Songle 3V 10A DC Relay

Songle SRD series relays are widely used electromagnetic devices in various electrical and electronic applications. Here is some general information about these relays:

General Features

Brand: Songle
Series: SRD
Nominal Current: Typically 10A
Contact Configuration: SPDT (Single Pole Double Throw) or SPST (Single Pole Single Throw)
Coil Voltages: Available in various voltages such as 3V, 5V, 6V, 9V, 12V, 24V, 48V DC
Contact Voltage: 250V AC or 30V DC
Size: Compact, typically designed for PCB mounting

Technical Specifications

Coil Resistance: Varies based on voltage (e.g., approximately 400Ω for 12V DC)
Operate Time: 10ms (maximum)
Release Time: 5ms (maximum)
Dielectric Strength: 500VAC (coil to contact), 1000VAC (between contacts)
Mechanical Life: 10 million operations
Electrical Life: 100,000 operations (at nominal load)

Applications

Industrial Control Systems: Machine and motor control
Home Automation: Lighting, heating, and cooling systems
Security Systems: Alarm systems, security doors
Automotive Applications: Electric windows, headlights
Electronic Projects: Commonly used with Arduino and other microcontroller projects

Advantages

High Reliability: Long-lasting and reliable due to its electromechanical design.
Wide Application Range: Suitable for both AC and DC loads.
Easy Installation: Can be easily mounted on PCBs.

Disadvantages

Mechanical Wear: Mechanical parts can wear out over time, potentially reducing the relay's lifespan.
Size: May be bulkier compared to solid-state relays in some applications.