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Strange electronic symbol

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Thread Starter

sportsfan27

Joined Jan 29, 2009
43
I came upon another strange symbol. It looks like a box containing an NPN transistor symbol at one end and a diode symbol at the other. There are 2 arrows pointing from the diode symbol to the transistor symbol. The schematic I found this in says "CT324 EL817 Everlight." I searched these numbers at DigiKey.com and "CT324" is a non inverting line driver, and "EL817" is an op amp. I don't have a clue what this is. Thanks for any help.
 
KL7AJ

KL7AJ

Joined Nov 4, 2008
2,229
sportsfan27 said:
I came upon another strange symbol. It looks like a box containing an NPN transistor symbol at one end and a diode symbol at the other. There are 2 arrows pointing from the diode symbol to the transistor symbol. The schematic I found this in says "CT324 EL817 Everlight." I searched these numbers at DigiKey.com and "CT324" is a non inverting line driver, and "EL817" is an op amp. I don't have a clue what this is. Thanks for any help.
Click to expand...
That's an optoisolator
 
Audioguru

Audioguru

Joined Dec 20, 2007
11,248
Digikey doesn't sell much cheap stuff.
Look for these things at a datasheet site.
 
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