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Old 29th June 2012, 03:25 PM   #1
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Default Need help finding Constant Current Diodes

I notice that Constant Current diodes are becoming unavailable thru the "major" US suppliers - Mouser / Digikey / Newark / Allied et al.

I need some 0.5 ma (E501/1N5291; 1.0 ma (J505/1N5298; 2.2ma (CR220/1N53??
4.7ma (J511/1N5313 or 1N5314).

Any suggestions - THANKS

Charles
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Old 29th June 2012, 03:29 PM   #2
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Hi,
Did you check EBAY?
Here it is a EBAY link
1N5314 MOTOROLA GOLD VINTAGE DIODE NOS RARE | eBay
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Old 29th June 2012, 03:33 PM   #3
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There's a company called Micross who seem to sell them:

Micross Components | Products
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Old 29th June 2012, 03:48 PM   #4
eyoung is offline eyoung  United States
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Old 30th June 2012, 07:26 AM   #5
RJM1 is offline RJM1  United States
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CENTRAL SEMICONDUCTOR still makes them and if you need 5000 check the link.
They do sell some values in single quantities.
Category : Semiconductors , Discretes , Diodes , Current Limiting Diodes - Future Electronics

Last edited by RJM1; 30th June 2012 at 07:40 AM.
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Old 1st July 2012, 06:12 PM   #6
Lavcat is offline Lavcat  United States
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I've purchased constant current diodes from Mouser in the last year or so. Is this something new?
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Old 2nd July 2012, 11:12 AM   #7
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Default Thanks for your responses

Mouser only has a few types remaining and the prices have gone up substantially ($6+)
Charles
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Old 7th July 2012, 10:19 PM   #8
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CPC in the UK stock a range of Semitec CRD-E series current regulating diodes - look on line:

www.cpc.co.uk

search for Order codes:
SC08501 through to SC08507 for the 7 components they have.
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Old 7th July 2012, 10:22 PM   #9
DUG is offline DUG  Canada
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How about using a J-fet and resistor...might do the job you need
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Old 9th July 2012, 08:54 PM   #10
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Default CCS diodes

Quote:
Originally Posted by DUG View Post
How about using a J-fet and resistor...might do the job you need
100% with you ;why spend $5 plus S&H fee while you can have it for $.3 .
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