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DC link film capacitors suit inverter apps

Posted: 16 Mar 2011 ?? ?Print Version ?Bookmark and Share

Keywords:DC? power? film? capacitors? metallized polypropylene?

Spectrum Advanced Specialty Products rolls DC link power film capacitors that claim voltage ratings up to 1,300VDC. Wind and photovoltaic installations feature harsh operating conditions, thus, components used in power inverter applications in such installations require very long life expectancy. Spectrum's DC link power capacitors use segmented, self-healing metallized polypropylene, internally fused using a T-design pattern for a life expectancy of over 100,000 hours.

The capacitors feature ESR of 1m? to 4.3m?, typ. and ESL of 50nH to 80nH, typ. They have ripple currents up to 70A RMS from 10kHz to 100kHz, and a capacitance range of 160?F to 680?F standard. All capacitors are tested to the environmental specifications of MIL-STD-202, and come in a compact, cost-effective design. The high capacitance density and ripple current capabilities of DC power link capacitors make them suitable replacements for electrolytic capacitors.

Custom, application-specific designs are welcome, with a variety of terminations and specifications available.

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