Most of us know that a resistor can take very high pulse power if the pulse width is much less than the thermal time constant. My problem is, if the thermal time-constant isn't specified or tested, or if there's no chart of pulse power vs time, we can't use it. (per our customers reliability Engineer). The peak power of these pulses could be 10 or 20 times higher than the rating of the part. Does anyone know of a current-sense resistor (< 0.1 Ohm) which has curves published in the data sheet for pulse duty cycle?
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