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Part Number Help - MO305512

andytspark

May 8, 2012
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May 8, 2012
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Hi

Has anyone any idea what a MO305512 is it looks like as standard three pin transistor in a TO220 package however it is not a 2N3055.

It has been stripped out of a faulty drill speed controller.

Any assistance would be very geatfuly apprecaited.

Andy.
 

shrtrnd

Jan 15, 2010
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Jan 15, 2010
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3,876
How old is this thing?
I found a reference to a Fairchild Device, (That is no longer listed on their website), and a reference for a '3.3V/2.5V/1.8V In-System Programmable Super-FAST High Density PLD.'
My guess would be it's a Fairchild TO-220, but like you, I couldn't easily find any data
on it.
Good luck getting a line on finding a replacement.
 

duke37

Jan 9, 2011
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Jan 9, 2011
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5,364
This is possibly a triac. Is it fed with a diac (looks like a diode).
 

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
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Jan 21, 2010
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Is it a mains operated device, or a battery operated device?
 
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