77 4-40 results

Electronics Forum: 4-40 (Page 1 of 8)

Need Solder Ball 95.5% Sn 4.0% Ag 0.5% Cu

Electronics Forum | Fri Apr 29 14:24:25 EDT 2011 | ppcbs

I am looking for immediate stock of a high temp lead free solder ball. 0.60 mm dia. and an Alloy of 95.5% Sn 4.0% Ag 0.5% Cu Any suggestions.

Why is the garbled character of AD18 converted to protel4.0 version?

Electronics Forum | Thu Sep 13 05:02:09 EDT 2018 | benny

4.0 is necessary for PCB manufacturer. ALLPCB has many pcb engineers, you can ask them change for you.

Selective Soldering

Electronics Forum | Tue Sep 19 15:11:16 EDT 2006 | d0min0

Hi there, we use inertec els 3.0 and 4.0 machines regards

BGA Pad damage

Electronics Forum | Sat Dec 09 08:47:41 EST 2006 | davef

Look here: http://www.circuitrework.com/guides/4-0.shtml

high speed PCB frequency range

Electronics Forum | Tue Aug 02 06:30:04 EDT 2016 | technotronix

I think it is normally from 4.0 to 5.0

Universal GSM1 UPS Rev. 1.4

Electronics Forum | Mon Jun 26 03:00:15 EDT 2000 | armin

Hi, Anybody there running GSM1 UPS Rev 1.4 with OS/2 4.0 Warp ? We have OS/2 2.11 and we plan to upgrade to OS/2 4.0 Warp. I'm afraid of some incompatibility issues might occur. Please feedback any incompatibility issues you encountered in case you h

Re: Jumper settings for v4p895p3/smt v4.0

Electronics Forum | Sat Mar 14 21:07:20 EST 1998 | Jerry Kwan

Please help me in: Re: Jumper settings for v4p895p3/smt v4.0 processor is AMD 486DX2-80 send me the manual or information PLEASE You be rewarded!

Re: Jumper settings for v4p895p3/smt v4.0

Electronics Forum | Tue Mar 17 05:26:57 EST 1998 | Jacob Gaarde

Pick and Place Camera sees Red

Electronics Forum | Thu Sep 08 09:41:51 EDT 2005 | PWH

If you do find your camera is bad, I think they are relatively easy to replace if you get a new one. I have done a 1.0 and 4.0 GSM camera replacements but not a PEC as of yet. If it's like the 1.0 and 2.6 and 4.0's, likely it is not tough but will