Songle SRD Series 9V DC Relay 10A 250V

The Songle SRD series relays are electromagnetic devices that are extensively utilized across a broad range of electrical and electronic applications. The following sections provide a comprehensive overview of these relays.

General Characteristics

• Manufacturer: Songle
• Series: SRD
• Nominal Current: Generally 10A
• Contact Configuration: 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 mounting

Technical Details

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

Usage Scenarios

• Industrial Control Systems: Used for machine and motor control
• Home Automation: Applied in lighting, heating, and cooling systems
• Security Systems: Employed in alarm systems and security doors
• Automotive Applications: Utilized for electric windows and headlights
• Electronic Projects: Commonly paired with Arduino and other microcontroller projects

Pros and Cons

Pros

• High Reliability: Durable and dependable due to its electromechanical design
• Wide Application Range: Suitable for both AC and DC loads
• Easy Installation: Can be conveniently mounted on PCBs

Cons

• Mechanical Wear: Mechanical components may wear out over time, potentially shortening the relay's lifespan
• Size: Might be larger compared to solid-state relays in some applications

Sample Product: SRD-09VDC-SL-C

• Coil Voltage: 9V DC
• Coil Resistance: 70Ω
• Nominal Current: 10A
• Contact Configuration: SPDT
• Operate and Release Time: 10ms and 5ms