Filtered and Customisable Connectors

Filtered and Customisable Connectors

Filtered and Customisable Connectors

Our filtered connectors are available as drop-in replacements to standard unfiltered connectors. Options available include D-SUB, circular connectors in Mil-DTL configurations = 38999, 15116, 87723, 24308, 26482, 5015. Tubular or Planar capacitors in Pi, LC, T and C circuits offer the filters along with TVS protection if required. All of our solutions can be customised to meet the requirements of the application.

Contact our technical sales team on 0330 313 3220 or email [email protected] to discuss your requirements.

APC Technology Group plc

EMI Filtered Circular Connectors

APC Hi-Rel offers a premium line of custom and specialty filtered circular connectors completely intermateable with MIL-DTL-38999 Series III. These custom, high-reliability, circular connectors have a proven reputation for superior quality and performance.


  • Available in two plate lengths .990″ and 1.240″
  • Reduces installation time and overall cost
  • Eliminates mounting hardware and prep work
  • Available in below connector styles
    • Wall Mount
    • Jam Nut
    • Straight Plug
EMI Filtered Circular Connectors Applications
  • Commercial and Military Avionics
  • Satellites
  • Telecommunications
  • Power Supplies
  • Electronic Warfare
  • Ground & Air Weapons Systems
  • Mining and Oil Exploration
APC Technology Group plc

EMI Filtered Audio Connectors

Filtered audio connectors are waterproof and polarized, five or six pin electrical plugs/receptacles and can be designed for special and selectively loaded EMI filtering. These custom filtered audio connectors meet all the requirements of MIL-STD-810F including sand and dust, salt, fog, high altitude operation, fungus resistance and immersion to 20 meters.


  • Easy Retrofit or Upgrade
  • Reduced Cost and Lead Times
  • Design Flexibility and Quality Assurance
  • Custom Designs
  • Versatility
EMI Filtered Audio Connectors Applications
  • Aviation
  • Communications and Security
  • Electronic system using the audio, connector might be exposed to ESD environments
  • Harsh conditions
APC Technology Group plc

Rapid Mate Connectors

Rapid Mate connectors offer mating via spring loaded, compliant contacts. This method provides rapid connection with low mating force & allows for some misalignment during mating. These contacts also provide positive mating force to ensure reliable connection.


  • Custom Filtering
  • 100% tested before shipment
  • Rugged and reliable
  • Resists sand, dust and water
  • Low, flexible mating force
Rapid Mate Connectors Applications
  • Military and commercial communications systems
  • Thermal and ambient light imaging cameras
  • Docking stations
  • Scanners
APC Technology Group plc

EMI Speciality Unfiltered Connectors

APC Hi-Rel offers unfiltered custom connector design & manufacturing. Parts can be designed to meet the mechanical & environmental specifications of similar QPL connectors or to the requirements of your custom system.


  • Built to Mil specifications
  • Custom shells to fit your available space
  • Built to meet various environmental requirements
  • Integral strain relief
  • Power, signal & coax line combinations
APC Technology Group plc

Mini-MIL Connectors

Mini-MIL circular connectors are small and lightweight offering space and weight savings while providing equivalent performance to standard MIL-DTL-38999 connectors. These connectors are available filtered with C, Pi or mixed capacitance, or unfiltered, and can be customized to satisfy various mechanical and electrical requirements.


  • Engagement types: Double-start ACME thread or Triple-start ACME thread
  • Termination types: PC tail, Solder cup, or Crimp removable
  • Receptacle types: Flange mount or jam nut
  • Six shell sizes are available in either pin or socket contact genders
  • Shell materials: aluminium, stainless steel
  • Pin and socket contacts are available in various combinations of size 23 to size 12
Mini-MIL Connectors Applications
  • Military, industrial and medical applications where space restrictions do not allow for larger 38999 connectors

For technical sales and expert advice on our range of high reliability electronic components contact the Hi-Rel team on: