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Commercial SMPS Capacitors

Thu, 08/30/2001 - 9:29am
AVX Corp. has recently introduced the SE Series MLC capacitors, designed for input and output filtering in switchmode power supplies. These SMPS capacitors are radial leaded, conformally coated and specially processed to handle high currents.

Offered in X7R dielectric, the SE Series' specifications compare favorably to high CV ranges offered by other suppliers in the much less stable Y5U dielectric. They offer significant capacitance extension beyond the popular SK Series ranges. These SMPS capacitors are available in voltage ratings up to 100 VDC, with capacitance ratings of up to 39 μF. Additionally, the maximum CV rating for SE Series capacitors improves the volumetric efficiency by a factor of three beyond SK Series ranges.

The SE Series SMPS Series capacitors offer a commercially viable, low cost part, specifically designed for high current applications. They provide design engineers with improved volumetric efficiency in a smaller package size. SMPS Series capacitors are primarily used in input/output filters of high power and high voltage power supplies as well as in bus filters and DC snubbers for high power inverters and other high current applications. The SE Series capacitors are available in X7R dielectric, with five standard sizes and three voltage ratings: 25 VDC, 50 VDC and 100 VDC, capacitance values range from 0.33 μF to 39 μF. Operating temperature range is -55°C to +125°C.

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