Interesting video, this Chinese diyer tested some metal power transistor bought from market, looked pretty bad, not sure genuine or fake
English subtitled, maybe AI generated,
English subtitled, maybe AI generated,
Nice to have a curve tracer handy! I'm thinking of building a a bipolar output transistor tester to test at a given bias current level. The Peak transistor tester is only doing tests at around 5mA which is inadequate.
Not sure I understood all what he was trying to convey in the video, but we can tell he did not bother checking the datasheet when he bashes the 2n3055 for its beta droop at high-ish current range, 1.5A and greater, as "serious wrong",
while the datasheet indeed predicts the behavior of the device shown on the tracer, a 50% or more decline in beta @ 3A vs @ 0.5A. Maybe he was marketing AP01N by demonstrating its superior performance in retaining current gain at high Ic range?
while the datasheet indeed predicts the behavior of the device shown on the tracer, a 50% or more decline in beta @ 3A vs @ 0.5A. Maybe he was marketing AP01N by demonstrating its superior performance in retaining current gain at high Ic range?
