Electronics Forum: smd transistor markings (Page 3 of 8)

programming SMD flash memory and SMD flash memory in microcontrollers before PCB assembly

Electronics Forum | Fri Jan 15 09:18:28 EST 2016 | whitewing

If you're using Microchip parts, Microchip can supply ready programmed (and marked) via Microchipdirect. Some distributors also offer programming services

unmarked chip resistors

Electronics Forum | Sat Oct 28 08:51:20 EDT 2017 | rvines1

The manufacturer I was having issues with was Panasonic. The parts we use were unmarked, but their catalog pages didn't make any mention of marking and included photos of marked parts. After 6 months of making various unsuccessful contacts with Pan

Re: Aperture sizes for printing SMD adhesive

Electronics Forum | Fri Feb 19 12:56:34 EST 1999 | Tony A

| Please could you suggest a recommended aperture sizes for | printing of smd adhesives. Any recommendations on stencil thickness as well as stencil finish will be appreciated. | Mark, talk to Irene Horvath at I Source Technical Services, Inc. Her

Solder Defects

Electronics Forum | Wed Oct 24 02:19:34 EDT 2001 | Leo Gapasin

We have been monitoring our solder defects at post-SMT, post-Wave, etc.in our plant. I want to compare our process performance to a "bench mark" for solder defects at post-SMT. The question I have is what is the "bench mark" for soldering defects in

Re: Apply glue with a stainless stell stencil

Electronics Forum | Wed Feb 16 09:30:11 EST 2000 | MARK ALDER

Please refer to the archives on SMTNET date 02/19/1999 on aperture sizes for printing SMD adhesives. Regards Mark Alder

SOT-23 Package Markings

Electronics Forum | Tue Dec 26 17:59:52 EST 2000 | Dan Dickey

I am in need in identifing these 2 components. I am new in the SMD world so bear with me. These are in a SOT-23 package. Need to idendify. 1\ C5D 2\ R2T 3\ R2X Thanks, Regards, Dan

Re: SOT-23 Package Markings

Electronics Forum | Fri Jan 05 07:19:12 EST 2001 | bing

I use this reference to check on SOT's. See if it any good for you. http://www.marsport.demon.co.uk/smd/smdcode.htm

Re: Help With Marking codes

Electronics Forum | Tue Dec 14 10:14:54 EST 1999 | Chris May

Tony, Quick update. Check out this website.Just came across it. http://www.marsport.demon.co.uk/smd/smdcode.htm Regards, Chris.

SMD ceramic capacitors dark spots

Electronics Forum | Mon Jul 23 11:02:56 EDT 2018 | mikedcmt

Thanks for your reply - parts in tape have similar markings - gets worse after reflow. ~20% have this issue. Units pass test no problem. Occurrence is random.

Re: Calculate SMD movement during reflow?

Electronics Forum | Wed Nov 03 20:02:44 EST 1999 | Anthony Winston

Well John here is the situation: I need to place an infrared transistor (optical element) with a tolerance of +/-.003", this is not a problem. A lens is positioned over the optical element and snapped to the PCB via three holes that have a toleran


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