The SRD-05VDC-SL-C is a compact electromagnetic relay widely used for switching electrical loads in low-voltage control systems, such as microcontroller projects, home automation, and industrial equipment. Manufactured by Songle and other suppliers, this relay is valued for its reliable operation, ease of interfacing, and affordable cost, making it popular in hobbyist and professional applications alike.
This relay operates on a 5V DC coil voltage, drawing approximately 70–100 mA of coil current, making it directly compatible with microcontroller circuits (often via a driver transistor). It features a set of single-pole double-throw (SPDT) contacts, capable of switching loads up to 10A at 250V AC or 30V DC, allowing it to control both AC and DC devices. The relay provides good electrical isolation between the low-voltage control side and the high-voltage load side, enhancing safety in electronic designs.
Housed in a compact blue plastic case with standard THT (Through-Hole Technology) pin layout, the SRD-05VDC-SL-C is easy to mount on PCBs and widely used in relay modules for Arduino, Raspberry Pi, and other development platforms.
Overall, the SRD-05VDC-SL-C is a versatile and reliable relay that offers an effective solution for switching moderate loads in a wide range of electronic and electrical control applications.
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