[amsat-bb] Antenna Burn Resistor data
ross at topwire.co.nz
Sat Sep 6 14:16:08 UTC 2014
Bob, does your mass budget allow you to include a fuse in series with
the burn resistor?
eg Looking at:
Your 15R burn resistor will draw ~ 0.5A from your 7.5V supply?
Looking at the fuse curves for the "FLAT-PAK Slo-Blo Fuse 203 Series" on
page 23 of that PDF, the 1/4A variant of those fuses should open after
about 6 seconds @ 0.5A (might blow a bit quicker in a vacuum though
since there is no atmosphere to convect heat away from the fuse?)
There will be other suitable fuses - the above is just an example (I do
not work for Littelfuse).
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