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BOOK OF ABSTRACTS 2012 International - Ness Engineering, Inc.

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REPETITIVE PULSE TESTING AND MODELING <strong>OF</strong> A HIGH POWER<br />

CERAMIC RESISTOR<br />

Daniel Muffoletto, Kevin Burke, Jennifer Zirnheld<br />

University at Buffalo, Energy Systems Institute, Buffalo, NY, USA<br />

276<br />

3P53<br />

In an effort to understand the failure mechanisms of ceramic resistors when used above their<br />

stated limits, a series of pulsed load profiles were applied to two different types of epoxy coated<br />

ceramic resistors. The load profiles that cause failure are evaluated and compared to the results of<br />

a lumped element numerical model, which models the thermal characteristics of such a resistor<br />

under test and allows for the heating profiles during operation to be predicted.

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