Micro D-sub MIL-DTL- 83513

Micro D-Sub Connectors MIL-DTL-83513

Designed for demanding military applications, these Sunkye Micro d-sub connectors to MIL-DTL-83513 have precision, gold plated, twist pin contacts on a nominal 1.27mm (0.050″) pitch. Filtered versions are available.



Standard d-sub connectors to MIL-DTL-24308 are built using an 0.100″ pitch, but increasingly this footprint does not fulfill today’s military or advanced electronics system specifications for weight and space.

Accordingly, In2Connect offer a wide range of twist pin, Micro ‘D’ subminiature connectors with an 0.050″ (1.27 mm) contact pitch: plugs, sockets, hoods and accessories with 9, 15, 21, 25, 31, 37, 51, 66, 74 and up to 130 ways. Ideal for mission critical applications like aerospace, aviation, electronic, and military communications.

Because of their 10 strand BeCu, male “Twist pin” contacts these connectors have a low electrical transfer resistance (due to the ‘birdcage’ shape providing multiple points of contact with the mating socket) and can therefore achieve high mating cycles and resistance to shock and vibration. Male and female d-sub connectors fit more precisely together and give a more reliable, gas-tight connection with more tolerance to vibration. Sunkye Micro Dsubs are available with insulated and uninsulated wire, PCB, solder cup and flex terminations.  Sunkye International originates in the early 1950’s and was one of the Twist pin/ Micro D/ Nano D connector companies to license  this technology. Sunkye focuses on fully automatic assembly and has 14 production lines capable of turning out  369,000 of these connectors per Month.

Micro D-subs offer 3 to 4 times the contact density of a Standard D-sub layout whilst, by virtue of the shell design, maintaining the D sub connectors automatic polarisation.

Micro D-subs are qualified and approved to MIL-DTL-83513 which is the United States Department of Defense Logistics Agency’s detailed specification controlling dimensions, materials, performance and test regimes. MIL-DTL-83513 covers Micro-D Sub connectors having plastic or metal shells. Sunkye R04 Series Microminiature Rectangular Connectors have plastic bodies. Sunkye R04J Series Microminiature Rectangular Connectors have Aluminium or Stainless Steel bodies.

Military – R04J,R04J-J,R04J-S,R04J-S1,R04F,R04FJ,R04FM,F04J-A,R04J-C,R04J-D,R04J-F,R04J-S
Aerospace – R04S,R04S-J,R04S-F,R04S-S,R04S-FA,R04S-FB,R04S-SA,R04S-SB
PPS – R04,R04-J,R04-S,R04-S1,R04-F,R04-FJ,R04-FM

Sunkye Filtered Micro-D connectors are low-pass filters, transmitting DC and low frequency signals while attenuating unwanted high frequency noise. The filter substrates are constructed with a ceramic planar capacitor array. Each connector series is offered with standard low-pass Pi or C filter arrays, or with customized filters to meet specific frequency and capacitance requirements. Thermally conductive epoxy protects the filter package from mechanical and heat stress and also provides a waterproof seal. All filtered receptacles are intermateable with standard plugs and connector savers, and each respective family of connectors is supplied with a range of shell styles in both environmental and hermetic configurations. Sunkye Filter Micro-D’s meet the demanding performance requirements of MIL-DTL-83513, except for a reduction in the dielectric withstanding voltage rating to 250 volts DC (higher voltages available on request). The Twist Pin contact system assures superior performance in the most demanding applications.

C Filter
Single capacitor with low self-inductance. This configuration is generally used to attenuate high frequency signals. The simple design allows high-frequency EMI to discharge to ground via the surrounding electromagnetic field. C filters occupy the least amount of space and offer lower cost compared to other filter types.

Pi Filter
Dual capacitors with a ferrite inductor positioned between them. The Pi filter provides excellent high-frequency performance due to its sharper roll off.

Key Features

Key Features

  • Sunkye twist-pin Micro miniature d-subs meet the most demanding requirements.
  • Twist pin contacts. Offering up to 100 contacts.
  • Solder bucket, Straight PC, 90 degree PC and crimp termination styles – to suit all your Micro-d type connector applications.
  • Robust and shielded – for enhanced electrical continuity and effective EMI/RFI shielding.
  • Wide range of accessories for greater user flexibility
  • C or Pi Filtered versions available



  • Shell – Plastic or nickel plated Aluminium & Stainless Steel
  • Insulator – Polyphenylene Sulfide (PPS) or Polyetherimide (PMI)
  • Contact – Gold plated Twist Pin type


  • Current
    Individual contact (in isolation) 3A @ 20ºC Tamb
  • Proof voltage 800 Vdc or ac peak
  • Contact Resistance 10m max
  • Insulation Resistance 5000M min


  • Mechanical Operations – 500
  • Vibration ~ 10Hz~2000Hz
  • Power spectral density 0.4G²/Hz, RMS value of total acceleration 23.1G
  • Shock ~ 980m/s² 11ms


  • Operating Temperature – -55C to +125C

Contact Arrangement

  • 9,15, 21, 25, 31, 37, 51, 66, 74 and 100

Mounting Options

  • Standard fixing holes
  • Locking screw mounted
  • 90 degree brackets with locking screw fitted
  • Screwlock assembly fitted
  • Cable clamp b/shell
  • Rubber interfacial seal for panel mount


Connectors can be supplied factory attached to BS 3G 210, PTFE wires in lengths to meet customer requirements. Contacts accept cable 22, 24, 26, 28 and 30 AWG

For over 60 years, Sunkye has been a specialist in the design, manufacture and supply of high performance connectors to the world commercial and military aerospace manufacturers: various naval, land and air systems and other applications and is now ISO 9001, UL, VDE and CE certified.

In2Connect stock product from Sunkye. A choice of many termination styles including crimp are available making this range one of the most versatile,