The pin number arrangement of the quality 12v 5 pin relay is generally a pair of normally open and normally closed contacts with three legs in the shape of a product on one side. The middle is the common point. The multimeter measures that it is connected to one of the other two pins as a normally closed contact, and the non-connected one is a normally open contact; the other two pins are coil pins, and there is a resistance value during measurement of.

The quality 12v 5 pin relay is the most commonly used switch device in electronic products. Let us learn how to use a circuit in a circuit according to the needs of the project.

Before proceeding with the circuit driving quality 12v 5 pin relay, we must consider two important parameters of the relay. Once it is the trigger voltage, this is the voltage required to open the relay, which is used to change the contact from Common->NC to Common->NO. The quality 12v 5 pin relay here has a 5V trigger voltage, but you can also find a relay with a value of 3V, 6V or even 12V, so please choose one according to the available voltage in the project. Another parameter is your load voltage and current, which is the amount of voltage or current that the NC, NO or Common terminal of the relay can withstand. In our DC case, the maximum is 30V and 10A. Make sure that the load you are using is within this range.

The application of quality 12v 5 pin relay is often used in switching circuits. Used in home automation projects to switch AC loads, control (on/off) heavy loads at a predetermined time/condition, used in safety circuits, to disconnect the load from the power supply in the event of a fault, used in automotive electronic equipment, Used to control indicator glass motors, etc.