Electromagnetic Integrated Solutions: +1(814) 474-1571

Filtered Combo D-Subminiature Connectors

D Style EMI Filtered Connectors

API Technologies' line of filtered combo D-subminature connectors provide high insertion loss with tubular or chip capacitor filtering. These connectors are available with 20 Amp power contacts, 40 Amp power contacts, 50 ohm coaxial contacts or 75 ohm coaxial contacts. Configurations include male and female versions with straight PC terminals, right angle PC terminals or solder cup terminals. Standard D-sub shell sizes provide intermateability with unfiltered connectors. High strength epoxy potting protects ceramic elements.

Capacitive filtering is available in 470, 820, 1000 and 1500 pF. Additional capacitance ranges and configurations can be provided upon request. Please consult factory for more information.



  • Multiple connector options including: threaded inserts, grounding bracket, stand-off with board lock feature, grounding bracket with board lock, gold plating, and water block
  • Design flexibility: 9 through 50 line construction, high density, mixed pin loading and selectively loaded lines
  • Capact Design: interchangeable with standard D-Subminiature Connectors
  • Performance: gold plated connects
  • Superior filtering at high frequency interference
  • Numerous options: hardware, mounting, waved metal gaskets, hooded strain reliefs, combined filter types and plating


  • Telecommunications base station equipment
  • Switching and transmission equipment
  • Power supplies
  • Indistrial equipment
  • Computer work stations


Filtered Combo D-Subminiature Connectors Specifications

Mechanical & Electrical Specifications

Shell Steel, tin plated
Power Contacts Brass, gold plated .000030in (.000762 µm) minimum
Signal Contacts Pin: brass, gold plated .000030in. (.000762µm) minimum
Socket: copper alloy, gold plated .000030 in. (.ooo762µm) min.
Insulator Glass-filled polyester, flammability UL94 V-0
Operating Temperature -55°C to +125°C
Capacitors Proprietay barium titanate ceramic formulations
Operating Voltage 200 VDC
Current Rating 40 amps
Insulation Resistance 1 Gohm at 100 VDC
Capacitance 470, 820, 1,000, 1,500, or 4,000 pF (FT only) ±20%
(10-5,000 pF available for signal pins, concult factory for part number on values above 1,500 pF and below 470 pF)
Dielectric Withstanding Voltage 600VDC