Are these what you have?
http://antech.en.alibaba.com/product/60121850264-218398000/B22D_SOT23_Trans=
istor_electronic_component.html

No datasheet listed, but there is a web site and an email address. Maybe=20
they even work.

Good Luck.

Richard


On 2/2/2016 2:18 PM, Bob Blick wrote:
> 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
>

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