Popular Film Capacitors Extend Range

TDK has extended its range of EPCOS film capacitors for dc link applications. The B3277H series now provides types for 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 Vdc and 1.1 kVdc, 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 four-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. For further information, DATASHEETS are available.

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