IRF520 MOSFET Switching Module, 0–24 V DC

Features:

• Operating voltage: 0-24V DC
• Maximum load: 5A
• Switching frequency: 100kHz
• Connections: screw terminals
• Dimensions: 33x24mm

Applications:

• DC motor control
• Pump control
• Solenoid control
• Lighting control
• Control of other electrical devices

Usage:

The module is simple to use. Connect the power supply to the module, then connect the load to the module output. Control it using a microcontroller or another digital device. A simple digital output is sufficient: when set to 3.3 V or 5 V, the MOSFET turns on; when set LOW, the module switches off the load (or reduces the output voltage).

Package contents:

• 1 × 0–24 V IRF520 MOSFET module

Note:

The module has no overload protection. Make sure not to exceed its maximum load of 5A. Overloading may damage the module. (For loads above 1 A, please use a heatsink.)

Simple Arduino test code for the MOSFET module: (switching the MOSFET on and off every second)

Copy the code and test it directly in the Arduino IDE. No additional libraries are needed.

// Definujte pin, ku ktorému je pripojený MOSFET
const int mosfetPin = 9;

void setup() {
// Nastavený pin ako výstup
pinMode(mosfetPin, OUTPUT);
}

void loop() {
// Zapnutie MOSFET na 1 sekundu
digitalWrite(mosfetPin, HIGH);
delay(1000);

// Vypnutie MOSFET na 1 sekundu
digitalWrite(mosfetPin, LOW);
delay(1000);
}

Simple PWM code: 

This code gradually decreases and increases the MOSFET output voltage using PWM (pulse-width modulation) at 10-millisecond intervals. You can adjust the value 255 to your needs.

// Definujte pin, ku ktorému je pripojený MOSFET
const int mosfetPin = 9;

void setup() {
// Nastavte pin ako výstup
pinMode(mosfetPin, OUTPUT);
}

void loop() {
// Znižujte napätie postupne
for (int i = 255; i >= 0; i--) {
analogWrite(mosfetPin, i);
delay(10);
}

// Zvyšujte napätie postupne
for (int i = 0; i <= 255; i++) {
analogWrite(mosfetPin, i);
delay(10);
}
}

Wiring example: