TDK launches rugged capacitors with low self-inductance and high design flexibility

TDK launches rugged capacitors with low self-inductance and high design flexibility

TDK Corporation introduces new EPCOS film capacitors in the B3271*H* series. The new series of components is suitable for DC link applications with high energy and power density, with a rated voltage range of 500 V DC to 1600 V DC, a capacitance range of 0.47 µF to 170 µF, and an operating temperature of up to 105 °C. These robust, self-healing, RoHS-compliant components have a typical life of 95,000 hours at rated voltage and 70 °C operating temperature.

The new series of capacitors has three lead spacing options of 27.5, 37.5 and 52.5 mm, and is available in 2-pin and 4-pin versions, with more than 90 models, making the design very flexible. To this end, TDK has specially launched the CLARA tool to help users quickly select the right DC support capacitor.

The new components combine low self-inductance (only 11.5 nH to 23 nH) and high ripple current capability, making them particularly suitable for SiC-based inverters operating at high switching frequencies . In addition, they are compliant with IEC 61071, AEC-Q200 and UL 810 standards and are suitable for a wide range of typical industrial applications such as frequency converters, photovoltaic inverters, electric vehicle fast chargers, as well as automotive applications such as on-board chargers, auxiliary drives and power inverters.

Features and Applications

Main Applications

• Frequency Converter

• Photovoltaic inverter

• Electric Vehicle Fast Charger

• Car Charger

• Auxiliary drives and power inverters

Key Features and Benefits

• Voltage range: 500 V DC to 1600 V DC

• Capacitance range: 0.47 µF to 170 µF

• Maximum operating temperature: 105 °C

• 2-pin and 4-pin versions available

• Low self-inductance: only 11.5 nH to 23 nH

• High ripple current capability