Electronics Forum: components per hour (Page 5 of 114)

Securing components for wave soldering

Electronics Forum | Wed Jul 14 14:10:11 EDT 2004 | chad

I've had several customers use bean bags. There are a couple companies that will custom make them per size and weight. Other options are wave fixtures. You can contact me offline if you need more specific information 503-924-2747

Paste printing fine pitch components

Electronics Forum | Tue Oct 22 09:20:31 EDT 2013 | swag

Yes, car rims (and brass tubas)! You finally helped me get to the bottom of this expensive issue. We fired the culprit. It's the same guy that was using the ultrasonic stencil washer to clean car parts on night shift. It might be snake oil, I don

Baking components at 70 degree

Electronics Forum | Wed Jun 18 13:08:52 EDT 2008 | sleech

Dave: You are spot-on right! The major hurdle is that 70 degrees C is below the boiling temperature of water. Only a near zero relative hudity chamber will cause the ingested moisture to migrate from a package. There is one facet of the 70 degree p

Quad 4c not placing components

Electronics Forum | Wed Sep 04 09:47:41 EDT 2019 | smrsteve

Hello All, I've just bought a Quad 4c pick & place machine. It's so close to actually building boards, but just doesn't quite get there. I was wondering if there's somebody out there with experience of these machines that might be able to help...?

% of wasted components in SMT production

Electronics Forum | Thu Mar 25 14:31:28 EDT 2010 | cguerzoni

Thank you, it seems to be an high scrap %. I think that this % depends on the size of the component (machine loss), on the lot size (new lot set up loss) and on the number of components per reel (new reel set up loss). What do you think abot this?

Laying down and holding large components

Electronics Forum | Thu May 22 18:47:12 EDT 2003 | russ

I would assume we are talking about a radial leaded electrolytic cap? We use Electronic grade RTV (Dow corning 3145). It sticks good and can be removed if necessary. It is also pliable so you don't have to worry about CTE or other stresses that may

Re: span for througt hole components

Electronics Forum | Wed Dec 23 03:29:15 EST 1998 | Thomas Schmidt

I�m interested in your list. Please send me the copy per fax. Here�s the number +49 821 69526 | I do not know the specific formula, bu I do have some Military Standard | documentation from 1989 showing some inferences on span of components. Send me

Laying down and holding large components

Electronics Forum | Thu May 22 14:16:40 EDT 2003 | MikeF

We need more information to give you a good answer. Is this a leaded part (axial or radial) or smt? How big is the part, how much weight per lead? What is the end use environment, will it see any vibration? or temperature extremes? Some general com

Solder Paste and fine pitch components

Electronics Forum | Wed Sep 18 12:35:56 EDT 2002 | stepheno

Fourth - > back to design of PCB. Are there solder dams of > mask between the pads? If yes, that helps. If > not, pay close attention to stencil aperture > width and be sure that the aperture deposits less > paste by 1-2 mils per pad, centered o

Solder Paste and fine pitch components

Electronics Forum | Wed Sep 18 12:31:16 EDT 2002 | dragonslayr

My suggestion is to conduct a Design For Manufacturing (DFM)study on the assembly in question. Pay particular attention to the pad sizes, component lead dimensions and satisfy yourself that those two factors are correct. Given that pads match compone


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