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What causes a circuit board to burn?

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There are a variety of reasons why circuit boards can burn out, including:
1. Excessive voltage: When the voltage endured by the circuit board exceeds its rated voltage, various components will be burned out.
2. PCB failure: If the PCB board needs to work under extreme temperature conditions, it is very likely that the components will be burned. Several factors can cause a component to burn, including: the area around the component, the shape and size of the component, etc.
3. Environmental factors: When assembling electronic components, it is very important to control environmental conditions. For example, issues such as humidity, dust and heat in the room, accidental drops, etc. can also cause circuit boards to burn out.

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The reasons why the circuit board is burned are as follows:

1. The voltage is too high. When the voltage the circuit board withstands exceeds its rated voltage, various components will be burned out.

2. Environmental factors. When assembling electronic components, it is important to control environmental conditions. For example, humidity in a room can cause all kinds of problems. Likewise, dust and heat can affect PCB boards.

3. Human factors. Improperly manufactured or placed components can cause many problems. Examples include improper welding, chemical leakage, poor connectivity between layers, loose components, etc.

by (26.3k points)

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