Electronics Forum: pin (Page 71 of 230)

Keystone 1071 Battery Clip Solder Problem

Electronics Forum | Fri Jun 03 03:27:36 EDT 2005 | Rob

http://www.keyelco.com/pdfs/prod03-coinholders.pdf Bottom of page 2 of 3. There is a reasonably large heatsink function on one of the pins due to the size of the Anode/battery spring clip.

Unknown logo on IC

Electronics Forum | Thu Jun 16 14:18:26 EDT 2005 | Confused

I have a 100 pin TQFP with a logo the same as mitsubishi 3 diamonds. does anyone know this logo it's not mitsubishi because I can find no sight for them only cars. Anyone know this logo?

Exhaust on Reflow Oven

Electronics Forum | Tue Jun 21 14:27:14 EDT 2005 | Dreamsniper

Defects will result, Your cooling rate is affected because the hot air is not circulated properly. Outgassing will appear and you'll have pin holes / blow holes, disturbed joint etc. Correct me guys if i'm wrong. Thanks

part No. wanted! IC marking

Electronics Forum | Thu Jun 30 05:08:41 EDT 2005 | saddo

wanna know part no. ! Marking on top-side "GVH", 6 pins very small IC. I guess it is a kind of switch for Tx/Rx. Anybody seen "GVH" ?

Pin to Hole ratio

Electronics Forum | Wed Jul 20 17:23:19 EDT 2005 | davef

IPC-2222 - Sectional Design Standard For Printed Board For Organic Printed Boards, Table 9-3 � Plated Through Hole Diameter To Lead Diameter Relationships will give you the standard information you require.

Reflow solder issues with 6pin SOT's

Electronics Forum | Tue Aug 09 13:44:48 EDT 2005 | mtd

The solder on the rest of the board looks good. There are no large components around these parts. We check the profile using a KIC and it met the recommendations of the solder paste manufacturer. I have not did a dip test of the board or components.

Cracked Capacitors

Electronics Forum | Wed Aug 31 11:40:24 EDT 2005 | stepheniii

I just had a "how could I have forgotten" moment. By any chance are these double sided boards and the cracked components are on the fist side? If so support pin placement could be the problem. In case more info would be good.

Conathane CE 1155-35 Conformal Coating Issues

Electronics Forum | Mon Sep 26 16:48:32 EDT 2005 | PWH

Are you using masking? Conformal coat will de-wet (no pin holes usually, though) due to masking tape adjacent to affected areas if the tape glue chemistry isn't compatible with the conformal coat.

SMEMA

Electronics Forum | Tue Oct 11 14:58:52 EDT 2005 | vikkaraja

You do not need to buy any special cable for this purpose. Fuji normally has 2 pins connector attached at the end of each equipment. Now if you do not have those connectors, you can just buy some 2 to 4 conductor cable from your local electronic supp

Reflow soldering of 208-RQFP-0.5mm

Electronics Forum | Mon Oct 31 01:52:44 EST 2005 | milroyperera

Hi, I`m having some troubles with reflow soldering RQFP-208 pin IC with 0.5mm pitch. The profile is done according the solder paste supplier specs but still this RQFP is shifting in the reflow process. What could be the cause of this and what would


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