Electronics Forum | Tue Feb 11 04:08:51 EST 2020 | majdi4
we have a problem : The connector is falling down in the second reflow. This connector is mounted in the first side. You can find attached the reflow profil we work with and a photo of the connector. We tryed with under_film but the connector is sti
Electronics Forum | Mon Feb 24 01:40:05 EST 2020 | sarason
Traditionally these connectors are riveted to the board on higher volume telecommunication applications. sarason
Electronics Forum | Wed Feb 12 10:17:15 EST 2020 | emeto
Would you consider a light reflow pallet on second side holding the connectors in place and preventing them from moving?
Electronics Forum | Wed Feb 12 19:06:28 EST 2020 | SMTA-Alex
I see that the connector has plastic alignment pins. Is there any reason you can squirt a drop hi-temp "Crazy" glue into each hole, after the bottom side assembly and before printing the top side?
Electronics Forum | Mon Feb 24 00:59:47 EST 2020 | sssamw
=0.08g/mm2, make it less than 0.08. And maybe the connector gravity center location is a cause also. If no machine issue (vibration, wind,etc), and you cannot change the design/material then you can use SMT glue to fix the connector during reflow.
Electronics Forum | Tue Feb 11 07:35:03 EST 2020 | dontfeedphils
If all else fails, you can always chipbond the part. Would it be possible to run this side as the second reflow?
Electronics Forum | Wed Feb 12 07:25:47 EST 2020 | dontfeedphils
If you have control of the solder alloy you're able to use on the product, you could run a lower temp solder on the second side and try to avoid the first side entering reflow.
Electronics Forum | Wed Feb 12 08:10:49 EST 2020 | majdi4
We can't do that because we are using dual ligne reflow oven..So the two sides of PCB are soldered with the same reflow profil.
Electronics Forum | Wed Feb 12 10:11:05 EST 2020 | emeto
Would you consider a light reflow pallet on second side holding the connetors in place and preventing them from moving?
Electronics Forum | Wed Feb 12 12:58:09 EST 2020 | emeto
No to redesign, no to glue dispensing and no to pallets. Now you should change gravity ...or pray :) I am interested to see what other solution you can come up with.
