EMC / RFI Chokes RB series

Current-compensated Chokes

RB series

Current-compensated Chokes

  • Rated currents from 16 to 50 A
  • Up to 600 VAC or 1000 VDC
  • 2- and 3-wire configurations
  • Horizontal and vertical PCB mounting types
  • Ruggedized saturation and thermal behavior
  • Open construction for forced and convection cooling
  • Straightforward pin-out for easy PCB design

Features and Benefits

Cost-effective PCB designs for up to 80 A with forced cooling*
Compact size and light weight
Low magnetic leakage flux
Excellent winding insulation
Standardized foot print
Broad range of inductance ratings
Custom-specific versions on request
Evaluation Board and PCB footprints available

*See application note for forced cooling

Typical Applications

AC and DC filtering for midsize power range drives, photovoltaic inverters, fast chargers, charging stations, UPS and switch mode power supplies
Filter with low leakage current noise or improved immunity against grid disturbances
Electronic devices, automation

Technical Specifications

Rated currents

16 to 50 A @ 60°C convection cooling

Operating frequency

DC to 400 Hz

High potential test voltage


Rated inductance


Operating voltage

600 VAC

1000 VDC

Temperature range (operation and storage)

-40°C to +125°C (40/125/21) acc. IEC 60068-1


convection/forced cooling

Flammability corresponding to

UL 94 V-0

MTBF (Mil-HB-217F)

>5,000,000 h @ 50°C/400 V

Typical electrical schematic

RB series

Approvals & Compliances

RoHS Label