Electronics Forum | Wed Jan 09 10:46:17 EST 2019 | rvines1
I've recently seen some TO-220 FETs that appear to be counterfeit parts that have had the marked area resurfaced and remarked with a false part number. I don't know much about semiconductor manufacturing, and I just want to know if there is a type o
Electronics Forum | Wed Jan 09 12:13:38 EST 2019 | robl
Yep, lots of ways to do it and lots of ways to check it. Immediately blacklist the supplier who sent them in to your business. Manufacturers don't need to do this. I've heard excuses such as remarked due to automotive qualification, but normally di
Electronics Forum | Thu Jun 30 05:08:41 EDT 2005 | saddo
wanna know part no. ! Marking on top-side "GVH", 6 pins very small IC. I guess it is a kind of switch for Tx/Rx. Anybody seen "GVH" ?
Electronics Forum | Mon Jul 04 08:24:48 EDT 2005 | stepheniii
GVH is unfortuneatly not listed here, but maybe you can figure out the manufacturer and get an answer from their web site. http://www.tkb-4u.com/code/smdcode/smdcodeG.php Stephen Olan
Electronics Forum | Thu Sep 06 15:41:23 EDT 2012 | rway
This appears to be a non-standard marking. Where did you find this? What is is out of? The 84 may be related to the cap value. Have you tried to measure it? I'm not sure about the "EG" part of it. This marking may be mfg specific, but the stand
Electronics Forum | Fri Sep 07 16:10:07 EDT 2012 | ericrr
HO what a BIG twit I am, for wasting your time (and a few hours myself trying many options on google). It is not EG84 it must be E684, (I will have another look next time I go back to work) you see I know the value, I thought it was a new secret co
Electronics Forum | Mon Mar 31 09:16:41 EDT 2008 | davef
What is changing the marking on the part? * Is flux residue coating the part to change the the way light reflects from the part surface? [Run a board with tape on the part, then remove the tape prior to AOI] * Is the heat of the oven changing the mar
Electronics Forum | Thu Jun 28 09:11:19 EDT 2012 | davef
I though this was a good article on picking a part numbering scheme and since you weren't getting any takes figured I throw this out there and maybe get a conversation going. Part number system: How to get started Filed under: Item and File Man
Electronics Forum | Mon Nov 12 19:37:38 EST 2001 | dennis
Thanks! dry erase does not come off easily with water. I have to use brush to remove marks. Thanks for your input anyway!
Electronics Forum | Thu Mar 30 22:35:29 EST 2000 | Bob
Most 0603 parts have three digits (Ex: 10K would be 103). Many parts will have no markings. All the 0603 parts we use are 1%.
