Schaffner EMC Inc

RFI Suppression Chokes

Schaffner EMC features their RN series current-compensated chokes and EV/EH series common-mode suppression chokes

Image of Schaffner's EMC RFI Suppression Chokes

RN Series Current-Compensated Chokes

Schaffner's RN chokes attenuate common-mode or asymmetric (P/N -> E) interference signals by being placed in series with the phase and neutral lines of an AC power input. Symmetrical components of the noise are also attenuated by the leakage inductance of the windings. These chokes are typically used in conjunction with suppression capacitors.

Features Applications
  • High saturation resistance and excellent thermal behavior
  • Through-hole pin connections
  • Dual-choke configuration
  • Small compact design
  • Multiple housing options
  • Phase-angle control circuits in combination with saturating chokes
  • EMI input filters
  • For suppressing equipment with no earth connection
  • Suppressing high interference levels

EV/EH Series Common-mode Suppression Chokes

Common-mode suppression chokes are mainly used to filter noise on AC power lines. Noise from commercial power lines often enters equipment and disturb the proper function. Also, noise generated by equipment such as switching-mode power supplies needs to be filtered and suppressed. Common-mode suppression chokes are combined together with line bypass capacitors building an AC EMI suppression filter device.

Features Applications
  • Rated currents up to 5 A
  • Compact and light weight
  • Low magnetic leakage flux
  • Sectional winding
  • Standard foot print
  • Broad range of available inductances and current ratings
  • Input filters for switching mode power supplies
  • Filters to reduce leaking noise
  • TVs, VCRs, multimedia and audio equipment
  • Office automation, communications and other electronic devices
  • Electric ballast
  • AC/AC converters

RN Series

ImageManufacturer Part NumberDescriptionAvailable QuantityPrice
CMC 12MH 300MA 2LN THRN102-0.3-02-12MCMC 12MH 300MA 2LN TH7630 - Immediate$11.32View Details
CMC 3MH 1A 2LN THRN102-1-02-3M0CMC 3MH 1A 2LN TH11905 - Immediate$11.70View Details
CMC 10MH 800MA 2LN THRN112-0.8-02-10MCMC 10MH 800MA 2LN TH6265 - Immediate$11.96View Details
CMC 1.6MH 1.5A 2LN THRN102-1.5-02-1M6CMC 1.6MH 1.5A 2LN TH3422 - Immediate$11.96View Details
CMC 4.4MH 600MA 2LN THRN202-0.6-02-4M4CMC 4.4MH 600MA 2LN TH350 - Immediate$12.02View Details
CMC 1.1MH 2A 2LN THRN102-2-02-1M1CMC 1.1MH 2A 2LN TH12347 - Immediate$12.15View Details
CMC 4.4MH 600MA 2LN THRN102-0.6-02-4M4CMC 4.4MH 600MA 2LN TH4379 - Immediate$12.22View Details
CMC 6.8MH 1.2A 2LN THRN112-1.2-02-6M8CMC 6.8MH 1.2A 2LN TH1031 - Immediate$12.35View Details
CMC 39MH 400MA 2LN THRN112-0.4-02-39MCMC 39MH 400MA 2LN TH6265 - Immediate$12.47View Details
CMC 700UH 4A 2LN THRN112-4-02-0M7CMC 700UH 4A 2LN TH5400 - Immediate$12.60View Details

EV Series

ImageManufacturer Part NumberDescriptionAvailable QuantityPrice
CMC 33MH 300MA 2LN THEV20-0.3-02-33MCMC 33MH 300MA 2LN TH983 - Immediate$15.30View Details
CMC 820UH 2A 2LN THEV20-2.0-02-0M8CMC 820UH 2A 2LN TH12824 - Immediate$15.69View Details
CMC 5MH 3A 2LN THEV28-3.0-02-5M0CMC 5MH 3A 2LN TH7389 - Immediate$27.46View Details
CMC 3.6MH 5A 2LN THEV35-5.0-02-3M6CMC 3.6MH 5A 2LN TH522 - Immediate$47.00View Details
CMC 3.3MH 1.2A 2LN THEV20-1.2-02-3M3CMC 3.3MH 1.2A 2LN TH527 - Immediate$16.01View Details
CMC 18MH 800MA 2LN THEV24-0.8-02-18MCMC 18MH 800MA 2LN TH444 - Immediate$20.00View Details
CMC 2.5MH 2A 2LN THEV24-2.0-02-2M5CMC 2.5MH 2A 2LN TH505 - Immediate$20.25View Details
CMC 36MH 1A 2LN THEV28-1.0-02-36MCMC 36MH 1A 2LN TH500 - Immediate$26.36View Details
CMC 20MH 1.5A 2LN THEV28-1.5-02-20MCMC 20MH 1.5A 2LN TH299 - Immediate$26.62View Details
CMC 1.1MH 5A 2LN THEV28-5.0-02-1M1CMC 1.1MH 5A 2LN TH443 - Immediate$27.13View Details

EH Series

ImageManufacturer Part NumberDescriptionAvailable QuantityPrice
CMC 33MH 300MA 2LN THEH20-0.3-02-33MCMC 33MH 300MA 2LN TH226 - Immediate$14.72View Details
CMC 4.5MH 1.5A 2LN THEH24-1.5-02-4M5CMC 4.5MH 1.5A 2LN TH2454 - Immediate$19.87View Details
CMC 1.2MH 3A 2LN THEH24-3.0-02-1M2CMC 1.2MH 3A 2LN TH560 - Immediate$20.13View Details
CMC 500UH 4A 2LN THEH24-4.0-02-0M5CMC 500UH 4A 2LN TH214 - Immediate$20.58View Details
CMC 5MH 3A 2LN THEH28-3.0-02-5M0CMC 5MH 3A 2LN TH434 - Immediate$25.40View Details
CMC 2.3MH 4A 2LN THEH28-4.0-02-2M3CMC 2.3MH 4A 2LN TH186 - Immediate$25.53View Details
CMC 9MH 3A 2LN THEH28-3.0-02-9M0-XCMC 9MH 3A 2LN TH344 - Immediate$26.36View Details
CMC 3.5MH 4A 2LN THEH28-4.0-02-3M5-XCMC 3.5MH 4A 2LN TH243 - Immediate$26.88View Details
CMC 3.6MH 5A 2LN THEH35-5.0-02-3M6CMC 3.6MH 5A 2LN TH192 - Immediate$51.70View Details
CMC 820UH 2A 2LN THEH20-2.0-02-0M8CMC 820UH 2A 2LN TH224 - Immediate$15.30View Details
Published: 2009-07-07

Related Product Highlight

RN Series Chokes Schaffner’s RN Series of chokes are comprised of two winding inductors over a ferrite ring core to offering common mode current-compensated inductance.

Related Product Training Modules

RN Choke Series Learn about the RN current-compensated RFI suppression choke series