Songle SRD Series 12V DC Relay 10A 250V

The Songle SRD series relays are electromagnetic devices that are extensively utilized in a broad spectrum of electrical and electronic applications.

General Characteristics

• Manufacturer: Songle
• Series: SRD
• Nominal Current: Generally 10A
• Contact Configuration: Available in SPDT (Single Pole Double Throw) or SPST (Single Pole Single Throw)
• Coil Voltages: Offered in a variety of voltages including 3V, 5V, 6V, 9V, 12V, 24V, 48V DC
• Contact Voltage: 250V AC or 30V DC
• Size: Compact design, typically suitable for PCB mountin

Technical Details

• Coil Resistance: Depends on voltage (for instance, around 400Ω for 12V DC)
• Operate Time: Up to 10ms
• Release Time: Up to 5ms
• Dielectric Strength: 500VAC (coil to contact), 1000VAC (between contacts)
• Mechanical Life: 10 million operations
• Electrical Life: 100,000 operations (at nominal load)

Use Cases

• Industrial Control Systems: For controlling machines and motors
• Home Automation: Used in lighting, heating, and cooling systems
• Security Systems: Incorporated in alarm systems and security doors
• Automotive Applications: Used in electric windows and headlights
• Electronic Projects: Commonly used in projects involving Arduino and other microcontrollers

Pros

• High Reliability: Owing to its electromechanical design, it is durable and reliable.
• Wide Application Range: Suitable for both AC and DC loads.
• Easy Installation: Can be conveniently mounted on PCBs.

Cons

• Mechanical Wear: Over time, the mechanical components may wear out, potentially shortening the relay's lifespan.
• Size: In some applications, it may be larger compared to solid-state relays.

Example Product: SRD-12VDC-SL-C

• Coil Voltage: 12V DC
• Coil Resistance: 70Ω
• Nominal Current: 10A
• Contact Configuration: SPDT
• Operate and Release Time: 10ms and 5ms