Application of 5-pin relay in automobile

Automotive 5-pin relays are widely used to control car startup, preheating, air conditioning, lighting, wipers, EFI, fuel pumps, anti-theft, audio, navigation, electric fans, electric doors and windows, airbags, anti-lock brakes, suspension control And in automotive electronic instrumentation and fault diagnosis systems, its number is second only to sensors.

The main function of automobile 5-pin relay
1. Control strong current with weak current
2. Reduce the number of manual switches
3. To achieve the purpose of sequential control of electrical appliances
4. Protects smaller switches as well as thinner wires
The rated working voltage of the 5-pin relay is the most important technical parameter of the relay. When using a relay, the working voltage of the circuit (that is, the circuit where the relay coil is located) should be considered first, and the rated working voltage of the relay should be equal to the working voltage of the circuit where it is located. Generally, the working voltage of the circuit is 0.86 of the rated working voltage of the relay. Note that the voltage of the workpiece in the circuit must not exceed the rated working voltage of the 5-pin relay, otherwise the relay coil will be easily burned.