Electronics Forum | Mon Nov 07 16:34:55 EST 2005 | CW
If I am putting chip capacitors on a .063 FR4 board, what size package should we stay away from to avoid cracking? If I use 2 mil copper on the outside layers of a PCB, am I limited to what pitch of parts I can use? Specifically, will using 0603
Electronics Forum | Fri Nov 11 04:06:46 EST 2005 | arnold
we are manufacturer of molded type transformer. we have a trim and form process and its damage the pins of our units. the TIN insulation was being damage so we decide to immediately solder (wave soldering) the units to avoid oxidation. my question is
Electronics Forum | Fri Nov 18 08:19:41 EST 2005 | Rob
Thanks for that. It's definitely a tricky one, with lots of yet to be confirmed exemptions. It's particularly confusing with this type of product as it is said to be up for exemption due to lead in the glass of the erase window. However, does this
Electronics Forum | Tue Dec 06 16:20:48 EST 2005 | jsloot
Does anyone have a list of SMT components with their weights? For instance, a PLCC64 pin = X grams. I am not even sure if such information is really valid but it would be interesting to know when developing a reflow profile for convection ovens on a
Electronics Forum | Wed Dec 21 08:30:13 EST 2005 | jax
"aj" you should find your way to a training class. The measurement is from the zero point of the tray feeder( almost always the feeder slot pin giude that the center guide of the tray holder hits...located in the machine ). It is not the same as nest
Electronics Forum | Wed Jan 25 23:08:09 EST 2006 | nick
I'm having trouble identifying a Motorola Optocoupler. It is a 6 pin thru hole device with the following marking;"SOC839A". It also has the Motorola logo on it. I beleive it is a MOC8XXX part. Is there any way to confirm the exact P/N? Thank you.
Electronics Forum | Wed Feb 01 18:11:43 EST 2006 | Chris
I wonder if they are concerned about getting chemicals trapped in the tented vias. If the tented vias have pin hole openings or even larger openings, chemicals from the ENIG process could become entrapped in the via holes and not washed away in the
Electronics Forum | Tue Feb 28 12:34:12 EST 2006 | pr
Gel flex is crap! If you put enough in to actually support the board, it bows. Apparently MPM knows this because they include hard pins with the set (kinda defeats the purpose huh)! I trialed the grid-lok and it worked fine and operators loved it. Th
Electronics Forum | Wed Feb 22 16:55:04 EST 2006 | mark
Hi, We are not using vaccum caps. The support pins for both printers is the same ande cover all board (components only on Top side of the PCB). I will check snap-off (right know setting 0.2-04. mm/s). I also suspected poor gasketing but clamps are o
Electronics Forum | Fri Mar 17 14:45:47 EST 2006 | corrale
Hi, I need a new sprocket wheel with larger pins. I have the Lavezzi 4mmm pitch but my carrier tape skip holes. Do anyone know a place where to find this types of sprockets? How do I look for them. I don't want chain type. Thanks.
