How to Observe IGBT QM30DY-H

[parametric.ms]

I want to know how to check IGBT QM30DY in normal condition using Digital Multimeter?
What value should I use on DMM (Diode or Ohmmeter)?

C2E1 --- E2 ---- C1 ---- B1-E1 ---- E2-B2

between C2 (+) - E2 (-) =....... ohm ?
between C1 (+) - E1 (-) =....... ohm ?
etc

Thanks,
Andre

[Mariss Freimanis]

What are you trying to do? You are not very clear in your question. A good transistor (IGBT, MOSFET, bipolar) will read "open circuit" (100K or more with a multimeter) collector to emitter if it's an IGBT or bipolar device or drain to source if it's a MOSFET. A bad device will read 10 Ohms or less. Silicon (IGBTs, MOSFETs, bipolar NPN and PNP) invariably fails shorted.

Mariss

[p27182]

http://www.datasheetcatalog.org/data...on/mXutxyr.pdf

page 1 bottom right. that'd be your schematic with internal diodes indicated.
good stuff.

-pat