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Filtered Circular Connectors

Specialty Connectors

API Technologies 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.

Components including capacitors and shells are manufactured by API, providing customers
high quality parts at very competitive prices, with the industry’s shortest lead times.

  • Available in two plate lengths, .990" and 1.240"
  • Available in both C and Pi filter circuits
  • Eliminates mounting hardware and prepwork
  • Wall mount, jam nut and straight plug options
  • Fully qualified test laboratory and is willing to provide additional acceptance testing upon customers’ request, at minimal additional costs
  • Manufactured in both of our US and UK facilities
  • Commercial and defense aerospace
  • Satellites
  • Telecommunications and security
  • Power supplies
  • Electronic warfare
  • Ground and air weapon systems
  • Mining and oil exploration
Operating Temperature -55°C to 125°C
Capacitance See capacitance table below
Capacitance Tolerance ±25%, +100%
Voltage Rating 200VDC
Dielectric Withstanding Voltage 500VDC
Dissipation Factor <3.5%
Insulation Resistance 1000MΩ, µF or 10KMΩ

Note: The electrical properties listed are typical and can be exceeded based on customer requirements and mechanical figuration. Since many variables affect the design, contact an engineer directly for a detailed assessment of your connector needs.

Capacitance Code Capacitance Value Circuit Availability
251 250pF C
501 500pF C, Pi
102 1,000pF Pi
122 1,250pF C
252 2,500pF C, Pi
502 5,000pF C, Pi
103 10,000pF C, Pi
203 20,000pF Pi
253 25,000pF C
503 50,000pF Pi

Note: Custom capacitance values and tolerances avaialble.