EMC / RFI Chokes RD series

Current-compensated Chokes

RD series

Current-compensated Chokes

  • Rated currents from 6 to 64 A
  • Up to 600 VAC or 850 VDC
  • DC to 400 Hz frequencies
  • Dual, triple and quad-choke configurations

Features and Benefits

High saturation resistance and excellent thermal behavior
Through hole or wire connections
Dual, triple and quad-choke configuration
Up to 64 A quad configuration
Multiple housing options
Custom-specific versions are available on request

Typical Applications

Phase-angle control circuits in combination with saturating chokes
EMI input filters
For suppressing equipment with no earth connection
Suppressing high interference levels

Technical Specifications

Rated currents

6 to 64 A @ 40°C

Operating frequency

DC to 400 Hz

High potential test voltage



4000 VAC, 60 sec, guaranteed


2500 V, 50 Hz, 2 sec, factory test

2500 VAC, 60 sec, guaranteed

Rated inductance

0.2 to 25 MILLIHENRY

Operating voltage

600 VAC/850 VDC

Surge current @ 10 msec

20 x I<sub>N</sub> @ 25 °C

Temperature range (operation and storage)

-25°C to +110°C (25/110/21)

Flammability corresponding to

UL 94 V-0 (insulation tubes UL 94 V-2)

MTBF (Mil-HB-217F)

>5,000,000 h @ 40°C/650 V

Approvals & Compliances

RoHS Label