Diode help... HELP!

From: Richard Erlacher <edick_at_idcomm.com>
Date: Tue Feb 22 17:08:08 2000

Actually, germanium diodes, e.g. 1N43A, 1N270, etc, have a forward voltage
on the order of 0.32 volts. There are numerous SCHOTTKY diodes with
considerably lower forward voltage. Check the DigiKey catalog for possible
candidates. Their catalog lists forward voltage as a characteristic.

Dick

-----Original Message-----
From: Jack Noble <apple_at_cmc.net>
To: classiccmp_at_classiccmp.org <classiccmp_at_classiccmp.org>
Date: Tuesday, February 22, 2000 3:39 PM
Subject: Re: Diode help... HELP!


>Germanium diodes have the least amount of voltage drop while conducting
>(about .06 volts I think) and a popular one that should be readily
available
>is the 1N34 or 1N34A. The reason that diodes seem to act funny on an
>ohmmeter is because of the fwd voltage drop while conducting. The silicon
>diodes that you probably got at radio shack have a fwd drop of more than .5
>volts and will appear as a high resistance to your meter even though they
>are conducting. Hope this helps
>
>Noble
>-----Original Message-----
>From: Bill Sudbrink <bill_at_chipware.com>
>To: classiccmp_at_classiccmp.org <classiccmp_at_classiccmp.org>
>Date: Tuesday, February 22, 2000 1:44 PM
>Subject: Diode help... HELP!
>
>
>>Hi,
>>
>>Once again demonstrating my vast quantities of ignorance...
>>I need a diode which completely blocks current in one direction
>>and presents as little resistance in the other direction
>>as possible. I bought a fist full of little glass ones at
>>Radio Shack for 50 cents. On my Ohm meter, they show no
>>conductance in one direction and 1400KOhm the other way.
>>What do I need to get? RS (which is the only resource I
>>have available, I need them like _NOW_) has many different
>>kinds of diodes, ranging up to two dollars per pair.
>>
>>Thanks,
>>Bill Sudbrink
>
Received on Tue Feb 22 2000 - 17:08:08 GMT

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