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 TH1700 - Immediate$1.71View Details
CMC 3MH 1A 2LN THRN102-1-02-3M0CMC 3MH 1A 2LN TH11765 - Immediate$1.82View Details
CMC 4.4MH 600MA 2LN THRN102-0.6-02-4M4CMC 4.4MH 600MA 2LN TH4379 - Immediate$1.84View Details
CMC 10MH 800MA 2LN THRN112-0.8-02-10MCMC 10MH 800MA 2LN TH6765 - Immediate$1.86View Details
CMC 6.8MH 1.2A 2LN THRN112-1.2-02-6M8CMC 6.8MH 1.2A 2LN TH1031 - Immediate$1.86View Details
CMC 4.4MH 600MA 2LN THRN202-0.6-02-4M4CMC 4.4MH 600MA 2LN TH350 - Immediate$1.87View Details
CMC 1.1MH 2A 2LN THRN102-2-02-1M1CMC 1.1MH 2A 2LN TH12403 - Immediate$1.89View Details
CMC 39MH 400MA 2LN THRN112-0.4-02-39MCMC 39MH 400MA 2LN TH6270 - Immediate$1.94View Details
CMC 15MH 600MA 2LN THRN212-0.6-02-15MCMC 15MH 600MA 2LN TH6326 - Immediate$1.98View Details
CMC 15MH 1A 2LN THRN114-1-02-15MCMC 15MH 1A 2LN TH6049 - Immediate$2.02View Details

EV Series

ImageManufacturer Part NumberDescriptionAvailable QuantityPrice
CMC 33MH 300MA 2LN THEV20-0.3-02-33MCMC 33MH 300MA 2LN TH1093 - Immediate$2.31View Details
CMC 820UH 2A 2LN THEV20-2.0-02-0M8CMC 820UH 2A 2LN TH12824 - Immediate$2.37View Details
CMC 5MH 3A 2LN THEV28-3.0-02-5M0CMC 5MH 3A 2LN TH7389 - Immediate$4.14View Details
CMC 3.6MH 5A 2LN THEV35-5.0-02-3M6CMC 3.6MH 5A 2LN TH522 - Immediate$7.31View Details
CMC 3.3MH 1.2A 2LN THEV20-1.2-02-3M3CMC 3.3MH 1.2A 2LN TH527 - Immediate$2.42View Details
CMC 18MH 800MA 2LN THEV24-0.8-02-18MCMC 18MH 800MA 2LN TH444 - Immediate$3.02View Details
CMC 2.5MH 2A 2LN THEV24-2.0-02-2M5CMC 2.5MH 2A 2LN TH505 - Immediate$3.06View Details
CMC 36MH 1A 2LN THEV28-1.0-02-36MCMC 36MH 1A 2LN TH500 - Immediate$3.98View Details
CMC 20MH 1.5A 2LN THEV28-1.5-02-20MCMC 20MH 1.5A 2LN TH299 - Immediate$4.02View Details
CMC 1.1MH 5A 2LN THEV28-5.0-02-1M1CMC 1.1MH 5A 2LN TH443 - Immediate$4.22View Details

EH Series

ImageManufacturer Part NumberDescriptionAvailable QuantityPrice
CMC 33MH 300MA 2LN THEH20-0.3-02-33MCMC 33MH 300MA 2LN TH226 - Immediate$2.22View Details
CMC 4.5MH 1.5A 2LN THEH24-1.5-02-4M5CMC 4.5MH 1.5A 2LN TH2454 - Immediate$3.00View Details
CMC 1.2MH 3A 2LN THEH24-3.0-02-1M2CMC 1.2MH 3A 2LN TH560 - Immediate$3.04View Details
CMC 500UH 4A 2LN THEH24-4.0-02-0M5CMC 500UH 4A 2LN TH214 - Immediate$3.10View Details
CMC 5MH 3A 2LN THEH28-3.0-02-5M0CMC 5MH 3A 2LN TH434 - Immediate$3.83View Details
CMC 2.3MH 4A 2LN THEH28-4.0-02-2M3CMC 2.3MH 4A 2LN TH186 - Immediate$3.85View Details
CMC 9MH 3A 2LN THEH28-3.0-02-9M0-XCMC 9MH 3A 2LN TH344 - Immediate$3.98View Details
CMC 3.5MH 4A 2LN THEH28-4.0-02-3M5-XCMC 3.5MH 4A 2LN TH243 - Immediate$4.06View Details
CMC 3.6MH 5A 2LN THEH35-5.0-02-3M6CMC 3.6MH 5A 2LN TH192 - Immediate$7.81View Details
CMC 820UH 2A 2LN THEH20-2.0-02-0M8CMC 820UH 2A 2LN TH224 - Immediate$2.38View 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