The 1 Channel 5V Relay Module is a reliable switching device designed to control high-voltage AC or DC loads using a low-voltage microcontroller signal. It acts as an electrically isolated interface between logic circuits and high-power devices, making it ideal for home automation, robotics, and industrial control. With its optocoupler isolation and easy-to-use design, it ensures safe and efficient switching for a variety of applications.
Technical Specifications
Core Specifications
Operating voltage: 5 V DC
Trigger voltage: 3 V to 5 V DC (compatible with 3.3 V and 5 V logic)
Relay type: SPDT (Single Pole Double Throw)
Load capacity: 10 A at 250 V AC or 10 A at 30 V DC
Trigger current: approximately 20 mA
Electrical & Physical
Optocoupler isolation for noise immunity and protection
LED indicator for relay activation status
Standard screw terminals for load connections
Signal input pin for direct microcontroller control
Module dimensions approximately 44 mm × 26 mm × 18 mm
Environmental
Operating temperature range: –40 °C to +85 °C
Suitable for indoor automation and industrial applications
Why Choose the 1 Channel 5V Relay Module
Provides safe switching of high-voltage loads with low-voltage logic
Optocoupler isolation protects sensitive microcontroller circuits
Compact design ideal for DIY electronics and professional projects
Critical Uses
Home automation for lights, fans, and appliances
Industrial control of motors and solenoids
Arduino or Raspberry Pi switching of AC and DC loads
Remote-controlled power systems
Pro Tips
Always connect the relay module’s ground to the microcontroller ground
Use proper insulation when working with high-voltage AC loads
Ensure the connected device’s current rating does not exceed relay limits
Package Includes
1 × 1 Channel 5V Relay Module