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January 2001

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Subject:
From:
Darrel Therriault <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 3 Jan 2001 15:35:49 -0800
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TechNet,

We use a consultant to verify power designs and I got an interesting
question on a new design.

In selecting some connectors, the question came up "what is the comparative
tracking index # for board material (FR-4)."

Apparently, there are some formula's (IEC/UL/IEEE??) or calculations
whereby you can plug in some specific known values and the
  result will place you in a range that will require certain type of
connector requirements.

I am not familiar with this at all, so if anyone can direct me to some
specific info or IEC/UL/IEEE or other documents,
I would appreciate it very much.

Tks....DT

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