Diode part number - Page 1
Forum section: electronics / projects

author: crazyjim30
author_rank: Contributor
timestamp: February 09, 2016, 10:13:41 pm
content: I have a bag of diodes marked GPD025. I've checked several datasheet sites, and I've come up with nothing. The diodes were made by General Instrument and there is a manufacture date of 2000 on the bag. Does this part number look familiar to anyone? If not, does anyone know who currently owns GI so I can contact the manufacturer and find the datasheet?Sent from my SM-G900V using Tapatalk

author: Vgkid
author_rank: Super Contributor
timestamp: February 10, 2016, 12:27:14 am
content: What package are they in? Through hole/smt.

author: crazyjim30
author_rank: Contributor
timestamp: February 10, 2016, 12:39:01 am
content: Through hole. They came 500 to a bag in ESD shielded bags.Sent from my SM-G900V using Tapatalk

author: edavid
author_rank: Super Contributor
timestamp: February 10, 2016, 12:46:15 am
content: It went GI -> General Semiconductor -> Vishay.

author: Vgkid
author_rank: Super Contributor
timestamp: February 10, 2016, 03:24:55 am
content: Post up some pics of the diode.

author: crazyjim30
author_rank: Contributor
timestamp: February 10, 2016, 11:45:42 am
content: My apologies for the delay in posting pictures. Here they are. One of the packaging and one of the diode. They appear to be marked with the code BD301 or B0301. I need new glasses.Sent from my SM-G900V using Tapatalk

author: Tandy
author_rank: Frequent Contributor
timestamp: February 10, 2016, 11:50:26 am
content: They look like old rectifier diodes but is the code printed on the diode itself, the same as on the bag?

author: Alex Nikitin
author_rank: Super Contributor
timestamp: February 10, 2016, 12:58:10 pm
content: I would hazard a guess that diode possibly is a version of GP02-25 (2.5kV 250mA) in a different package.CheersAlex

author: crazyjim30
author_rank: Contributor
timestamp: February 10, 2016, 02:43:04 pm
content: The code on the diode is different than what's on the bag.Sent from my SM-G900V using Tapatalk

author: Tandy
author_rank: Frequent Contributor
timestamp: February 10, 2016, 03:26:17 pm
content: Ooops yes I missed that bit.My guess is that the code on the bag is just an internal reference used by the previous owner i.eGeneralPurposeDiodes 25. In other words these diodes are stored in bin number 25 with the general purpose diodes. The actual code on the diode will probably identify it.It could be an older version of thesehttp://www.onsemi.com/pub_link/Collateral/MBD301-D.PDFI suppose.

author: xmitman
author_rank: Newbie
timestamp: August 15, 2018, 04:46:07 pm
content: Hi crazyjim30,Did you ever figure out the specs for this diode? I have several thousand of the same diodes. The actual diodes are marked B03GI. the bag is marked GPD025.

author: james_s
author_rank: Super Contributor
timestamp: August 16, 2018, 05:15:43 am
content: Have you tried measuring the forward drop? They look like HV diodes I've seen in HeNe laser power supplies. Those usually have a forward drop of ~5V.

author: Wolfgang
author_rank: Super Contributor
timestamp: August 17, 2018, 11:43:09 am
content: Just a wierd idea - could they come from Germanium Power Devices (GPD) ?

author: edavid
author_rank: Super Contributor
timestamp: August 17, 2018, 02:51:25 pm
content: Quote from: Wolfgang on August 17, 2018, 11:43:09 amNo, the bag says they were made by GI = General Instrument