Electronics Forum | Thu May 13 19:41:17 EDT 2004 | johnww
Hi Everyone, I want to use LEDs in an enclosed box for edge lighting etched glass. There are 15 LEDs in a box and they are set up in 5 series of 3 LEDs. The LEDs are 3.5V 20Ma 8000mcd. I've worked out that I need an 82 ohm resistor for each series
Electronics Forum | Tue Dec 13 14:55:12 EST 2005 | muse95
Your response is from the point of view of using a Bismuth solder with Pb plated leads. Samir's point of view is from Bismuth in the plating on the leads being used with a Pb solder. There is a very large difference in the amount of Bi that will en
Electronics Forum | Wed Jun 24 10:17:50 EDT 2020 | kylehunter
> Hi. Guessing that you are operational by now? If > not, consider to use BGA definition and use the > editor to define where the bottom side pads are > or are not. Just our 2 bits input. The Assembleon > X / Yamaha units are quite
Electronics Forum | Mon Jun 26 12:53:15 EDT 2000 | JAX
Armin, I don't think you will have any problems changing to 4.0 but why would you want to? Why change your system software and leave your platform software at an old rev.? Upgrading UPS will be far more benificial. More Vision opportunities, faster p
Electronics Forum | Wed Sep 21 08:43:46 EDT 2005 | kmeline
We are having problems with a 1210 cap moving as far as a 1/4 inch from its pads during reflow. We have verified the placement before reflow. They will tombstone some of the time. There are smaller and larger parts around this location and none of th
Electronics Forum | Thu Sep 06 21:55:36 EDT 2007 | duyhoang
We're running 3 CP3's but I think they doesn't meet Flexa. Flexa is only connected when CP3 has Version more than 6.9 . We only have ver.1.4 and 6.8. I really don't know what to do now. Anyone helps me?
Electronics Forum | Fri Nov 09 10:37:38 EST 2007 | devajj
We have started using QFN packages in large volume and are having problems with no-solders. We are using 6mil stencil with 1x1 paste print to pad. These also have thermal pads with thru vias that we reduce the stencil aperture by 1/4. Board also ha
Electronics Forum | Sat Jan 26 18:29:40 EST 2008 | mika
A picture with 1600 x 1200 pixels nearly 900KB! Well... I think SMTnet should maximize or standardize the pixel's or image size, like many newspaper do if you want to upload a picture... I rearranged this image to a 1/4 of its original size. Compare
Electronics Forum | Fri May 15 01:44:50 EDT 2009 | dilogic
Since UIC does not support older machines anymore, is there another way to upgrade our GSM1? We have an I-block hardware running OS2.11 and USOS 1.4.14. I would like to upgrade to USOS 3.xx, to be able to use Enhanced Product setup feature. Any hints
Electronics Forum | Tue Jul 24 17:54:14 EDT 2012 | tombstonesmt
Anyone placing any type of masking material die cuts with SMT equipment? We currently manually place a enormous amount of polymide 1/4 inch dots. Looking into automating this process. We already place 2d labels so doesn't seem to far fetched. Any sug
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