RE: Potential heating problem with standard patch Cat5 panels
What is the worst case of the two cases:
Case 1: PC board trace with 0.07W/inch generating 12C rise
Case 2: 0.07W dissipated on 0805 SMT resistor rated to 125mW and its area is
8mils x 5 mils.
I know that case 2 is being used without failure reporting. Since in case 2
the power density/area is much higher than case 1, it seems that it is not a
real problem.
What others think about it?
Yair.
> -----Original Message-----
> From: Jack Andresen [SMTP:jandresen@etslan.com]
> Sent: ה, מאי 03, 2001 11:21 PM
> To: stds-802-3-pwrviamdi@ieee.org
> Subject: Potential heating problem with standard patch Cat5 panels
>
> A customer mentioned panels burning up when one of his customers senr
> power down the network.. I did some canculations and found a potential
> problem.
>
> Jack Andresen << File: DTE power.doc >>