Welding temperature:

1. The soldering iron temperature for welding patches, coding switches and other components is 343±10℃;

2. Welding color ring resistors , the soldering iron temperature for ceramic capacitors, tantalum capacitors, short-circuit blocks and other components is within 371±10℃;

3. The soldering iron temperature for repairing general components (including IC) is within 350±20℃;

p>

4. Repair power modules, transformers (or inductors), large electrolytic capacitors and large-area copper foil pads with thick pins. The soldering iron temperature should be 400±20℃.

5. The soldering iron temperature requirements for SMT, assembly and soldering inspection, and mobile phone production lines must be strictly in accordance with the temperature requirements in the production station inspection and soldering operation instructions;

6. Lead-free special soldering iron, The temperature is 360±20℃.

Extended information:

Under normal circumstances, weld according to the chip instructions. If it doesn't work, the temperature should be higher and the welding time should be shorter.

The temperature of the soldering iron should be a 15-20W low-power soldering iron.

Control the temperature of the soldering iron tip below 265℃. Use the soldering iron tip to heat and melt the solder joint with a small amount of solder. At the same time, add a small amount of ∮0.5-0.8mm solder wire. When the solder wire touches the soldering iron tip, it should leave quickly. Otherwise, too much solder will be added. Be very careful not to let the soldering iron touch the porcelain body of the chip.

Because the local high temperature of the porcelain body will cause rupture. Multiple welding, including rework, will affect the solderability and resistance to welding heat of the patch, and the effect is cumulative, so it is not appropriate to let the capacitor Repeated exposure to high temperatures.