TDK Corporation has extended its range of EPCOS film capacitors for DC link applications. The B3277xH 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 percent relative humidity, and the rated voltage for 1,000 hours. Types are also available that are THB tested at +85°C, 85 percent relative humidity, and the rated voltage for 1,000 hours.

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 52.55 mm 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.