recuperated transistors : igbt or mosfet ?

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Hi,

I recuperated a lot of semiconductors but I now face the identification  
of these item, principally mosfet and igbt.
How can I identify the one from the other with e.g. a dmm ?

Kind regards,

alpibucky

Re: recuperated transistors : igbt or mosfet ?
Quoted text here. Click to load it

You might look into the component testers comming from China.  They can  
be bought from about $ 9 to $ 20.

http://www.ebay.com/itm/LCR-T4-ESR-Meter-Transistor-Tester-Diode-Triode-
Capacitance-SCR-Inductance-JT1/302456912009?_trkparms=aid%3D555018%
26algo%3DPL.SIM%26ao%3D1%26asc%3D41376%26meid%
3D91c9150281a04f95a67e6fac10b92550%26pid%3D100010%26rk%3D5%26rkt%3D6%
26sd%3D322647109106&_trksid=p2047675.c100010.m2109



Re: recuperated transistors : igbt or mosfet ?
On 2017/10/08 10:44 AM, Ralph Mowery wrote:
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The design was done in Europe, if I am not mistaken, and shared online -  
and the Chinese are simply flooding the market with it with the help of  
their government making shipping worldwide essentially free (heavily  
subsidized) to weaken foreign suppliers/designers like the good folks in  
the US and Europe.

And, yes, I bought three for my staff, they do work well. Sigh,  
participating in the drive to the bottom...

John :-#(#

--  
(Please post followups or tech inquiries to the USENET newsgroup)
                      John's Jukes Ltd.
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Re: recuperated transistors : igbt or mosfet ?
wrote:

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For a first pass, Mosfets have a parasitic internal diode from drain
to source. IGBTs don't, unless an extra part is added internally.

You really should decipher the part markings, for real information on
the part, before redeploying it.

RL

Re: recuperated transistors : igbt or mosfet ?


Quoted text here. Click to load it

The basic IGBT is an n-channel MOSFET with a PNP emitter follower hanging  
from the drain, so that test should clear things up.  


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