Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => AmpTools/Tech Tips => Topic started by: mark_enger on October 02, 2009, 07:32:15 pm

Title: diodes
Post by: mark_enger on October 02, 2009, 07:32:15 pm
  Is there a way to check the capabilitys of a diode by the numbers on them?   I have a bunch and i need some for a ss recto id like to use what i have if i can some are labled in4003 any info would help mark
Title: Re: diodes
Post by: PRR on October 02, 2009, 08:51:27 pm
> labled in4003

1N4003 (that's a "one").

Google it.
Title: Re: diodes
Post by: mark_enger on October 02, 2009, 09:58:23 pm
      same as 1n4007??? cool i got a bunch
Title: Re: diodes
Post by: PRR on October 03, 2009, 12:17:48 am
> same as 1n4007???

No, 1N4003 is not the same-as 1N4007.
Title: Re: diodes
Post by: Shrapnel on October 04, 2009, 02:12:46 am
Mark,

current rating is the same in the 1N400x series (1A), peak inverse VOLTAGE rating is different. 1N4007 is 1000PIV, 1N4003 is less. (400PIV?, don't quote me as being spot-on without checking first.)
Title: Re: diodes
Post by: mark_enger on October 04, 2009, 04:17:43 pm
300v i beleave they upped to 600v or 1000v for just general uses i sure wish i had a way to identify these diodes         mark
Title: Re: diodes
Post by: sluckey on October 04, 2009, 05:27:28 pm
Why not quit guessing and do as PRR suggested? No one has mentioned the correct PIV rating for a 1N4003 yet.
Title: Re: diodes
Post by: Shrapnel on October 05, 2009, 10:45:18 pm
Quote from: Shrapnel on October 04, 2009, 02:12:46 am
current rating is the same in the 1N400x series (1A), peak inverse VOLTAGE rating is different. 1N4007 is 1000PIV, 1N4003 is less. (400PIV?, don't quote me as being spot-on without checking first.)

Ok, I went and looked it up, everything I saw pointed to 200PIV. (LOL... I was in error, I'm glad I stated the "don't quote me as being spot-on without checking first.")

Just for those who are curious, after searching for "1n4003 specs" I found this:

http://www.nteinc.com/specs/original/1N4001_07.pdf

Specifies ratings for 1N4001 thru 1N4007.  PIV (RMS & DC), Current (Surge & Average), etc.