TDK Corporation has unveiled its new EPCOS B3264xH series of double-sided metallized polypropylene film capacitors (MMKP), specifically engineered for high-frequency applications that involve extreme pulse stresses—up to 6,500 V/µs—where conventional solutions may not suffice. These capacitors are particularly well-suited for resonant circuits such as the widely used LLC topology.
Thanks to their compact footprint and AEC-Q200 qualification, the B3264xH series is ideal for use in onboard chargers (OBCs) and DC-DC converters in electric vehicles (xEVs), as well as in uninterruptible power supplies (UPS), industrial switch-mode power supplies (SMPS), and electronic ballasts.
The series supports a broad rated DC voltage range from 630 V to 2000 V and covers capacitance values from 2.2 µF to 470 µF. Built with a unique dielectric structure combining polypropylene and double-sided metallized PET film, the capacitors offer outstanding pulse durability and current-handling performance. They are rated for continuous operation across a wide temperature range—from -55 °C to +125 °C—ensuring reliability under demanding environmental conditions.
Key performance highlights include high insulation resistance, a low dissipation factor, and excellent self-healing capabilities. These features contribute to a long service life of up to 200,000 hours at +85 °C and full rated voltage. The capacitors come in three lead spacing options—10 mm, 15 mm, and 22.5 mm—providing flexibility for integration into space-constrained circuit designs.
By combining high electrical performance with automotive-grade robustness, TDK’s B3264xH series empowers designers to enhance efficiency and durability in both automotive and industrial power electronics systems.
Simulation models for various SPICE versions and ANSYS are available for download to support design and integration.
