New cost-effective metallized polypropylene film capacitors for industrial and automotive applications

Panasonic Industry Europe announces the release of its new ECWFJ series of metallized polypropylene film capacitors, developed to support cost-effective designs while maintaining a high level of safety and long-term reliability. The new series is aimed at engineers working across industrial and automotive power electronics (it is qualified to AEC-Q200 standards) who require dependable performance under demanding environmental conditions.

The ECWFJ series demonstrates proven resistance to moisture, maintaining stable operation under conditions of 40°C and 95% relative humidity for up to 1.000 hours. This ensures long-term reliability even in humid environments, while still offering a cost-efficient solution. As a result, the capacitors are well suited for a broad range of industrial uses as well as automotive applications.

Typical application areas include electric mobility systems such as DC/DC converters, on-board chargers and e-compressors, along with solar inverters and EV charging infrastructure. The series is also designed for use in industrial power supplies, LED lighting, smart meters and embedded power systems, where consistent electrical performance and durability are essential.

Technically, the ECWFJ series covers voltage ratings from 600V up to 1.100V DC. Capacitance values range from 1µF up to 12µF. The capacitors operate across a temperature range from -40°C up to +110°C, with the 1.000V variant rated up to 105°C. The devices are engineered to withstand thermal shock from -55°C up to 85°C over 1.000 cycles and can tolerate maximum ambient temperatures of up to 125°C for limited durations.

Panasonic’s proprietary patterned metallization with an integrated fuse mechanism helps ensure stable capacitance over the lifetime of the component and enhances overall system reliability. The design is complemented by a flame-retardant plastic enclosure and non-conductive resin, supporting compliance with UL and other regulatory standards. In addition, the capacitors are fully compliant with RoHS requirements.

For more information about Panasonic’s new ECWFJ series of metallized polypropylene film capacitors please visit our Product Finder.