Electronics Forum: thru hole hand (Page 1 of 84)

thru hole

Electronics Forum | Tue Dec 16 19:45:47 EST 2003 | Hiram

Hi, I am looking for the IPC criteria hole-to-lead ratio. Does anybody know a practical way to determine if some holes in my pcb's do not get enough solder in the wave solder machine because an inapropiate hole-to-lead ratio? Thanks in advance! Hi

thru hole

Electronics Forum | Wed Dec 17 10:10:35 EST 2003 | Hiram

Thanks Dave, your comments were very helpful! Hiram

thru hole

Electronics Forum | Wed Dec 17 09:53:26 EST 2003 | davef

IPC-2222 - Sectional Design Standard For Printed Board For Organic Printed Boards, Table 9-3 � Plated Through Hole Diameter To Lead Diameter Relationships will give you the standard information you require. If we can�t get proper hole fill after try

Re: Soldering long lead thru hole parts

Electronics Forum | Fri Dec 10 12:40:44 EST 1999 | Brian W.

It sounds like the process is very labor intensive, and all the verification is done after the parts are soldered. Assuming you are hand placing the components: 1 - Contact Systems semi-automatic placement machine. It show polarity when placing, so

Re: Bottom side smt and thru hole

Electronics Forum | Wed May 27 14:35:52 EDT 1998 | Justin Medernach

| | R&D is currently designing a board with smt components on both sides of the board. They are adding a 16 pin IC Gull wing. on the bottom side of the board. I have asked for only caps and resistors to be placed on the bottom side. Is there a recomm

Re: smt reliability vs thru hole

Electronics Forum | Tue Jan 18 12:36:11 EST 2000 | Dave F

Dave: I haven't located something to support your contention, yet, and I'm not going to comment on the factors that drive reliability beyond component selection, because I know that you've got some sweaty-palmed sales type wringing his hands waiting

How to add thru hole to SMT line

Electronics Forum | Wed Apr 23 19:24:29 EDT 2003 | MA/NY DDave

Hi Grant, You already have a few good answers. If you have but one to a few BNC connectors I would kind of use the advice here or do what you already are doing aka hand soldering. I would not install a Wave Solder line for a really low volume of BN

How to add thru hole to SMT line

Electronics Forum | Mon Apr 21 06:26:28 EDT 2003 | Grant

Hi, We have a SMT production like, however we have very little experience with through hole assembly. We design everything to be completly SMT based, however connectors are the only part of our product that still requires through hole assembly. Cur

smt reliability vs thru hole

Electronics Forum | Sat Jan 15 21:52:15 EST 2000 | Dave Bartlett

I am looking for information comparing the reliability of smt boards vs thru hole boards. Also, information on when to use thru hole instead of smt if there is such a case. Background - We currently make temperature controller with a mix or smt and

Rework of thru hole components

Electronics Forum | Sat Dec 24 07:48:52 EST 2005 | ams_gen

Hello, I need to rework a thru hole DIP mounted on a metal backed FR4. It is difficult to remove the FR4 board from the metal back since it is riveted. Is there a simpler way to takle this? Thnx

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