DC link capacitor has 13nH ESL for fast switching

May 06, 2021 // By Nick Flaherty
DC link capacitor has 13nH ESL for high speed switching
TDK has launched a DC link capacitor series with ESL inductance down to 13nH for high speed switching designs.

The EPCOS B2563xE DC link capacitor series has rated voltages of 700 V DC to 2000 V DC and cover a capacitance range of 20 µF to 270 µF. The current handling capacity can be up to 60 A at 65 °C with the ability to tolerate current peaks of up to 7.5 kA. The maximum permissible hot spot temperature is 85 °C from the metallized polypropylene film (MKP) capacitor series.

The ESL (equivalent series inductance) can be as low as 13 nH depending on the type with ESR (equivalent series resistance) down to 0.9 mΩ. The combination of ESL and ESR means the DC link capacitor series is suitable for inverters with fast-switching power modules in photovoltaic systems, traction and indictive heating systems.

The low ESR value remains stable even at high switching frequencies of 100 kHz, while the low parasitic coefficients prevent significant voltage overshoots even when high currents are switched off.

The capacitors’ plastic cylindrical cases conform with UL 94 V0 and there are two connection types are available: M8 threaded bolts or M5 threaded holes with a diameter of 85mm and height of 50mm and 65mm.

www.tdk-electronics.tdk.com/en/power_capacitors

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