SD2942W

Excellent

June 14 paid the order, July 4 received by mail! I'm amazed at you. Always would!

Gayet güzel

The seller is good. The thyristors from the past order at the top are very good. 1. the crystal area is 25 mm2 5*5mm, which can be seen in the photo of accidentally burned typist. 2. have the marking of the IR firm which they are to be produced. 3. copper lining. 4. withstand a pulse current of 250A (voltage 450v) with a duration of 1 ms, tested by discharge capacity of 300 UFC per load, using an oscilloscope and shunt. (no more could not check there was no possibility). Previous batch original 100%! !!!!!!!!!!!!! A little more came this time. 1. the shape of the substrate is other (bottom row on the photo) 2. no IR engraving. 3. the body thickness of to-247 is less than the previous one. 4. The substrate is completely Copper (not magnetized as the previous batch), I will check for the pulse current supplement, but obviously it is something else. They may be as good, but it's not exactly.