ModCap™ Modular Capacitor Concept
TDK EPCOS' ModCap is a modular capacitor concept for DC link applications. B25645A medium-frequency power capacitors are available for rated voltages of 1,100 V to 2,300 V and cover a 365 µF to 3,900 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°C.
B25647A high-frequency power capacitors are available for rated voltages from 900 V to 1,600 V and cover a capacitance spectrum from 640 µF to 1,850 µF. Depending on the type, the rated currents range from 160 A to 210 A with a maximum permitted hot spot temperature of +90°C.
Due to the nonconventional design, the capacitors can be fitted very close to IGBT modules, thus producing very short lead lengths. The very low self-inductance prevents voltage overshooting on the power semiconductors 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.
- Modular concept
- Wide voltage range: 900 V to 2,300 V
- Wide capacitance range: 365 µF to 3,900 µF maximum +90°C hotspot temperature
- Qualified according to IEC 61071, IEC 61881-1, and EN 45545-2 HL3 R23 regarding fire and smoke formation
- UL recognized
- Compact converters for traction
- Renewable energies
- Industrial applications