Can I use a J505 for class A bias?
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MaxW

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Yes, I have read http://tangentsoft.net/audio/opamp-bias.html and it was most helpfull and it even mentions the J500's which is the only thing I can find resembling a CRD available in NZ (from RS components).

Its part number is 283-479 and you can search for it here:
http://www.rsnewzealand.com
(cant link to it because of how the RS site works)

Specs:





"Constant current diodes in TO92 style cases, ideally suited for use as current regulators/ limiters, biasing elements and for use in linear ramp generators, staircase generators, etc."

"Maximum device dissipation: 360mW at 25�C (derate 3.27 mW/�C).
Tolerance: �20%
Operating temperature range: 55�C to + 150�C. "
 
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amb

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Yes, a J505 is a 1mA CRD. It can be used for opamp class A biasing.
 
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MaxW

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Quote:

Originally Posted by amb
Yes, a J505 is a 1mA CRD. It can be used for opamp class A biasing.


Thank you amb, I thought this was the case, just wanted to be sure
 
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