Circular Connectors (Military Connector)
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MIL-C-26482 I Series
Applications of Circular Connectors
Our MIL-C-26482 I series connectors are ideal for circuit signal connections.
Environments
Our MIL-C-26482 I series connectors are suitable for a wide range of military and civilian equipment, ensuring reliable electrical connections in various demanding environments featuring high humidity, salt spray, fungi, heavy rain, and dust.
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
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