I have faulty High Powered Battery Fence Energiser PCB.
On the circuit board there is a diode case component with wide black band in the middle marked as Unknown component on the picture, linked with S2800D Gate. I measured unknown component across with multimeter and it is in 'Open' state. Can it be faulty zener diode? If yes, how then to find the right value without circuit diagram ?
Can somebody help me to identify unknown component on the circuit board?
On the circuit board there is a diode case component with wide black band in the middle marked as Unknown component on the picture, linked with S2800D Gate. I measured unknown component across with multimeter and it is in 'Open' state. Can it be faulty zener diode? If yes, how then to find the right value without circuit diagram ?
Can somebody help me to identify unknown component on the circuit board?
An externally hosted image should be here but it was not working when we last tested it.
It is actually a Diac. Commonly used in domestic light dimmers and timers.
See DIAC - Wikipedia, the free encyclopedia
See DIAC - Wikipedia, the free encyclopedia
Diacs go short circuit when they fail.
For most failures that is correct, but if there is a lot of current they can blow open.
For most failures that is correct, but if there is a lot of current they can blow open.
They glass usually breaks in that case and it is obvious.
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