G5LA145DC General Purpose Relay, G5LA Series, DC 5V, 10A SPDT

Description

What it is

G5LA145DC is a power relay cube mounted on PCB, ideal for controlling electrical circuits. Its coil operates at 5 VDC and can handle currents up to 10A.

Features

• Series: G5LA
• Type: SPDT (Single Pole Double Throw)
• Coil Voltage: 5 VDC
• Maximum Current: 10 A
• Mounting: On PCB
• Power: No built-in power (check datasheet)

What it is for

The G5LA145DC is useful for controlling power electrical devices with Arduino or other microcontrollers. For example, it can be used to turn on and off lights, motors or other electrical loads.

Tutorial: How to use G5LA145DC

The G5LA145DC relay is ideal for controlling power electrical devices with Arduino. Useful for beginners and intermediates.

What you need

• Arduino UNO or compatible
• 5V power cable
• 1kΩ resistor
• Connection wire

Steps

1. 1. Mount the relay on a PCB or a protoboard.
2. 2. Connect the relay coil (pins 1 and 2) to a digital pin of the Arduino.
3. 3. Connect the resistor (1kΩ) between the power supply pin (5V) and the power supply pin of the relay.
4. 4. Connect pin com (3) to the GND pin of the Arduino.
5. 5. Connect pin NO (4) to a device you want to control.
6. 6. Connect pin NC (5) to GND to deactivate the device.
7. 7. Upload the following code to the Arduino.
8. 8. Check the datasheet for further details.

Example code

```
int relayPin = 2;

void setup() {
  pinMode(relayPin, OUTPUT);
}

void loop() {
  digitalWrite(relayPin, HIGH);
  delay(5000);
  digitalWrite(relayPin, LOW);
  delay(5000);
}
```

Mini project

Build an automatic lighting system. Connect an LED to a NO pin of the relay and control the LED with Arduino.

Common mistakes

• Do not use analog pins for the relay.
• Do not connect the coil directly to 5V.
• Check the maximum current of the device to be controlled.
• Do not use pin GND as ground for the relay.

Recommended accessories

• LED
• Resistor for LED
• 12V power supply cable for the device to be controlled
• PCB or protoboard

Frequently asked questions

Can I use a G5LA145DC relay with an Arduino Nano?
Yes, the Nano supports digital pins.

How long can the relay stay active?
Check the datasheet for activation and deactivation times.

Can I use a G5LA145DC relay to control 12V devices?
Check the maximum current on the datasheet.