AC Filter Caps Get An Upgrade


TDK has updated its EPCOS B32754 to B32758 series ac filter capacitors to now cover a range of voltages from 250 to 400 Vac and offer capacitances of between 1 µF and 70 µF. The capacitors comply with IEC 61071: 2007 and are said to be extremely robust, even at high humidity, verified in a temperature, humidity, bias (THB) test at 60°C, 95% relative humidity, and an applied rated voltage for 1,344 hours, corresponding to 56 days, in according to IEC 60384 14:2013/AMD1:2016 Grade 3 Test A.


The capacitors are designed for a maximum operating temperature of +105°C, and their epoxy resin-filled case conforms to UL 94 V-0. Depending on capacitance and rated voltage, the lead spacing is 27.7 mm, 37.5 mm, or 52.5 mm.

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The capacitors are suitable for demanding applications in industrial electronics such as output filtering for power supplies, frequency converters for drives and renewable energy, and/or UPS systems. For more details, visit TDK Corporation.