Robust film capacitors for AC applications

Robust film capacitors for AC applications

New Products |
By Nick Flaherty

The EPCOS MKP B3275 capacitors have rated voltages of 250 VRMS, 275 VRMS and 310 VRMS and cover a capacitance range from 1 µF to 70 µF.

One particular feature is the robustness, as the capacitors pass a THB test (temperature, humidity, bias) at 60 °C, 95 percent relative humidity and a rated voltage applied for 1000 hours.

The MKP film capacitors are designed for a maximum operating temperature of 105 °C: Both their case and the epoxy resin sealing comply with UL 94 V-0 and depending on capacitance and voltage class, the lead spacings are 27.5 mm, 37.5 mm or 52.5 mm, with 4-pin versions offered for the two larger lead spacings.

The capacitors feature a long expected lifetime of more than 60,000 hours at a temperature of 70 °C and 90 percent of the rated voltage. Typical applications are the output filters of frequency converters, uninterruptible power supplies and variable-speed drives.

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