TDK Corporation presents a series of robust EPCOS MKP film capacitors (B3275*) that are optimised for use with AC voltages with high ripple currents. The new types are available for rated voltages of 250 VRMS, 275 VRMS and 310 VRMS and cover a capacitance range from 1 µF to 70 µF.

One particuar feature is their extreme robustness: 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. Depending on capacitance and voltage class, the lead spacings are 27.5mm, 37.5mm or 52.5mm, 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% of rated voltage. Typical applications for the new EPCOS MKP capacitors are the output filters of frequency converters, uninterruptible power supplies and variable-speed drives.

Main applications

  • Output filters of converters
  • Uninterruptible power supplies
  • Controlled drives

Main Features

  • Extreme robustness, verified in a THB test at 60°C, 95 percent relative humidity and a rated voltage applied for 1000 hours
  • Long expected lifetime of more than 60,000 hours at a temperature of 70°C and 90% of the rated voltage