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Date: | Fri, 15 Nov 1996 15:41:00 -0800 |
Content-Type: | text/plain |
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Based on a limited amount of empirical data over a 10C to 75C range
of heat rise
the equations for a polyimide flex circuit constructed with 1 oz / 1
mil
laminate and 1 mil coverfilm are:
Current = ( 0.7175 dT + 33.169 ) x TA
dT = ( 1.398 Current / TA ) - 46.384
TA = Current / ( 0.7151 dT + 33.169)
Where:
Current = Current capacity rating in Amps
dT = Change in temperature in C
TA = Cross section area of traces in sq.mm.
Andy Magee - Applications Engineer
Rogers - Circuit Materials
Tel: (602) 917-5237
Fax: (602) 917-5256
E-Mail: [log in to unmask]
Website: http//www.rogers-corp.com/cmu
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