Passive Components


Rugged DC link capacitors

15 August 2018 Passive Components

TDK has extended its range of EPCOS film capacitors for DC link applications. The B3277*H series now provides types for particularly harsh environmental conditions. The robustness has been verified in a temperature, humidity, bias (THB) test at 60°C, 95% relative humidity, and the rated voltage for 1000 hours. Special types are also available that are THB tested at 85°C, 85% relative humidity, and the rated voltage for 1000 hours.

The capacitors are designed for rated voltages of between 450 V d.c. and 1100 V d.c. and offer capacitance values of between 1,5 μF and 120 μF. The maximum operating temperature of the RoHS-compatible components is 105°C. Depending on voltage and capacitance, the lead spacing is 27,5 mm, 37,5 mm or 52,5 mm. The types with the latter grid size are offered exclusively in a 4-pin version. At the rated voltage and an operating temperature of 85°C the service life of the self-healing capacitors is 50 000 hours.

Applications include the DC link circuits of converters for photovoltaic systems, frequency converters and power supplies for industrial applications. AEC-Q200 qualified capacitors are also available on request.

For more information contact Deon Schoombee, Electrocomp, +27 11 458 9000, [email protected], www.electrocomp.co.za



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