Vulnerable component is installed in the welding process, heat or contact with electric iron is often caused by damage to the components, for example, organic casting components, MOS integrated circuits. Vulnerable components before soldering to carefully prepare the surface clean, tin and other preparatory work, Welding Electrodes, avoid prolonged repetitive hot welding, soldering iron tip and select the appropriate temperature to ensure a successful welding. In addition, less flux to prevent the intrusion of flux components of electrical contact points (eg relay contacts). MOS integrated circuits using the best energy storage welding electric iron, electric iron to prevent leakage and damage to the IC weak. As the IC lead pitch is very small, to choose the right tip and temperature, to prevent the connection between the tin-lead. Best to welding to welding circuit, output, power supply terminal, then solder the input. For those who are particularly sensitive to temperature components, you can clamp the clip on the element of water dipped in ethanol (alcohol) and cotton balls to protect the roots of components, so that the heat spread as little as possible on the components.

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