Electronics Forum | Thu Nov 28 09:51:37 EST 2002 | davef
I got here before the experts did. Underwriters Laboratory Incorporated is an organization located in the United States and is purely concerned with product safety performance. UL operates laboratories for the investigation of materials, products,
Electronics Forum | Mon Dec 23 17:24:59 EST 2002 | davef
Guessing at the meaning of your description of �res., fmf, .100, 3010, 1, S�: * res - Resistor * fmf � �mf� tells you �metal film� �fmf� tells you �flame metal film� type * .100 - Precision tolerance 0.1%, although it could be power rating. * 3010 �
Electronics Forum | Fri Jan 10 10:09:42 EST 2003 | mantis
Hi In selecting or substituting a capacitor for use, consideration must be given to (1) the value of capacitance desired and (2) the amount of voltage to be applied across the capacitor. If the voltage applied across the capacitor is t
Electronics Forum | Thu Feb 13 12:57:43 EST 2003 | Claude_Couture
So, to really get reliable pickup rates from new bulk feeders, I just need to replace all the chip shooters we have with more recent ones with pickup correction capability. So where is the saving? ;-) -Upside down resistors? not an issue. so what if
Electronics Forum | Fri Apr 11 11:26:09 EDT 2003 | Brian W.
Cracked capacitors usually are not found at ICT. Unless the cap is completely cracked, the capacitance may not change much, and the usual failure mode is a leakage current. This is usually only seen in ESS type testing, when temperature and humidit
Electronics Forum | Mon Apr 28 18:34:17 EDT 2003 | Brian W.
We typically do not try to pick up and hand placve chip resisstors and capacitors. The risk and cost is too high for components that are a penny or less. We take into consideration that on many of our components, someone will have to test them to v
Electronics Forum | Mon Jul 07 11:45:45 EDT 2003 | lromero
Do you know what the maximum temperature rating is for the devices. But in my past experience you could be seeing the following. Excess thermal ramp rates typically you would like to see 2 to 3C/sec in the reflow oven, if it is greater than this i wo
Electronics Forum | Wed Aug 13 12:58:32 EDT 2003 | babe
Lets try this again, Every shelf system should be grounded individually. Every six feet per EOS/ESD requirements. Do not daisy chain anything. Secondly, Depending on the depth of paint,style of pain that your shelving system has. A static charge woul
Electronics Forum | Mon Oct 06 11:13:32 EDT 2003 | marmotzj
Dear All, I'm encountering a problem on mounting Intel E7501 and P64H2 FC-BGA chips. After the SMT process, these two BGAs were defected. Both had power-to-ground short circuits on the die package itself, and also the die resin had cracking tracks
Electronics Forum | Thu Feb 05 08:27:58 EST 2004 | pjc
We had a V-Tek TM30 manual taping machine using heat seal top tape. Had very good results- with skilled operator - to supply taped components to our 2x Fuji IP2 machines - no tape cropping. Stefan's points are somewhat valid, but you can have a succe
