Hobby Electronics Basics What semiconductor is this?

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Subject Author Date
What semiconductor is this? K `Sleep 05-10-06
Posted by K `Sleep on May 10, 2006, 5:41 pm
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Have a on-board power transistor shaped 3 lead semiconductor that I cannot
find via Google. This unit is on the output of a circuit that drives high
power relays, and is driven from a microprocessor thru a opto-isolator.

c812
tlc386b

--
Kim..the man with a girls name, and Frankensteins body



Posted by Pooh Bear on May 10, 2006, 6:13 pm
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K `Sleep wrote:

> Have a on-board power transistor shaped 3 lead semiconductor that I cannot
> find via Google. This unit is on the output of a circuit that drives high
> power relays, and is driven from a microprocessor thru a opto-isolator.
>
> c812
> tlc386b

Google suggests it's a triac ( you didn't try very hard ) . Sounds quite
possible given the opto-isolation.
http://www.ortodoxism.ro/datasheets/SGSThomsonMicroelectronics/mXuqtvx.pdf

Graham


Posted by Dorian McIntire on May 11, 2006, 9:28 pm
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> Have a on-board power transistor shaped 3 lead semiconductor that I cannot
> find via Google. This unit is on the output of a circuit that drives high
> power relays, and is driven from a microprocessor thru a opto-isolator.
>
> c812
> tlc386b
>

The c812 is short for 2SC812 which is an NPN 20V 100Ma transistor.

Dorian



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