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Old LED ratings? Answered

I bought a large box of what appears to be New Old Stock (NOS) of electrical parts at a garage sale.  In one box was a bunch of orange LED's and a piece of paper with the following written on it.

Ir=6nA
Uf=1.92V
C=1pF


Can anyone decode this for me?

Duane

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Youtalken2me

4 years ago

I have just started going through the box. I couldn't pass it up for $5.00. The seller told me the items belonged to his grandfather who had been in the navy. The box contains numerous switch and gauge panels from unk type of aircraft, numerous tubes and electronic parts and test equipment, and spiders. Lots of black widow spiders. The LED's I listed were out ov place in this box but were packaged in similar old boxes that obviously hadn't been opened in years. Thanks for the help

Duane

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Downunder35m

4 years ago

What is there to decode?
Led needs 1.92V and 6mA - assuming the 6nA is a typo as otherwise you would have high end ultra low current LED's.
1pF is the capacitance of the LED, although this value is rarely used these days.

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Downunder35msteveastrouk

Answer 4 years ago

True, forgot about that - makes me wonder about the quality of these LED's though as these days it is hard to find all these values.
Maybe even from a selected batch with all the same values for signage or similar...

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iceng

4 years ago

A simple lab 0-15V variable power supply wired to that led in series with a 4.7K resistor will answer a lot of questions. Just measure the current and the actual led voltage.