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- Users: babawushika
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BT139F triac replacement
Can I replace BT139F with BT137F?- babawushika
- Post #6
- Forum: Circuit design
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BT139F triac replacement
Thanks-do you know a replacement for BT139F?- babawushika
- Post #5
- Forum: Circuit design
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BT139F triac replacement
It has to be - it had worked fine in many previous years in much hotter days.- babawushika
- Post #3
- Forum: Circuit design
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BT139F triac replacement
Hi everyone, I used to design PCBs, but it was 15 years ago. Now I am in IT. I had a deducted evaporative cooling system. It has a PCB controller. Starting this summer (in Australia), when the temperature is not too high, it works fine. When it is really hot, it shuts down and the water valve...- babawushika
- Thread
- Replies: 6
- Forum: Circuit design
