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Re: Diode across contactors

Subject: Re: Diode across contactors
From: Mike Gregory <m.j.gregory@talk21.com>
Date: Mon, 6 May 2002 00:09:54
The 1N4000 series diodes show their peak inverse voltage rating (ie the max
'spike' they can take) according to the final digit. This gives the rating
in hundreds of volts: 1N4005 should stand 500v without failure. So the
1N4006 at 600v would be OK, but the 1N4001 to 1N4004 series might break down
in an application such as this where 1N4005 is recommended. Any higher
rating would be suitable, but the lower-rated diodes should not be placed in
series in an attempt to achieve a higher rating. Additional diodes in
parallel are unlikely to be a problem, provided they are each of adequate
rating.

Fly safely

Mike Gregory
Europa Club Safety Officer
m.j.gregory@cranfield.ac.uk

contactors

Quick question for all of you electronics wizards out there. Bob Nuckells
suggests a IN4005 diode accross the alternator relay. My question is will a
IN4006 work in its place? Unfortunately, this is the only one I could find
at my local electronics shop. Thanks 

Erich Trombley


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