Electronics Forum | Wed Oct 01 15:24:55 EDT 2014 | horchak
are you trying to lengthen or shorten the lead length? Lengthening the amount of lead being cut off and going into the scrap tube will shorten the lead length. Lead length is pretty much determined by the down stop setting on the insertion head, the
Electronics Forum | Wed Jan 31 01:41:00 EST 2001 | pjc
Steve, I have no influence over conn design. We paste print-reflow solder two types of connectors. One is a 50 pin IDC w/ 0.5mm lead dia @ 2.54mm lead pitch and a chamfered pointed lead tip. The other is 32 pin DIP w/ 0.36mm lead dia @ 2.54mm pitch
Electronics Forum | Fri May 14 15:27:00 EDT 2010 | thanh
most of thru-hole components can not handle the heat through the oven. they will be burn.
Electronics Forum | Wed Feb 05 19:43:34 EST 2003 | iman
If by the Powers Ta Be (customer/designer), you can't change the PCB design, negotiate for the PCB fab house, to block the via holes with their (green?) solder mask some customers/designers want to have via holes to be present in the PCB pad, due to
Electronics Forum | Mon Sep 28 19:07:47 EDT 1998 | Steve Gregory
| I have had some field failures returned recently, the boards had flux contamination under the components in a sensitive area, Nothing really visible until the component was removed, and the board had no evidence of rework of any type. Is it poss
Electronics Forum | Thu Feb 06 14:47:50 EST 2003 | MA/NY DDave
Hi "some customers/designers want to have via holes to be present in the PCB pad, due to some belief that it helps in heat dissipation. " As I think about this I don't know exactly why they would be concerned. I can imagine in some exotic products
Electronics Forum | Wed Feb 05 21:05:38 EST 2003 | davef
Iman On your situation: As an earlier poster stated, your options are limited to opening you stencil aperture to compensate for the paste lost to the via. On your designer's belief that "it helps in heat dissipation": Could be true, but: * Hole wil
Electronics Forum | Mon Sep 14 11:02:28 EDT 1998 | Steve Schrader
| Can anyone point me in the right direction for information on this subject, my understanding is that it is a new technique, not in widespread use yet. click on the link to ITM-SMT.com
Electronics Forum | Wed Sep 23 15:13:43 EDT 1998 | Dave
| Can anyone point me in the right direction for information on this subject, my understanding is that it is a new technique, not in widespread use yet. We have a dedicated group that has researched pin in paste and has produced a CD-rom. If you wo
Electronics Forum | Wed Feb 09 08:54:42 EST 2000 | pascal MATHIEU
Hello friends , in order to try to reduce our labour cost , we are thinking to replace manual placementof PTH COMPONENTS by automatic unit which 'll be able to place relays ,and connectors . is there anybody on this forum to advise us on this topi
