X1 Capacitors Expanded to 530 VAC

TDK announces EPCOS' X1 capacitors for EMI suppression

Image of EPCOS X1 CapacitorsThe EPCOS X1 capacitors have been designed for an extended operating voltage of up to 530 VAC. The new capacitors are ideally suited for EMI suppression in X1 circuits (L-N). The types in the B32911 through B32916 series cover a broad capacitance range from 1 nF to 5.6 μF. In addition, they feature a compact design: their dimensions range from 4.0 mm x 9.0 mm x 13.0 mm to 35 mm x 50 mm x 57.5 mm, depending on the capacitance, with lead spacings of between 10 mm and 52.5 mm. The types with capacitance values of 4.7 μF and 5.6 μF are equipped with 4 pins for improved mechanical stability on the PCB.

The permissible operating temperature range is from -40°C to +110°C. Like all EPCOS MKP capacitors, the new types also feature high rated voltages and excellent self-healing properties. The series is certified according to ENEC, UL, and CSA. Typical applications include power supplies of all kinds and frequency converters.


  • Increased operating voltage up to 530 VAC
  • Broad capacitance range from 1 nF to 5.6 μF
  • Compact dimensions
  • Improved mechanical stability due to 4-pin design (for 4.7 μF and 5.6 μF versions)

X1 Capacitors

ImageManufacturer Part NumberDescriptionCapacitanceAvailable Quantity
CAP FILM 4.7UF 20% 1KVDC RADIALB32918A5475M000CAP FILM 4.7UF 20% 1KVDC RADIAL4.7µF260 - ImmediateView Details
CAP FILM 5.6UF 20% 1KVDC RADIALB32918A5565MCAP FILM 5.6UF 20% 1KVDC RADIAL5.6µF0View Details
Published: 2015-04-27