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Low Profile EMI Filter D-Sub Connectors

The low profile d-sub Series 500  EMI filtered connectors are cost-effective, highly reliable and feature a .318" footprint for 90 degrees PCB connectors and a low profile housing on straight PCB connectors. These low profile EMI filter connectors are "drop-in" replacements for standard unfiltered d-sub connectors.

Low profile EMI filter d-sub connectors solve FCC/EC/VCCI emissions problems. These connectors protect equipment from external EMI noise and eliminate system glitches.

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Low Profile EMI Filter D-Sub Connector Features

  • "Drop-in" replacements for unfiltered d-sub connectors
  • Compact design, featuring .318" footprint
  • Tubular feedthrough capacitors provide EMI filtering superior to on-board components
  • The ground plane design provides EMI shielding
  • Full interchangeability; based on MIL-C-24308
  • Each connector position is tested 100% for critical electrical parameters to ensure consistent performance
  • Insulators are UL recognized, UL94 V-0 flammability rated
  • 9, 15, and 25 shell sizes available
  • Available with board lock feature and 4-40 mounting threads
  • Selective EMI filtering available
  • Greater than 40 dB filtering up through 1 GHz without resonance
  • Bi-directional control of EMI at the I/O ports
  • Quality features for these connectors also include metal front shells and gold plated contacts.

Low Profile EMI Filter D-Sub Connector Applications

  • Cellular base stations
  • Medical electronics
  • PBX telecommunications equipment
  • Industrial process equipment
  • Graphics workstations
  • Personal computers

Low Profile EMI Filter D-Sub Connector Performance

Capacitance (pF)
Value +-30%		 3 dB Cut-off
Freq. (MHz)		 Insertion Loss (dB)
20 MHz 100 MHz 500 MHz 1 GHz 2 GHz 5 GHz
120 40 - 4 21 26 26 20
440 11 3 15 27 33 32 25
840 6 6 19 32 38 37 25
1000 3 8 21 35 41 38 25
1500 2 10 25 40 47 42 25

Low Profile EMI Filter D-Sub Connector Typical Insertion Loss

Low Profile D-Sub

Low Profile EMI Filter D-Sub Connector Mechanical & Electrical Specifications

Shell Steel, tin-plated
Insulators Glass-filled polyester, flammability UL94 V-0
Pin Contacts Copper alloy CA725, 15 microinches (0.38 µm) gold plated* over nickel
Socket Contacts Copper alloy CA725, 30 microinches (0.76 µm) gold plated* over nickel
* Heavier gold plating available upon request
Ground Plate Phosphor bronze, nickel-plated
Operating Temperature -40°C to +125°C
Capacitors Proprietary barium titanate ceramic formulations
Current Rating 5 amps
RF Current Rating 0.3 amps
Contact Resistance 10 Milliohms max.
Capacitance 120, 440, 840, 1,000, 1,500 pF +- 30%
Working Voltage 100 VDC
Dielectric Withstanding Voltage 300 VDC
Insulation Resistance 1 Gohm min.
UL Recognition Under the category of communication circuit accessories, File #E149046
*Other environmental tests such as shock, vibration, humidity, etc. are also performed. Contact us for more details.