Electronics Forum: foot length of lead (Page 1 of 3)

COMPONENT LIBRARY

Electronics Forum | Tue Oct 24 15:03:19 EDT 2000 | scott dryden

does anyone know of a book that contains the measurements of most of the surface mount components used today.is there a library that can tell me x,y,z,lead length and width and foot length.lead pitch.ect.dummy component catalogs only go so far.

Re: QFP On both side of a board

Electronics Forum | Fri Dec 11 16:06:18 EST 1998 | Michael Allen

G, You'll find at least one old thread in this Forum on dual-reflow if you do a search. I found one dated April 7, '98 (searched on "reflow"); this particular thread includes a discussion about the maximum weight-to-surface_area for successful dual

Reflow soldering of 208-RQFP-0.5mm

Electronics Forum | Tue Nov 01 12:36:19 EST 2005 | moonshine

What's your pad geometry/sizes relative to lead width/length? Revisit this and my free website: http://www.moonmanondarkside.com and see some examples and download some free documents. MoonMan

Mass Lead Trimming of Clinched Leads

Electronics Forum | Fri May 11 07:38:14 EDT 2007 | tombr

It is possible to vary the length of lead during auto insert. However, it requires software and mechanical adjustments. Universal equipment allows small changes via software program for lead length. To change angle of clinch involves a mechanical a

Mass Lead Trimming of Clinched Leads

Electronics Forum | Thu May 10 19:22:06 EDT 2007 | joeherz

We have a board that requires a .015 - .035" finished lead length which requires us to do mass lead trimming. To this point we've performed this activity on parts with straight leads. We're looking at going to an axial auto-insertion process (outso

Unwetting leads of Palladium Plated Pins

Electronics Forum | Mon Mar 01 11:03:51 EST 1999 | Dennis Xiong

Hello! SMT professionals, I do not know if anyone posted this question before. Last week, I reflowed our newly designed thin Rigid-Flex pcb with 0.040" thickness. I found all of pins of a TQFP48 ic did not get wetted. I could see on the heel side o

Unwetting leads of Palladium Plated Pins

Electronics Forum | Mon Mar 01 11:03:22 EST 1999 | Dennis Xiong

Hello! SMT professionals, I do not know if anyone posted this question before. Last week, I reflowed our newly designed thin Rigid-Flex pcb with 0.040" thickness. I found all of pins of a TQFP48 ic did not get wetted. I could see on the heel side o

Resistance value level of lead-free solder joint

Electronics Forum | Mon May 26 08:02:11 EDT 2003 | davef

Resistance: Tables of wire gauge often provide a resistance measure of some kind for each gauge. That way we can estimate the resistance of any length of wire we might be interested in. Calculating trace resistance is only slightly more complicated.

Re: Unwetting leads of Palladium Plated Pins

Electronics Forum | Mon Mar 01 12:50:47 EST 1999 | justin medernach

| Hello! SMT professionals, | | I do not know if anyone posted this question before. | Last week, I reflowed our newly designed thin Rigid-Flex pcb with 0.040" thickness. I found all of pins of a TQFP48 ic did not get wetted. I could see on the hee

Re: Unwetting leads of Palladium Plated Pins

Electronics Forum | Mon Mar 01 22:37:01 EST 1999 | Dave F

| Hello! SMT professionals, | | I do not know if anyone posted this question before. | Last week, I reflowed our newly designed thin Rigid-Flex pcb with 0.040" thickness. I found all of pins of a TQFP48 ic did not get wetted. I could see on the hee

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