Electronics Forum: pins (Page 83 of 229)

QFN welding problem by reflux oven 10 zones

Electronics Forum | Sun Feb 23 21:19:08 EST 2020 | sssamw

Yes, this is for tin-lead profile. And for the QFN pins which has copper exposed that not required and not possible to have fillet on side surface as in IPC, see 8.3.13, in IPC-A-610-G

use the feeders w24c

Electronics Forum | Wed Mar 04 07:57:15 EST 2020 | truongnguyen

i have fuji feeders w24c. I want to use PLC to control feeder. I don't know the pinout of the 14-pin jack. Please help me!!!

Universal GSM1 Interlock Switches

Electronics Forum | Mon May 04 09:18:18 EDT 2020 | ilavu

Also, Check jumpers on 9pin connectors at front, rear and both side. If anyone missing or broken, will do the same.

Vapor degreasing cleaning

Electronics Forum | Tue Sep 08 10:45:26 EDT 2020 | charliedci

We've had to hand solder 1 or 2 pins in cases like this or you could use chip bond or some adhesive on the component body.

PCB Support Pin

Electronics Forum | Fri Sep 18 18:20:45 EDT 2020 | dwl

Count on Tools makes hard foam support block with magnetic bases that work really well. check with them to see if they make them for the SPV. Insert standard: I receive no benefit nor compensation from the aforementioned company.

PCB Support Pin

Electronics Forum | Fri Sep 18 20:27:25 EDT 2020 | cbeneat

Contact Jim Bernhard at Quick-tool (508)699-9077. We use their modules in our printers as well as our P&P.

Pin in Paste assistance

Electronics Forum | Wed Sep 30 13:49:06 EDT 2020 | emeto

I would prefer wave for this parts, but if it not an option, cut 6-8mil stencil and double stroke it on the printer. All the rest is adding additional steps/labor/cost that is not worth it.

Pin in Paste assistance

Electronics Forum | Fri Dec 04 13:17:14 EST 2020 | cyber_wolf

As a side note, you get to clean up all the paste that pukes on the bottom heaters of your reflow oven.

Pin in Paste assistance

Electronics Forum | Thu Dec 17 16:02:41 EST 2020 | proceng1

I think over printing is the best option, and I like the idea of ordering a test stencil with increasing sized apertures. Make sure you go beyond what you think will work, just so you know where line is.

Pin in Paste assistance

Electronics Forum | Thu Dec 17 16:15:56 EST 2020 | itmconsulting

I have found that if you keep lead protrusion below the PCB at less than or equal to 0.030", you will not get icicling or "paste pukes"...


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