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madbeanpedals::forum

Projects => General Questions => Topic started by: andywragg on September 07, 2011, 02:02:22 PM

Title: reverse polarity protection diodes
Post by: andywragg on September 07, 2011, 02:02:22 PM
HI,

The Chunk Chunk has a 1N4004 as reverse polarity protection. Could I sub this with a 1N4001?

As I see it the difference is the voltage 50v (1N4004) as opposed to 30v (1N4001).

I cant get 1N4004 in UK.
Title: Re: reverse polarity protection diodes
Post by: jimmybjj on September 07, 2011, 02:21:59 PM
Yes.

http://www.diystompboxes.com/smfforum/index.php?topic=80151.0
Title: Re: reverse polarity protection diodes
Post by: gtr2 on September 07, 2011, 02:22:08 PM
yes  :)

Josh
Title: Re: reverse polarity protection diodes
Post by: andywragg on September 07, 2011, 03:27:44 PM
Thanks fellas
Title: Re: reverse polarity protection diodes
Post by: bigmufffuzzwizz on September 07, 2011, 07:11:30 PM
Going by what the poster on DIYSB's said, using a 1n4007 would provide enough protection to almost never blow that diode right?
Title: Re: reverse polarity protection diodes
Post by: stecykmi on September 08, 2011, 11:08:07 PM
you're not likely to EVER plug something into a pedal that would even come close to what the 4007 can block. it's really excessive.
Title: Re: reverse polarity protection diodes
Post by: oldhousescott on September 09, 2011, 04:11:13 AM
Except they're only rated for 1A continuous forward current so you could blow it with a really stout supply hooked up backwards, but most supplies with enough guts will also have some crowbar protection so it shouldn't ever really be an issue.
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