Electronics Forum: cfm (Page 1851 of 7890)

Measuring Voltage of LED

Electronics Forum | Sun May 30 20:59:40 EDT 2004 | johnww

Hi Everyone, I have a number of LED's of different voltages. Would someone please tell me how I can measure the voltage of each LED so I don't apply the wrong voltage and burn them out. Thanks. JW

Gold Embrittlement

Electronics Forum | Wed Jun 02 05:37:08 EDT 2004 | johnwnz

dave, let me just go on record as saying your a scary individual if you knew all that off the top of your head! John

Datecode & Solderability

Electronics Forum | Sun Jun 13 01:39:49 EDT 2004 | Vahid V

Is there a indutry standard on SMT datecode? My last company's guideline was two years but I don't remember seeing any specific studies. Thanks.

Volume of paste deposited with respect to board thickness

Electronics Forum | Tue Jun 01 10:15:29 EDT 2004 | davef

We agree with John about his comments on the controlable factors relating to your printer, but we'd add that paste formulation and mesh are also contributors to nice looking bricks.

Is Aqueous Cleaning Recommended for BGA boards?

Electronics Forum | Tue Jun 01 18:16:26 EDT 2004 | Dreamsniper

Yes. I agree with the previous comments. If you will switch to Water Soluble Flux you need an Aqeous Cleaner.

Is Aqueous Cleaning Recommended for BGA boards?

Electronics Forum | Wed Jun 02 06:07:47 EDT 2004 | mattkehoe

Hi Abraham, One solution for BGA cleaning issues may be found in a different way of applying the paste/flux. Look into this link and let us know if you would like to try a sample. http://www.sipad.com/SIPADBGA.htm mkehoe@sipad.net

PCB Supports

Electronics Forum | Tue Jun 01 11:23:46 EDT 2004 | cyber_wolf

Is there anyone out there using the Red-E-Set board support system ? If so, could you please comment on it. Thanks

PCB Supports

Electronics Forum | Wed Jun 02 09:21:10 EDT 2004 | James

They take the place of the tooling pins. They magnetically attach to the table. Board comes in, table raises, Red-E-Set supports the board, prints, done. You just have to do the initial setup before running. We bought 4 units for each machine. J

PCB Supports

Electronics Forum | Thu Jun 10 15:07:46 EDT 2004 | vickt

The Red-E set tooling is the lightest that we have found on the market. A key metric when attaching to a moving XY table like that of the 4791 HSP. Simple, lightweight, relatively inexpensive. I can't find many issues with that. T. Vick

Ungar SMR1000 Info

Electronics Forum | Tue Jun 01 14:57:08 EDT 2004 | ssmith579

I recently obtained a used Ungar SMR1000 rework station. Does anyone know where to find information and parts for this? Thanks, Steve


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