High Power 5V 15A SPST-NC (1 Form B) Through Hole Relay for Fail-Safe Switching and Control Applications
The SRD 5V 15A 1 Form B high power relay is designed for reliable switching in applications requiring a normally closed (NC) configuration. With a 5V DC coil voltage, it is ideal for microcontroller-based systems such as Arduino, Raspberry Pi, and embedded electronics where low-voltage control is essential. This relay supports up to 15A contact current, making it suitable for controlling loads such as motors, lighting systems, power supplies, and safety circuits. The SPST-NC (Single Pole Single Throw - Normally Closed) configuration ensures that the circuit remains closed by default and opens when the relay is energised, making it highly effective for fail-safe and protection applications.
With a compact footprint of 19.2x15.6mm, this through-hole relay enables easy PCB integration while ensuring strong mechanical stability. It offers excellent electrical isolation between the control and load circuits, enhancing safety and reliability in electronic systems. The SRD series is widely used in automation systems, safety interlocks, IoT devices, and control circuits due to its stable switching characteristics and long operational life.
Key Features:
- Normally Closed Operation: SPST-NC (1 Form B) for fail-safe and protection circuits
- High Current Capacity: Supports up to 15A load current
- 5V DC Coil Voltage: Compatible with microcontrollers and low-voltage control systems
- Compact Size: 19.2mmx15.6mm for efficient PCB layout
- Through Hole Mounting: Ensures secure soldering and stable installation
- Wide Application Range: Ideal for automation, safety systems, and control circuits
- Reliable Performance: Long electrical and mechanical lifespan
- Electrical Isolation: Protects control circuits from high voltage loads
