Hi everyone. I bought LT-20W-A from Aliexpress and I have been using it for a few years without any problems. But yesterday while working with 5% power, the component in the SOT-23-6 case suddenly burned. I cannot read the part number on it. Can someone who has this module tell me what is written on the component marked in the image so that I can replace it with a new one.
Congratulations and welcome to the forum.
Here is a new one only 7 in stock.
Unfortunately the component you need identified has no name in the amazonki store.
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I have a similar board. There are no markings visible but Im 99% sure that it is a Mosfet driver. as one pin goes direct to the mosfet gate. Pin 5.
There are many boards like this for sale on aliexpress. I hope you can trace the event to something that might have blown it like over voltage or reverse polarity.
Perhaps its time for a new laser but get one with a similar board.
It COULD also be just a random failure ..good luck
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