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george a 5th December 2007 09:52 AM

What is a AN132 in a mixmaster?
2 Attachment(s)
Hi All

I'm asking if anybody knows what a transistor with the only marking being AN132

Is this a BC132 ? or even a 2n132 ?
I haven't been able to find much info that makes sense on the net. jsut references to some AD ic's

Can any body help me resurrect my wife's mixmaster?

Many thanks in advance



baldrick 5th September 2010 01:20 PM

This is a quite late response, but for what it's worth:

That device is a rotation monitor.
It needs to be right beside the rotating tail shaft stub of the armature motor otherwise the motor will run at full speed.
It appears to provide feedback to the rotation control circuit which in turn varies the output voltage through the triac output transistor by way of the potentiometer. The feedback device is designed to hold the rotation steady regardless of load.

Enzo 7th September 2010 12:23 AM

So maybe a Hall effect device?

DigitalJunkie 7th September 2010 12:31 AM


Originally Posted by Enzo (
So maybe a Hall effect device?

Sounds plausible to me,I notice that the component is marked "H1" next to it.

baldrick 7th September 2010 12:51 AM

This is probably an equivalent:

WSH132 datasheet, Pinout ,application circuits Unipolar Hall Effect Switch IC

pheonix358 7th September 2010 01:17 AM

After 2 1/2 years I think he either fixed it or tossed it! It's not likely he still needs the answer.


baldrick 7th September 2010 02:19 AM

True enough, but since I ran into a similar problem with a Mixmaster (actually it was a blown circuit trace and triac) I ran into this thread via google and felt compelled to provide an answer.

pjp 7th September 2010 03:46 AM

The stylised "A" is not part of the part number. Its the manufacturer's logo.
In this case, Allegro Micro.

Poke around on their website and look for a part marked N132.

This is a good place to "google" manufacturer's logos:

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