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What should I pay attention to when replacing the chip capacitors?

Source: FAQ Editor: PingShang Click: Release time: 2021-10-09 10:46:04

Let me tell you some things that need to be paid attention to when replacing chip capacitors:

1. The capacitor for timing function should be replaced with the original value as much as possible.

2. Polarized capacitors cannot be used instead of non-polarized capacitors.

3. Substitute chip capacitors cannot be lower than the original capacitors in terms of withstand voltage and temperature coefficient.

4. Different capacitors have their own characteristics. In general, as long as the capacity and withstand voltage meet the requirements, they can be replaced. However, in some cases, the replacement effect is not very good. For example, the high-frequency loss will be larger after replacing the high-frequency capacitor with a low-frequency capacitor. In severe cases, the capacitor will not have the corresponding function, but the high-frequency capacitor can replace the low-frequency capacitor.

5. In operation, the original damaged capacitor is generally removed first, and then the new capacitor is soldered. Capacitors with relatively small capacity are generally not polarized, but must not be reversed for polar capacitors.


The sharing is here, is it simple and easy to understand? More details about the specifications of SMD capacitors can be consulted online!