BOSCH Part #1012 - Coil Drive Transistor

[944 at technologist.com]

Many Motronics use BOSCH Part #1012 as its coil drive transistor. It is a
"selected" or "special" part for some reason? It appears to be just a NPN
Switching Transistor. Nothing special??????

It is probably "selected" for a low VCEsat. This reduces the internal power
dissipation on the transistor. Maybe speed "selected" too? Maybe a
substitute does not have to be so special? Has anyone put it on a curve
tracer or have data on it's specifications?

What substitutes have others been using for this part? As usual, thanks in
advance....

FR Wilk
944 at technologist.com
8Þ



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