What is the Function of an Automotive Relay?

[Sebastian]

The function of an automotive relay is to control the magnitude and switching of electric current. Below is a detailed introduction to automotive relays: 1. An automotive relay is an automatic control device where the output undergoes a sudden change when the input (electricity, magnetism, sound, light, or heat) reaches a certain value. This type of relay is capable of switching high load power and has high impact and vibration resistance. An automotive relay consists of a magnetic circuit system, contact system, and reset mechanism. 2. Whenever possible, use no-clean flux for soldering and avoid cleaning the relay as a whole. Prevent cleaning agents from entering the relay, which could cause failure. Ultrasonic cleaning is prohibited to avoid cold welding of contacts, breakage of enameled wires, or other structural damage caused by ultrasonic energy. After cleaning and drying, ventilation should be performed immediately to bring the relay back to room temperature. Sometimes, to ensure the moisture resistance and high insulation of the circuit board, it is necessary to apply a protective agent to the circuit board. Choose a soft, silicon-free adhesive for this purpose, and ensure the coating process avoids creating negative pressure in the relay, which could draw in the protective agent.