED daytime running lights, Driving lights, LED work lights, Off-road lighting kit.
♪ This H11 wiring harness kits included: 12V 40A relay module box, wiring harness w/ adapters, 30A safety fuse box, and 5 Pin LED indicator on/off....
♪ 8.5ft wiring harness: more than 8.5ft of wiring from the switch to lights, also is extendable, run the harness to your desired lighting location..
♪ Circuit Protection: Power relay-safety protection and conversion circuit. Blade fuse protects the circuit when overcurrent or short circuit....
♪ Pack include : 1 x fog light wire harness kit (fog light is NOT included).

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RICH SOLAR 40 Amp 12V/24V DC Input MPPT Solar Charge Controller with LCD Display Solar Panel Regulator for Gel Sealed Flooded and Lithium Battery Negative Ground

【Batteries】 Compatible with various deep cycle batteries: Sealed, Gel, Flooded, and Lithium..
【12V/24V】 Detect 12V or 24V DC system voltages automatically. Innovative MPPT technology with high tracking efficiency up to 99% and peak. Conversion efficiency of 98%..
【Protection】 Electronic protection: Overcharging, over-discharging, overload, and short circuit. Reverse protection: Any combination of solar module and battery, without causing damage to any component..
【Design】 Die-cast aluminum design for heat dissipation and the capability of measuring the battery's temperature and remote monitoring. Customizable charging voltages..
【Bluetooth】 RS232 port allows to communicate with the BT-1 Bluetooth module, which can pair with smart phone app..

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Large Current 50A H-Bridge High-Power Single-Channel Motor Driver Module Semiconductor Refrigeration

【H-bridge Driver Module】The drive uses a full H-bridge driver module full-bridge MOSFET driver chip and composed with very low internal resistance and high current. MOSFET H-bridge driver circuit, with strong drive and braking effect, signal isolation chip isolates motor drive effectively..
【Effective Protection】With the microcontroller PWM signal isolation, effectively protect microcontroller..
【Input Maximum】To achieve the motor forward and reverse rotation, two PWM input maximum 200kHz frequency..
【Fully Compatible】Power indicator is schematically clear. The power supply voltage 5V to 15V. 3.3V to 12V, PWM level is fully compatible. High current 50A..
【Warm Tips】Ffor your safety and protection of use, our product is tested to ensure trouble-free installation and performance, please rest assured to buy..

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UCTRONICS DC 12V Time Delay Relay Module for Smart Home, Tachograph, GPS, PLC Control, Industrial Control, Electronic Experiment, Arduino Robot

Max. Load Voltage: terminal NC is DC 30V or AC 250V, terminal NO is DC 28V or AC 125V.
Functions: Supports on delay and off delay modes, the delay time can be adjusted from 0.1s to 1h, the delay mode and delay time can be set by shorting or opening the jumper pins and rotating the potentiometer..
Self Protection: Built with protection against reversal diode, supports anti-reverse protection. NOTE: Please remove the jumper cap of S5 when controlling AC current or DC current voltages other than 12V, otherwise the module will be burned or will not work properly..
Applications: This module works as a switch with time delay on and off function, highly recommended for automotive circuit modification, and LED lights, DC motors, pump and smart home control system..

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HiLetgo MEGA2560 ATmega2560-16AU Sensor Shield Sensor Expansion Board V2.0 with Bluetooth SD Card APC220 Wireless RF Ultrasonic Sensor Communication Interface

This MEGA Sensor Shield V2.0 dedicated sensor expansion board assembly market a variety of advantages in one of the expansion board design, PCB Immersion Gold processing technology..
Board not only all digital and analog interface to the steering gear line order form extended out, but also ad hoc Bluetooth module communication interface, SD card module communication interface, APC220 wireless RF module communication interface, and RB URF v1.1 ultrasonic sensor interface, independent expansion a more easy and convenient..
For beginners, do not have to worry about cumbersome and complex circuit connection, will simplify this circuit sensor expansion board in the true sense, it can often be easily connected with the sensor..
A sensor requires only a general 3P sensor cable (regardless of digital cable and analog cable), complete the circuit connection, the preparation of the corresponding program downloaded to MEGA controller reads the sensor data, or receive wireless module back pass data through the arithmetic processing, the final easy to complete your own interactive works..
Sensor Shield allows you to connect to various modules like sensors, servos, relays, buttons, potentiometers..

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Electric Skateboard ESC Kit, 10S 36V Single Drive ESC Substitute Control Mainboard with Remote for DIY Electric Skateboard Longboard

Made of high quality chip and electronic components, single drive design can offer excellent and stable performance..
The solid structure of mainboard can greatly lengthen the service life. With remote receiver module, so it supports remote control..
The well-organized circuit board is easy to install, but needs professional skills..
This electric longboard skateboard control system has EMP control module with remote module, it can do as ESC do..
With over-voltage, under-voltage, overheating, over-current protection, safe and reliable to use, supports speed control, easy to use. With a LED indicator that displays signal status, speed modes, battery percentage..

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