Interesting. I found a datasheet for the APM2307, and although the
marking is M07*, it's also a P-channel "4.5V gate". Hmm. Thanks.
Bob

On Tue, Feb 2, 2016, at 12:17 PM, Charles Craft wrote:
> Maybe this helps. No luck finding a datasheet that matches the marking.
>=20
> http://www.aliexpress.com/item/APM2307-B22D-original-new-P-Channel-Enhanc=
ement-Mode-MOSFET-SOT23/32248715161.html
>=20
> APM2307 B22D original new P-Channel Enhancement Mode MOSFET SOT23
>=20
> -----Original Message-----
> >From: Bob Blick <bobblick@ftml.net>
> >Sent: Feb 2, 2016 2:18 PM
> >To: piclist@mit.edu
> >Subject: [EE] P-MOSFET marked B22D
> >
> >I have a couple hundred mosfets in SOT-23 package that are marked B22D.
> >I haven't been able to track them down. Only mosfets I can find with
> >B-number-number markings are from SinoPowerSemi but none of theirs have
> >a 22.
> >
> >What I've been able to discern from experimenting is that they are
> >P-channel, logic level, "4.5V" but definitely not 1.8 or 2.5 v logic,
> >because the gate threshold is about 1.3 volts at room temperature.
> >
> >Anybody come across something like this before? Looking for a datasheet,
> >mostly I'm curious about the gate voltage maximum for them.
> >
> >Definitely not AO3415A, which is what they were sold to me as :(
> >
> >Thanks!
> >
> >Bob

--=20
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