Electronics Forum: pass (Page 16 of 150)

Isolate two power input connectors from each other

Electronics Forum | Mon May 02 14:10:24 EDT 2016 | gan_ceanach

Hi, Could someone point me in direction (article, project, schema or company that could do this prototype) how to isolate two power inputs (A and B) connectors from each other? When A is connected it does not pass current to B connector? Also on

Dewetting in Sn Sufrace PCB in 2 Pass Reflow

Electronics Forum | Thu Feb 09 20:12:51 EST 2017 | imarkl

Any advise about dewetting defect occurrence during 2nd pass reflow. Commonality on affected PCB having water marks near affected pad(s). Elemental composition found on affected pads without solder paste are Silicon and Sulfur. As well as in pad with

Reflow Oven

Electronics Forum | Tue Aug 13 11:21:04 EDT 2019 | slthomas

A profiler can't distinguish where your heat is coming from, so if you're significantly imbalanced between top and bottom heat (could be an oven problem or your settings) it might still be a cause. You don't say whether or not your top and bottom s

Pin in Paste assistance

Electronics Forum | Thu Dec 17 15:53:32 EST 2020 | dwl

for option 3, if you place the connectors on the first pass then flip the board, won't the protruding leads interfere with second pass stencil printing? My vote would be to overprint onto the solder mask. you can print pretty far and still have it w

Single Pass vs Double Pass SMT production line

Electronics Forum | Wed Dec 08 20:47:01 EST 2021 | cbeneat

It's funny, we expanded with 2 additional lines a few years back. Set them up for exactly what you're saying, the end of one is 5 feet from the beginning of another. Operator would only have to pull the magazine from the mag loader, turn around and l

Defect Rate WRT Customer Deliveries

Electronics Forum | Fri Mar 08 16:10:44 EST 2024 | tommy_magyar

Unfortunately no sample numbers. We are building our own products, not a contract manufacturer. We are monitoring AOI, RMAs and rework - this only started in the last couple of months, but top management inclines not to give a target as it may "upset

Re: SMT Feeder verification

Electronics Forum | Fri Mar 10 14:44:22 EST 2000 | NickMata

Stuart, Pathway Sales Group 408) 779-0358 Hal Hendrickson Also SurPass Technologies Limited Declan Kennedy 353 91 773274 declan.kennedy@Surpass-tech.com Hope this helps

Re: PCB snap-offs

Electronics Forum | Wed Aug 30 11:10:24 EDT 2000 | Steve Thomas

you also may find that varying the width/spacing of your breakaways affects how they run through a pass-through system, if you utilize one. They can raise he!! with conveyor sensors, throw timing off, send printers into a new cycle before the board

Re: Selective Wave Solder Pallet

Electronics Forum | Mon Aug 21 15:57:28 EDT 2000 | Ron H

The board and pallet are at room temperature when they pass thru the flux, then are sent thru a pre-heat section, and lastly sent over the wave solder. The exposed portions of the board solder properly.

Re: SMT Feeder verification

Electronics Forum | Fri Mar 10 14:44:22 EST 2000 | NickMata

Stuart, Pathway Sales Group 408) 779-0358 Hal Hendrickson Also SurPass Technologies Limited Declan Kennedy 353 91 773274 declan.kennedy@Surpass-tech.com Hope this helps


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