MIL-C-26482 I Series Connectors

General Information

- Compliant with MIL-C-26482 I series standards

  Bayonet coupling quick connect mechanism

  Contact configuration: mostly solder-type

  Compact size with high contact density

  Widely used in various military and civilian equipment

Main Technical Performance

Mechanical Performance

- Shell material: Aluminum alloy

- Plating options:

  - Unmarked: Olive drab cadmium plating, conductive shell

  - Class L: Chemical nickel plating, conductive shell

  - Class A: Black anodization, non-conductive shell

  - Class B: Cadmium plating, conductive shell

  - Class S: Stainless steel passivation, conductive shell

  - Class BW: Cadmium plating, brownish-green color, conductive shell

- Insulator material: Thermosetting or thermoplastic

- Sealing material: Silicone rubber

- Contact material: Gold-plated copper alloy

- Mechanical lifespan: 500 mating cycles

- Shock resistance: Withstands acceleration up to 490m/s²

- Random vibration resistance: Frequency range of 10-2000Hz, acceleration of 147m/s²

Electrical Performance

**Working voltage and withstanding voltage (V):**

Service rating Withstanding voltage Withstanding voltage I II I II Sea level 600 1000 1500 2300 21336m 300 450 375 500

Note: Different contact arrangements have different operating levels, see top-right corner of contact arrangement label

**Contact resistance and current rating:**

Contact ID Diameter (mm) Resistance (mΩ) Current (A) 20# Ø1.00 ≤5 7.5 16# Ø1.60 ≤2.5 13 12# Ø2.40 ≤1.5 23

Insulation resistance: ≥ 5000MΩ at 25˚C, and ≥ 3MΩ at 125˚C

Environmental Performance

- Operating temperature: -55°C to +125°C

  Relative humidity: 95±4% at 40°C

  Salt spray test results:

  - Cadmium plating: 500 hours

  - Nickel plating: 48 hours/96 hours

  Sealing:

  - Wire sealing: Pressure difference of 2×105Pa, leakage rate less than 4.6×102Pa•cm³/s

  - Sintered sealing: Pressure difference of 1×105Pa, leakage rate less than 0.1Pa•cm³/s