Ummmmmm...... Houston, you may have a problem. It falls into this category, and all logical differands will be CAP LOCKED. IF you don't conformal coat this product AND IF this product has a life of more than 5 years AND IF this product is subjected to vibrations as spelled out in varous UL tests you have a problem. OR IF you don't expose this product to anything BUT 50-80F and the product never is exposed to extreme humidity AND you can guarantee the product won't be severly vibrated OVER TIME.... you're okay. I wish I could dislose more but 2-4-6-8 everyone likes to litigate (If you get my drift...) Mark Ross ----- Original Message ----- From: Stephen R. Gregory To: [log in to unmask] Sent: Monday, August 13, 2001 2:40 PM Subject: [TN] 6-pin DIP Optocoupler problem... Hope you all are having a joyous Monday like I am... Got pulled over by one of the inspectors this morning because we have this little 6-pin DIP optocoupler that only goes about 65-per board. On some of the parts we're seeing exposed copper up on the shoulder of the leads as it comes out of the body. Go to: http://www.stevezeva.homestead.com/index.html and take a peek... What's kinda' strange is that this only happens on the pin-1 side of the part. I've determined that we're getting the parts in like this...I found some of the problem parts in tubes that we haven't done anything to yet... In looking really close at the parts, there seems to be some sort of film coming out of the body that covers the shoulders and prevents the leads from plating fully (the picture is on the page as well)...it's almost like some sort of thin plastic sheet...or could it be an adhesive preform that bond the two halves of the part together? (I don't have a clue how these parts are made). Anyways, should I worry about these parts? There's some people here that's worried about the exposed copper (here we go again...) and want to touch it up. I feel that there really isn't a problem because it's so high up the lead that it shouldn't hurt anything....if I were concerned about anything, it would be about that stuff that is coming out the body of the part... The part seems to work fine, we ICT the boards, and do a ambient power-on burn in for 24-hrs...everything is okie-dokie. This is a class-2 board by the way. Thanks again, and have a lovely Monday...hehehe -Steve Gregory-