Differential Mode Choke Coil

Differential mode electromagnetic noise is conducted on the supply and ground lines in opposite directions. The reason for the noise is because cross-cancelling does not happen effectively.

This type of noise is suppressed by installing a filter on the on the signal /power supply line.

Designing filters with differential mode chokes is an economic way to combine low losses, low voltage drop, minimal signal impact with efficient EMC/EMI filtering.

  • Voltage Range

    250 VAC

  • Current Range

    0.5A to 25A @40°C

  • Application

    DC to DC Converters

  • Operating Frequency


  • Mounting

    Vertical / Horizontal

Product Specification


  • Compact and Cost Effective
  • Rated Current up to 25A
  • Coil with Different foot Print.
  • Excellent Differential Mode Suppression.


  • Power Systems – Signal lines, UPS/Inverters, Fuel Cells, Chargers
  • Industrial equipment – VFD / Stepper motor drives, HVAC, Elevators, Welding units
  • Test and measurement equipment
  • Medical – MRI rooms, scanners, diagnostic equipment
  • Military applications – Radar, Satellite systems

What EMIS Offers

EMIS range of Differential mode Choke coils are designed for use in a wide range of applications, to suppress DM noise. The common mode choke provides saturation which enables effective Differential mode suppression.

Magnetic material called ferrite is most commonly used in construction. These Chokes can be used in various AC and DC Applications.

  • Compact and cost effective
  • Rated Current up to 25A
  • Coil with different foot print options
  • Horizontal and vertical mounting options