How to remove the relay on the circuit board


Circuit board relay is a miniaturized electronic contro […]

Circuit board relay is a miniaturized electronic control device, in which the circuit board makes the circuit miniaturized and intuitive, which plays an important role in the mass production of fixed circuits and optimizing the layout of electrical appliances. The relay has a control system (also called an input loop) and a controlled system (also called an output loop). It is usually used in automatic control circuits. It is actually a kind of "automatic switch" that uses a smaller current to control a larger current. ". Therefore, it plays the role of automatic adjustment, safety protection and conversion circuit in the circuit. As the saying goes, going up the mountain is easy and difficult down the mountain, and the relay is similar. It is relatively troublesome if it is easy to install and remove. Today I will explain how to remove the relay on the circuit board.

Steps to remove the Single Dual Coil Latching Relay on the circuit board:

1. For larger relays, remove a part of the tin sucker first, and suck out a part of the copper braid; separate the contacts until they are removed. Please observe the thermal changes of the copper-clad circuit on the circuit board.

2. If the pins are large or the PCB board is precise, it is recommended to remove the entire upper part of the relay until the contact end, and cut off the upper part of the relay pin with diagonal pliers. The purpose is to reduce heat dissipation and improve efficiency. It can be removed one by one. Poorization damage is small.

3. It is possible that the seat can be quickly replaced this time.

4. For low-value and easy-to-buy multi-leg components, I use the destructive removal method to protect the circuit board from stepping on. For this kind of relay, use a clamp to break it, and the integrated circuit uses a triangular or semicircular file to file the foot off. Use multi-limb thin copper wire to absorb tin through rosin, which needs to be kept, and it can also be removed intact.