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August 1998

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Subject:
Re: FR-5 definition
From:
Lum Wee Mei <[log in to unmask]>
Reply To:
"TechNet E-Mail Forum." <[log in to unmask]>, Lum Wee Mei" <[log in to unmask]>
Date:
Mon, 31 Aug 1998 14:45:21 +0800
Content-Type:
text/plain
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text/plain (55 lines) 
FR5 is a high-temperature epoxy-glass with flame-resistant resin system with strength and electrical
retention at elevated temperatures. FR5 is the NEMA grade. Under the military designation MIL-P-13949F, it
is known as GH. As the description states, its resin system is epoxy on glass base. The colour of the
laminate is translucent.

Hope this help. If you require more information, you can refer to "Printed Circuit Handbook" by Clyde F.
Coombs, Jr. This book has been my mentor for years.

Regards.



Howard Lin wrote:

> Hi All,
>
> What's the definition of FR5?
> Look forward to receive your reply very soon
>
> Howard Lin
>
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