Electronics Forum: smt ebso connectors (Page 9 of 34)

SMT Custom connector soldering issue

Electronics Forum | Mon Oct 29 16:34:02 EST 2001 | patcope1

I have a custom connector that tends to lift during reflow. The PCB retention tabs and pins are lifting off of the pads on the board and the solder is forming underneath the pads, with no heel or toe filet. Is there anyone out there that can help if

Solder Tip Shroud

Electronics Forum | Tue Sep 24 14:29:32 EDT 2002 | stepheno

We have a board with 16 SMT connectors, side by side. We get some unsoldered pins on the connectors. There is about a half inch gap between them. The enigeer in charge of the project said it would cost too much to make something and didn't think it

Connector leads plating

Electronics Forum | Tue Dec 10 19:30:49 EST 2002 | Vijay

Hi Dave, The peak temp on the leads is 216-218 Deg C and duration above MP (179 degC) is 55-60 sec. Alloy(solder paste) used 62 Sn,36 Pb 2Ag (Alpha WS 609 Ty 3 Water eash) This is a SMT connector wth Gulwing leads Gold plating on the PCB is 2-5 micr

Non-wetting: PTH on double-side reflow

Electronics Forum | Wed Apr 06 11:58:02 EDT 2005 | patrickbruneel

Hi SMT Engr With a double-header connector do you mean Double Level Right Angled Header Connector. If so there is a big difference in heat sinking capacity between the two rows, as where the pins of the top connector absorbes twice as much heat as t

SMT on Flexible circuits

Electronics Forum | Thu Feb 15 20:27:11 EST 2007 | vshan

Hi Chris Good Day!!!! well we are running flex panel(150x270) with one connector(3 pin legs both sides) insert. Each panel consists of 28 parts and its used for disk drive industries. We are having a pallet to support with the top cover design such

Pasting a thru-hole part at SMT

Electronics Forum | Wed Dec 05 07:25:22 EST 2007 | realchunks

All posters here are right. My point was you have to design your board to the process. You cannot simply take any connector and change it to Pin and Paste. So much depends on your aperture openings, hole size to pin size, board thickness, number o

SMT fine picth connector lead oxidize-Throw out rate too high!

Electronics Forum | Fri Sep 06 14:03:18 EDT 2013 | horchak

If you are a CEM you are setting yourself up for failure and will be left holding the bag. Flash gold has one purpose. It is a protective coating for the base medal to keep it from oxidizing. It is very thin and will be absorbed into the solder joint

Tension on a SMT joint at the Solder wave process

Electronics Forum | Thu Nov 19 10:24:14 EST 1998 | Brian Co nner

Currently, I am having problems with a AMP Mictor connector at the wave process. These connectors have both SMT leads(topside) and thru-hole leads. Even though we have re-designed the board for via issues. We still see some of the SMT leads re-fl

Re: Fine pitch SMT connector reflow

Electronics Forum | Mon Jun 05 10:32:39 EDT 2000 | Khalid Saeed

It could be a gold finish problem. The recommened gold finish thickness is less than five micro inches. Gold thickness greater than five microi inches is significant contributor for causing embrittlement of the solder joints. Verify the reflow profil

Repair solutions for SMDs

Electronics Forum | Mon Oct 05 03:54:31 EDT 1998 | Thomas Blesinger

We are looking for partners to work out a repair concept for our brand new SMT backplane connector. We are willing to name companies that cooperate with us as qualified vendors for a repair solution to our connector customers, if we find a workable s


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