TDK presents a standardized and modular DC link capacitor design – xEVCap – for powertrain inverters in passenger cars, commercial and off-highway vehicles, and machinery tools. This approach helps inverter designers meet varying capacitance and current requirements for lower volume applications while saving valuable development time thanks to the modularity and scalability of the xEVCap solution.

Features & benefits

• Scalable and modular for different power levels and densities
• Compatible with wide bandgap power semiconductor (SiC, GaN)
• Good self-healing properties
• Low ESR and low ESL
• Compliant to IEC TS 6337:2024
• Compliant to AEC-Q200 Rev E (lead wire versions)

Applications

• DC link for main traction inverters in passenger cars, commercial and off-highway vehicles and machinery tools.

Explore more about xEVCap

The B3272*A/G/T series of DC-link film capacitors are qualified for continuous operation at case temperatures of up to +135 °C, with no derating required up to +105 °C. These components feature an EPN dielectric. This blend of polypropylene (PP) and cyclic olefin copolymer (COC) has already been proven in TDK’s ModCap UHP power capacitors. This allows DC-link designs for demanding automotive and industrial power electronics applications to have greater thermal headroom.

The B3271xP series of DC link film capacitors offering high thermal robustness for demanding automotive and industrial power electronics. With a maximum operating temperature of +125 °C and no power derating up to +105 °C, the series ensures stable capacitance and reliable energy buffering even in tightly packed inverter environments. This performance is particularly relevant for xEV traction inverters, onboard chargers, and DC-DC converters, where elevated ambient temperatures and continuous ripple loads are common.