Film capacitor withstands high humidity

19th January 2018
Mick Elliott

A film capacitor that maintains exceptionally high robustness under high humidity is available from New Yorker Electronics. The Vishay Roederstein MKP1847H AC Filtering Metallised Polypropylene Film Capacitors feature maximum continuous AC voltages of 250VAC, 310VAC, 350VAC and 480VAC (50Hz / 60Hz range).

Designed to withstand high humidity environments, the Vishay Roederstein capacitor series is ideal for use in outdoor functions, renewable energy, welding equipment and more. It is intended for high power supplies and large drive applications.

The device is Temperature Humidity Bias (THB) Capacitor Grade III – rated at 85°C, 85% relative humidity and 1000 hours at rated UNAC.

Another important feature is the segmented film with segmented metallised electrodes to prevent full capacitor burnout.

It has a rated capacitance range of 1µF to 36µF and capacitance tolerances of ±10- and ±5-percent.

Applications include Inverters and Converters, High Power Supplies and Large Drives, Renewable Energy, Welding Equipment, AC Harmonic Filters and Uninterruptible Power Supply (UPS) Systems.

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