Open Access250°C Operating Temperature Dielectric Film Capacitors
Author(s) -
Mark N. Donhowe,
Jeff Lawler,
Sean Souffie,
Esti Stein
Publication year - 2011
Publication title -
additional conferences (device packaging hitec hiten and cicmt)
Language(s) - English
Resource type - Journals
ISSN - 2380-4491
DOI - 10.4071/hiten-paper2-mdonhowe
Subject(s) - capacitor , film capacitor , materials science , dielectric , electrolytic capacitor , capacitance , dielectric strength , dissipation factor , foil method , atmospheric temperature range , filter capacitor , optoelectronics , limiting , electrical engineering , composite material , voltage , operating temperature , engineering physics , electrode , mechanical engineering , engineering , physics , chemistry , meteorology
High operating temperature electronic components are needed for a variety of military, aerospace, down-hole, and electric vehicle applications. One of the limiting technologies is the availability of highly reliable capacitors that operate at temperatures greater than 150°C and up through 250°C. This paper introduces a high breakdown strength dielectric film Gore has developed for metallized film capacitors. In addition to exceptionally high breakdown voltages, the 6 μm PTFE film exhibits low dissipation factor and stable capacitance over a wide temperature range. Film properties were tested from −50°C to 250°C and both wound film/foil and metallized film capacitors were fabricated and tested from RT to 300°C.
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