Electronics Forum: resistance (Page 1 of 94)

TSOPII junction-to-case thermal resistance

Electronics Forum | Tue Aug 18 18:55:04 EDT 1998 | Sam Guilaume

Does anyone know the actual junction-to-case thermal resistance for TSOPII packages.

Wear resistance PCB finishing

Electronics Forum | Wed Feb 23 02:20:09 EST 2000 | Roni H.

Hi, I need a wear resistance PCB finishing over bare copper (If exist!), the surface have a moving part which slides over it and bare copper as a surface is not good enough. I'll apprechiate any information. Thanks Roni

Wear resistance PCB finishing

Electronics Forum | Wed Feb 23 02:20:09 EST 2000 | Roni H.

Hi, I need a wear resistance PCB finishing over bare copper (If exist!), the surface have a moving part which slides over it and bare copper as a surface is not good enough. I'll apprechiate any information. Thanks Roni

Leakage resistance in PCB

Electronics Forum | Mon Feb 04 09:53:35 EST 2002 | Ole J

I need some information on how much leakage resistance that I can expect in a normal PCB. Ex. between two tracks on the same layer or on opposite layer. There must exist some design rules ?

Leakage resistance in PCB

Electronics Forum | Mon Feb 04 20:27:25 EST 2002 | davef

1,000 G ohm 100 M ohm Dielectric Constant 9.5 4.9 Loss Factor 5 - 20 200 * E indicates exponent Continuing: * Spacing between same plane traces effect the electical parameters between the traces. * Dielectric materials used between diff

Thermal resistance of a given copper area

Electronics Forum | Tue Jun 03 16:42:33 EDT 2003 | RF Lurker

Does anyone have a method to calculate the thermal resistance of a given copper area?

Voltage linking and tip to ground resistance

Electronics Forum | Wed Apr 27 14:10:30 EDT 2005 | Bruno Lalonde

I m looking to implement a maintenance program here at Exfo, I'm looking form the norms on the hand soldering iron (tip to ground resistance and Voltage linking). Thank

Voltage linking and tip to ground resistance

Electronics Forum | Wed Apr 27 21:59:34 EDT 2005 | davef

Check with your soldering iron supplier. We'd expect them to say: * Tip to Ground Resistance:

Thermal resistance of a given copper area

Electronics Forum | Fri Jun 06 16:11:25 EDT 2003 | RF Lurker

I understand that there may not be a lot of material on this, as most threads I've seen discourage doing it. It goes against DFM to do it. But I wish to use a large copper area instead of heat sink and thermal epoxy to cool a regulator. But I can'

Thermal resistance of a given copper area

Electronics Forum | Tue Jun 03 20:54:29 EDT 2003 | davef

It's always good to have the lurkers out in the open. Welcome. Being uncertain about what you seek, lets take a couple of tacts: * For resistivity, look here: http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=24595 * For resistance to dama

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