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Home » News » TDK releases ModCap – a modular capacitor concept for DC link applications

TDK releases ModCap – a modular capacitor concept for DC link applications

By November 11, 2020 5:12 pm IST

TDK releases ModCap – a modular capacitor concept for DC link applications
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TDK Corporation releases ModCap − a modular capacitor concept for DC link applications. The newly developed power capacitors are available for rated voltages of 1100 V to 2300 V and cover a 365 µF to 2525 µF capacitance range. The rated currents between 105 A and 180 A are type-conditioned with all types designed for 5 kA recurrent pulse currents. The maximum permitted hot spot temperature is 90-degree C.

In contrast to conventional cylindrical designs, the B25645A capacitor series are cubic in design and available in two versions of either 243 x 169.5 x 90 mm or 258 x 215 x 115 mm. Due to this design, the capacitors can be fitted very close to IGBT modules, thus producing very short lead lengths. This, combined with a very low 14 nH self-inductance of the capacitors, stops any substantial voltage overshooting at the IGBT modules when the current is shut off. As a result, generally no snubber capacitors are needed. This design also makes parallel connections of capacitors easy. Typical applications are compact converters for traction, renewable energies and industrial applications.

The artificial resin-filled plastic housings comply with UL94 V-0. In addition, the fire and smoke formation requirements, in line with IEC 61071, IEC 61881-1, EN 45545-2 HL3 R23, are met. This makes these capacitors well suited for use in trains.

Main applications include: Compact converters for traction, renewable energies, and industrial applications.

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