UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio and TV Service Data

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > General Vintage Technology > Components and Circuits

Notices

Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets.

Closed Thread
 
Thread Tools
Old 16th Apr 2014, 5:16 pm   #1
McMurdo
Dekatron
 
McMurdo's Avatar
 
Join Date: Jun 2009
Location: Staffordshire Moorlands, UK.
Posts: 5,263
Default Identity of component

Hello, does anyone know what this is please?

It seems to be a unidirectional TVS, but can't be sure. It's fitted in part of a SMPS that provides a supply to some 24V fans.
Attached Thumbnails
Click image for larger version

Name:	DSC00819.jpg
Views:	171
Size:	137.9 KB
ID:	91619  
__________________
Kevin
McMurdo is offline  
Old 16th Apr 2014, 5:33 pm   #2
camallison
Heptode
 
camallison's Avatar
 
Join Date: Feb 2013
Location: Yarm, North Yorkshire, UK.
Posts: 535
Default Re: Identity of component

Could this be it? http://www.ic-on-line.cn/search.php?...07l&stype=part

Colin

[EDIT - datasheet http://www.ic-on-line.cn/view_online...7l_4556929.pdf ]
camallison is offline  
Old 16th Apr 2014, 6:32 pm   #3
cmjones01
Nonode
 
Join Date: Oct 2008
Location: Warsaw, Poland and Cambridge, UK
Posts: 2,669
Default Re: Identity of component

My vote goes for this:

http://www.vishay.com/docs/94181/30bq100p.pdf

and it looks convincingly like I'd expect a 3A Schottky rectifier to look, too.

Chris
__________________
What's going on in the workshop? http://martin-jones.com/
cmjones01 is offline  
Old 16th Apr 2014, 9:52 pm   #4
Radio Wrangler
Moderator
 
Radio Wrangler's Avatar
 
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 22,803
Default Re: Identity of component

How about a Polyswitch, if it's in series.... but the end marking argues against that so the unidirectional TVS looks best so far

David
__________________
Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done
Radio Wrangler is offline  
Old 16th Apr 2014, 11:45 pm   #5
McMurdo
Dekatron
 
McMurdo's Avatar
 
Join Date: Jun 2009
Location: Staffordshire Moorlands, UK.
Posts: 5,263
Default Re: Identity of component

I think I'm with Chris, a 3A schottky. I don't think an inductor would have a polarity bar.

The V3J is the giveaway. I was googling P807L and getting nothing with those device markings.

edit: after research: P807L is a Plant & Date code.

3 = current rating (3A)
J = voltage code (J=100V)

I'll fit one and report back if it works.
__________________
Kevin

Last edited by McMurdo; 17th Apr 2014 at 12:05 am. Reason: added code meaning
McMurdo is offline  
Old 24th Apr 2014, 12:07 am   #6
McMurdo
Dekatron
 
McMurdo's Avatar
 
Join Date: Jun 2009
Location: Staffordshire Moorlands, UK.
Posts: 5,263
Default Re: Identity of component

Just to say thanks for everyone's help, new diode fitted and all working
__________________
Kevin
McMurdo is offline  
Closed Thread

Thread Tools



All times are GMT +1. The time now is 3:54 pm.


All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at https://www.vintage-radio.net/rules.html.
Failure to heed this warning may result in death or serious injury to yourself and/or others.


Powered by vBulletin®
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Copyright ©2002 - 2023, Paul Stenning.