Electronics Forum: 127 (Page 1 of 11)

Quad IV-c power transformer

Electronics Forum | Fri Jan 25 08:54:33 EST 2019 | dfl

For the first time, I'm really looking at to the power transformer for the IV-C pick and place (the big big one, at the middle). As I understood, is this transformer converting the 220V to 127V? I realize that the camera monitor is 127V and the PC PS


Electronics Forum | Mon Apr 04 22:07:15 EDT 2005 | Dhanish

Questions and answers - what Column pitch do your CCGA have ? a) 1,27 mm?b) 1.00 mm? 1.27mm - how are the PCB pad finisched ? OSP Enig? HAL? OSP - Are you using Clean or NC solder paste? Clean

mathematical computation of transformer inductance with gap core

Electronics Forum | Tue Apr 04 20:48:37 EDT 2006 | davef

Look here: http://focus.ti.com/lit/ml/slup127/slup127.pdf

TSOP 44 type II

Electronics Forum | Tue May 04 13:32:05 EDT 2004 | tigerlordgm

What lead pitch, .8mm or 1.27mm?

Need Help for CCGA Rework

Electronics Forum | Thu Nov 10 15:43:10 EST 2005 | 1st Article

myu, Is using a 0.6mm stencil wise? 42.5 X 42.5 has two models, the 1mm pitch has 41x41 array with 1657 I/O and the 1.27mm pitch has 33x33 with 1088 I/O. For a typical c-cga with 1.0mm - 1.27mm pitch, may requires a 2mil stencil, 1.0mm pitch gets .

Wave soldering of PTH components with pitch 1.27mm

Electronics Forum | Thu Jul 08 04:26:27 EDT 2010 | bks

Hello, this is my first post in this forum, but sometimes I visit it to get some news. Now we have an issue and I need your advice. Few months ago we were awarded with a project that use PTH components. We solder these components on Wave soldering

Temporary Stencil for MPC555 PBGA

Electronics Forum | Thu May 30 11:12:38 EDT 2002 | robbied

If I get you right and you are looking for a micro stencil for bga rework, then you should try http://www.circuittechctr.com. They are offering a free sample of their Flextac micro stencils in a wide range of sizes. The thing with these ones is that

LGA Stencil Spec

Electronics Forum | Thu Aug 03 11:32:44 EDT 2000 | bzark

Any opinion on what size aperture and stencil thickness is most optimum for Land Grid Array 1.27mm pitch with .6mm pad using SN/AG NC solder paste?

Re: measuring pitch

Electronics Forum | Mon Jun 07 15:12:13 EDT 1999 | John Thorup

| I was wondering what measurements are used to define pitch? Generally we would use it for the distance from lead center to lead center of an IC. For instance, an SOIC would usually have a pitch of 0.050" or 50 thousandths of an inch (1.27mm)|

BGA rework

Electronics Forum | Thu Jan 21 19:43:16 EST 1999 | Ron Costa

What are the problems related to cleaning when using OA tacky flux to replace a PBGA. Will your standard inline cleaner be able to reach all the way under to clean all residue? BGA type is 1.27mm pitch .030 dia. ball plastic. Any info helpful! Thank

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