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Ferrite Filtered D-Sub Connectors

EMI Filtered D-Subminiature Connectors

Series F Ferrite Filtered D-Sub Connectors

The Series F filtered D-subminiature connectors, previously referred to as Series 400, incorporate a solid slab of ferrite material as the filtering element. This rugged one piece design provides a compact connector that is a drop-in replacement for standard connectors. The ferrite material has been chosen for optimum filtering performance in the 10 to 300 MHz range.



  • Low cost, high performance ferrite filter
  • No distortion of wave forms
  • Replaces individual ferrite bead filters, saving cost and space
  • Provides both pin to ground and pin to pin filtering
  • Effective in helping meet requirements of FCC, VDE, EN55022 and Japan's VCCI
  • Short, space saving .318" footprint
  • Interchangeable with standard D-subminiature connectors
  • Can be installed directly over PCB trace pattern with no shorting
  • 4-40 UNC locking insert shell eliminates loose hardware
  • Metal shielding front shell
  • Gold plated contacts
  • RoHS compliant with exemption 7. Full compliant versions available.


  • Peripheral & terminal equipment
  • Micro-computer-applied products
  • Personal computer
  • Eliminates common-mode noise along data lines in data communication terminals and digital equipment


Ferrite Filtered Connectors Specifications

Typical Insertion Loss

Series F Ferrite Filtered D-Sub Connectors graph

Mechanical & Electrical Specifications

Shell Steel, tin plated
Housing UL 94V-0 Rated thermoplastic, black
Contacts Phosphor Bronze (sockets) or Brass (pins)
Contact Plating Gold Flash (,10µin.) over nickel
Frequency Range 10-300 MHz
Current Rating 5 amps
Dielectric WIthstanding Voltage 1000 VAC for one minute
Insulator Resistance 1000 Megaohms min. @ 500 VDC