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
- posted
10 years ago
FR4 thermal calcs sanity check
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- posted
10 years ago
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
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- posted
10 years ago
Yup, using your 'later' number I get ~8.33C/W
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- posted
10 years ago
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
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- posted
10 years ago
Thanks, George. Confirmation really helps!
John S
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- posted
10 years ago
Yes. I wanted to start with nothing else considered so I can improve as I go. Many thanks.
John S