My Chinese phone usb charger has gone.
I opened the lid to repair it, and this is how it looks like (picture below).
Actually how it looked like after I removed Q1 for testing.
I suppose it has been gone. I checked with the multimeter and all pin combinations are open. And since both transistors were named as Q1 so I removed the second transistor and ensure it's a actually what I think (NPN transistor). But the problem is these two transistors are not identical in their label. I think originally this was designed as identical but later customized it in a later review.
So is it safe to assume that it's also NPN transistor?
This is the transistor that needs to be replaced. And it's a 13001 S 8D, and the second transistor is , S9014 C331.
What I want to figure out is an alternative.
This transistor is available on ebay.
Could somebody please recommend me a equivalent transistor for this?
Possibly a 1250 mW 600 V one.
If I just put some of those C945 what will happen?
There are no schematics available on this.
–Thanks in advance–
Best Answer
To be as close to the original equipment, I recommend that you should buy the replacement transistor from ebay, it is not that expensive. As you are not greedy, the price should be ok and you get the joy of replacing it yourself.
Joy of fixing your own charger is priceless. Happy holidays.