12V 12A 5-Pin SPDT Electromagnetic Power Relay (PCB Mount)

The 12V 12A 5-Pin SPDT Electromagnetic Power Relay (PCB Mount) is a high-performance electromechanical switching device designed to control high-voltage or high-current electrical loads using a low-power 12V DC control signal. It is widely used in automation systems, industrial equipment, power control circuits, automotive electronics, and microcontroller-based projects where reliable electrical isolation and switching are required.

The relay features a Single Pole Double Throw (SPDT) contact configuration with Normally Open (NO), Normally Closed (NC), and Common (COM) terminals. When the 12V DC coil is energized, the internal electromagnetic mechanism changes the contact position from the NC terminal to the NO terminal, allowing connected electrical devices to be switched ON or OFF safely. This design provides complete electrical isolation between the low-voltage control circuit and the high-voltage load, protecting sensitive electronic components.

Designed for PCB mounting, the relay uses a standard 5-pin configuration, making it easy to install in custom electronic circuits and relay modules. It is capable of switching loads up to 12A, making it suitable for controlling motors, pumps, fans, lighting systems, solenoid valves, and various AC or DC appliances. Its robust construction ensures stable operation, low contact resistance, and a long mechanical and electrical service life.

The 12V 12A 5-Pin SPDT Electromagnetic Power Relay is compatible with Arduino, ESP32, ESP8266, Raspberry Pi (using an appropriate relay driver circuit), PLCs, and other embedded control systems. It is an excellent choice for home automation, industrial automation, robotics, security systems, and power management applications that require dependable and efficient switching.

Features

• 12V DC coil operating voltage

• SPDT (Single Pole Double Throw) contact configuration

• 5-pin PCB mount design

• Switching capacity up to 12A

• Supports both AC and DC load switching

• Electromagnetic coil for reliable operation

• Electrical isolation between control and load circuits

• Fast switching response with low contact resistance

• Long mechanical and electrical life

• Durable and compact construction

• Compatible with Arduino, ESP32, ESP8266, Raspberry Pi (with driver), and PLC systems

Applications

• Home automation systems

• Industrial automation and control

• Motor and pump control circuits

• Lighting and appliance switching

• Robotics and embedded systems

• IoT and smart home projects

• Security and alarm systems

• Automotive electronic projects

• Power management systems

• DIY electronics and automation projects