Film capacitors for DC filtering

March 25, 2014 // By Graham Prophet
Available in large case sizes up to 35L, AVX’ evolution of its FFLC series of medium-power film capacitors exhibit higher specific energy than equivalent solutions and feature AVX’s controlled self-healing technology, enabling safe, high reliability, long lifetime performance

Available in large case sizes up to 35 litres, the new FFLC Series capacitors exhibit higher specific energy than equivalent solutions (up to 240J/l) and feature AVX’s controlled self-healing technology, which enables safe, high reliability, long lifetime performance with no risk of explosion. Also available with a low stray-inductance option that tolerates high frequency ripple current, the series is ideal for DC filtering in any variety of power conversion applications, but is particularly well-suited for applications that require enhanced safety and reliability, including: rail applications, such as main or auxiliary inverters; new energy applications, such as wind turbines and solar PV inverters; and industrial applications, such as motor drives.

Using metallised, segmented polypropylene film encased in unpainted, rectangular, resin-filled aluminium cases, FFLC Series capacitors have either four M8/15 female connections or four M12/30 male connections. Voltage ratings for the series span 800V to 1350V, capacitance values span 1750 µF to 20,600 µF, and parasitic inductance values span 32 nH to 55 nH. Exhibiting a ±10% tolerance, FFLC Series capacitors feature a maximum RMS current value of up to 400A and an average lifetime of 100,000 hours at rated DC voltage, 70°C hot-spot temperature, and a <2% change in capacitance value.

AVX; http://avx.com/docs/Catalogs/fflc.pdf