B25654A Series xEVCap DC Link Capacitors

TDK Corporation xEVCap standardized and modular DC link capacitors are designed for powertrain inverters in passenger cars, commercial and off-highway vehicles, and machinery tools. Typically, such capacitor designs are fully customized, making development time-consuming and practical only in large production volumes. If the customer requirements change during the project, this can further increase the time required for capacitor development and thus delay the overall project.

With the scalable and modular xEVCap, TDK helps inverter designers meet varying capacitance and current requirements at lower volumes while saving valuable time. This approach also reduces costs by utilizing standardized capacitor modules, which minimizes the variety of components that need to be stocked. Multiple xEVCaps can be easily connected in parallel to meet different capacitance and current requirements. The complete capacitance range complies with the AEC-Q200 Rev. E and IEC TS 63337:2024 automotive standards.

The xEVCap has lead wires for soldering to busbars or PCBs. Each variant is available in multiple different mechanical versions and voltage levels. The mechanical versions are 85 mm x 47 mm x 40.5 mm, 97.5 x 35.5 x 42.5 mm, and 109 mm x 47 mm x 40.5 mm (L x W x H). Corresponding with rated voltages, components for 500 V, 650 V, 850 V, and 920 V are available. Depending on the rated voltages, the capacitances range from 60 µF up to 270 µF.

For a limited time, the applied voltage can exceed the rated voltage. For example, the 850 V types can withstand 890 V for 100 hours at +105°C and surge voltages of up to 1200 V. Rated currents range from 35 A to 60 A (at 10 kHz) with ESL values of 14 nH or 17 nH (at 1 MHz). The operating temperature range is -40°C to +105°C.