Ask a Question
Welcome to PCB Q2A. This is a Q&A community for PCB Q2A enthusiasts, providing professional Q&A on PCB assembly, PCB design, PCB testing, etc.


+1 vote
34 views

What causes a circuit board to burn?

by (12.1k points)

2 Answers

+2 votes
 
Best answer

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.

by (26.6k points)
selected by
+1 vote

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)

Related questions

+1 vote
1 answer 54 views
+1 vote
3 answers 41 views
+1 vote
6 answers 87 views
+1 vote
1 answer 27 views
27 views asked Nov 9, 2023 by PCBManufactures (12.1k points)
+1 vote
2 answers 40 views
40 views asked Nov 16, 2023 by PCBManufactures (12.1k points)
+1 vote
1 answer 58 views
+2 votes
1 answer 43 views
+1 vote
1 answer 36 views
+1 vote
2 answers 38 views
+1 vote
2 answers 38 views
+2 votes
1 answer 40 views
+1 vote
1 answer 32 views
+1 vote
2 answers 48 views
+1 vote
3 answers 41 views
+1 vote
1 answer 67 views
+1 vote
1 answer 47 views
+1 vote
2 answers 30 views
30 views asked Oct 11, 2023 by PCBManufactures (12.1k points)
+1 vote
3 answers 38 views
38 views asked Oct 11, 2023 by PCBManufactures (12.1k points)
+1 vote
1 answer 30 views
30 views asked Oct 11, 2023 by PCBManufactures (12.1k points)
+1 vote
3 answers 35 views
+1 vote
1 answer 48 views
+1 vote
2 answers 44 views
44 views asked Oct 11, 2023 by PCBManufactures (12.1k points)
...