hi, any body know how to test a 2SD1525 darlington transistor , with a digital multimeter ? thanks, mark k
testing a 2sd1525 darlington ?
Sep 07, 2007
4 Replies
"mark krawczuk"
** See:
formatting link
See diagram called " Equivalent Circuit" .
With your DMM on ohms, testing from B to E in either direction should read
2100 ohms ( +/- 15%).With your DMM on " diode test", the C- E diode should tests like any silicon diode with a very high resistance ( Mohms) in the reverse direction.
If all that is OK, the devise is likely OK.
Unless you bought a fake.
....... Phil
hi, thanks, mine is buggered, it came outa a fan speed controller from a car, in one test it measured something like 35 million ohms, and the otehr way 7 million ohms.
any idea where i can get a replacement , dick smith and jaycar dont have anything. mark k
"mark krawczuk"
** An auto wrecker - for another controller.Not even Farnell have a similar part to the 2SD1525.
....... Phil
Set up a pair as a darlington configuration?
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