SPDT 5V 10A Relay (5-Pin)

The SPDT 5V 10A Relay (5-Pin) is a versatile and durable electromechanical relay designed to switch electrical loads using a low-voltage control signal. With a 5V DC coil, this relay can be directly controlled by popular development platforms such as 🔗 Arduino, 🔗 ESP32, and 🔗 Raspberry Pi.

This Single Pole Double Throw (SPDT) relay features normally open (NO) and normally closed (NC) contacts, allowing for flexible control in both on and off states. Its 10A switching capacity makes it suitable for controlling lamps, fans, pumps, and other AC or DC appliances. It is a must-have component for automation, DIY electronics, and STEM education projects.

🔍 Technical Specifications:

• Type: SPDT (Single Pole Double Throw)

• Coil Voltage: 5V DC

• Switching Capacity: 10A @ 250V AC / 10A @ 30V DC

• Contact Configuration: NO + NC

• Pins: 5 (standard PCB mount)

• Coil Resistance: Approx. 70 ohms

• Trigger Current: ~70–100mA

• Mechanical Life: >10 million operations

• Electrical Life: >100,000 operations

• Mounting: Through-hole soldering

• Dimensions: Approx. 19mm x 15mm x 15mm

⚙️ Key Features & Benefits:

• ✅ High switching capacity with compact footprint

• ✅ SPDT design with both NO and NC terminals

• ✅ Compatible with 🔗 microcontrollers

• ✅ Ideal for automation and remote control applications

• ✅ Reliable switching of AC and DC loads

• ✅ Perfect for relay driver circuits and DIY kits

💡 Applications:

• Home automation systems

• IoT-based smart devices

• Power switching in appliances

• Alarm and security systems

• Robotics and embedded systems

• Academic & industrial electronics projects

• Smart home product development

• Relay-based logic automation

🔌 Microcontroller Compatibility:

This relay operates efficiently with 5V logic from 🔗 Arduino, 🔗 ESP8266/ESP32, STM32, AVR, and Raspberry Pi boards. Commonly used in conjunction with relay driver modules or transistor-based switching circuits.

⚠️ Precautions:

• Always use optocoupler-isolated relay drivers when interfacing with high-voltage systems

• Add a flyback diode across the coil to prevent voltage spikes

• Do not exceed the rated current/voltage for safe operation

• Ensure adequate PCB traces or wire gauge for load handling

• Keep circuits isolated when working with AC mains

📍 Available now at 🔗 ElectroWay — located in Johar Town, Lahore, your trusted source for electronics, automation modules, and educational kits for STEM learners, engineers, and developers.

🎥 External Learning Video:
How 5V Relays Work and How to Use Them (YouTube)

🔗 Helpful Links & Related Products:

• ESP8266 WiFi Modules

• Arduino Boards

• Microcontroller Accessories

• Relay & Sensor Modules