Any of the 1N400x series work well for this purpose.
I've slowly learned the lesson that as a very small kit provider that
it's often cheaper to use the same part in multiple kits even though it
may be over-rated for some applications because the increased volume
reduces the price, fewer stock
:54 PM
Subject: Re: [Elecraft] Can a 1N4007 Be an Effective Relay Snubber?
On Apr 8, 2009, at 2:22 PM, Jack Smith wrote:
The Cliff's Notes version is that the turn-on (note I said turn-on,
not turn-off) time of a 1N4007 diode is sufficiently fast to be a very
effective relay snubber
On Apr 8, 2009, at 2:22 PM, Jack Smith wrote:
The Cliff's Notes version is that the turn-on (note I said turn-on,
not turn-off) time of a 1N4007 diode is sufficiently fast to be a very
effective relay snubber.
Interesting! It's always true that experiment trumps theory.
Curious, though,
To answer, I hope definitively, the question is a 1N4007 power diode
too slow to be used as a relay coil snubber, I've updated my December
2007 diode turn-on time measurements with data taken this morning
showing the effectiveness of (a) no snubber; (b) 1N4148 snubber and (c)
1N4007 snubber
and no more problems!
73,
Sandy W5TVW
- Original Message -
From: Jack Smith jack.sm...@cliftonlaboratories.com
To: 'Elecraft' elecraft@mailman.qth.net
Sent: Wednesday, April 08, 2009 1:22 PM
Subject: [Elecraft] Can a 1N4007 Be an Effective Relay Snubber?
To answer, I hope
To answer, I hope definitively, the question is a 1N4007 power diode
too slow to be used as a relay coil snubber,
Just curious -- over the years, I've seen references to the main purpose of
the snubber diode being used; (1) to decrease the action time of the relay,
since the decaying flux of
The quick test I did today used a common 2N7000 MOSFET to switch a
physically small relay typical of those used in ham gear. I think this
is a reasonably common arrangement and I've used it in the past myself.
The turn-off voltage exceeds the 2N7000's maximum permitted source-drain
voltage of
jack.sm...@cliftonlaboratories.com
Subject: Re: [Elecraft] Can a 1N4007 Be an Effective Relay Snubber?
To: Paul Christensen w...@arrl.net
Cc: 'Elecraft' elecraft@mailman.qth.net
Date: Wednesday, April 8, 2009, 2:43 PM
The quick test I did today used a common 2N7000 MOSFET to switch a
physically small
Let's end this thread for now. I think we've pretty much beaten it to
death. ;-)
73, Eric WA6HHQ
Elecraft List Moderator
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Sent: Wednesday, April 08, 2009 4:11 PM
Subject: Re: [Elecraft] Can a 1N4007 Be an Effective Relay Snubber?
To answer, I hope definitively, the question is a 1N4007 power diode
too slow to be used as a relay coil snubber,
Just curious -- over the years, I've seen
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