I calculated that the temperature difference across a 1" square piece of
1/16 thick FR4 is about 8C/W.
Does that seem reasonable?
TIA, John S
FR4 thermal calcs sanity check
Oct 08, 2013
5 Replies
1/16 thick FR4 is about 8C/W.
I meant to include the thermal conductivity that I found at
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which gives about .31 W/(m-K).
Sorry for the omission.
John S
Yup, using your 'later' number I get ~8.33C/W
That's about right. Vias can help.
--
John Larkin Highland Technology Inc
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jlarkin at highlandtechnology dot com
Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom timing and laser controllers Photonics and fiberoptic TTL data links VME analog, thermocouple, LVDT, synchro, tachometer Multichannel arbitrary waveform generators
Thanks, George. Confirmation really helps!
John S
Yes. I wanted to start with nothing else considered so I can improve as I go. Many thanks.
John S
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