Product Type: Chokes

197 Series – High Frequency Reactors


  • Perfect for high frequency filtering applications.
  • High permiability core ideal for applications under 50 kHz
  • High self-resonant frequency values
  • Operating Frequency: 60Hz – 10kHz
  • Some models feature universal channel mount packaging with flexible insulated leads (6″ min.).
  • Some models feature rugged construction with aluminum base and stainless steel band along with open-style terminals for maximum versatility.
  • Consult datasheets for further design details.
  • For applications at 60Hz, try out 195-196 Series



  • Current compensated choke
  • 3-phase choke
  • THT-terminals
  • Flange for mounting onto printed circuit board
  • Other versions on request:-4 wire versions-Customer specific pin outs

Unique Selling Proposition

  • Compact size and light weight
  • Open design for optimal cooling
  • Nanocrystalline or ferrite ring cores
  • Customer specific pin outs available


  • Frequency converter
  • Charge stations
  • UPS-systems
  • Switching power supplies

Electric Power Steering Common Mode Chokes

The HA19 common mode choke is designed specifically for noise suppression applications found in the growth and expansion of new generation vehicles such as electric vehicles (EVs) and plug-in hybrid vehicles (PHVs). The HA19 series offer high efficiency and excellent current handling in a rugged construction. It is mechanically robust and features low DC resistance and low temperature rise performance. HA19 is ideal for high efficiency electric power steering EMI applications where size and AEC-Q200 certification is critical.


  • Operating temperature range -40°C to +125°C
  • Rated current up to 44 amps
  • Ambient temperature, maximum +85°C
  • Temperature rise, maximum 40°C
  • Reduces line conducted interference
  • Low loss ferrite core
  • Proven performance in maintaining transmission signal integrity
  • Excellent performance in rugged environments
  • RoHS compliant
  • AEC-Q200 certified


  • Ideal for high frequency EPS noise suppression applications
  • Transportation
    • Electric Power Steering
    • Electronic Control Units
    • Engine Control
    • Transmission Control
  • Industrial
    • Switch Mode Power Supply
    • DC/DC Converters

Hammond Manufacturing

Hammond Manufacturing began manufacturing tube radio sets in a backyard workshop in Guelph, Canada in 1917.  In the century since, they have expanded into a global company with offices in North America, Europe, Asia, and Australia.  Hammond offers a broad range of over 12,000 standard products including electrical enclosures, electronic enclosures, industrial grade outlet strips, racks and data center infrastructure, and transformers.   Hammond serves hundreds of industries and thousands of customers.  For over 100 years, their success has come by maintaining a high level of quality and focusing on service excellence.

Triad Magnetics

Triad Magnetics’ pioneering design process promotes innovation. There are thousands of Triad Magnetics designs providing application solutions throughout the world, from data processing to telecommunications to power conversion. Our engineers are experienced in all packaging styles, even paper encapsulated units. Each engineer has direct ownership and manages projects from initial concept through production.


RCD is a US based ISO 9001/2008 manufacturer specializing in a breadth of capabilities across passive components.  40+ years of precision and power experience positions them as a leader in markets across the spectrum (instrumentation, audio, medical, military, aerospace & transportation to name just a few).  Their global agility meets the demands of service, quality, delivery and price in a changing landscape.  The RCD SWIFTTM Program is designed to be the “get out of jail” almost free card.  Don’t forget to ask us about it!

NIC Components

NIC Components Corp., a leader in passive component technologies, has been manufacturing and designing passive components for over thirty five years. From a core business of Aluminum Electrolytic Capacitors, NIC has expanded its product offering to Capacitors, Resistors and Inductors with a growing line of specialty devices including Circuit Protection, Lighting and RF Components. NIC maintains engineering, sales and warehousing globally to oversee our production facilities and work closely with the factory sites for quality assurance and best in class customer support.


KEMET Corporation is a global supplier of electronic components with over 160 patents and world-wide manufacturing plants that are leading the advancement of the most cutting-edge electrical solutions. The company offers customers the broadest selection of capacitor technologies in the industry across all dielectrics, along with an expanding range of electromechanical devices, electromagnetic compatibility solutions and supercapacitors. KEMET provides solutions for those demanding the highest standards of quality, delivery and service.