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GJB599A / MIL-DTL-38999K
GJB599 Series I
GJB599 Series I
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GJB599A / MIL-DTL-38999K
GJB599 Series I Circular Connector - Receptacle
The GJB599 Series I circular receptacle connector (equivalent to MIL-DTL-38999 Series I) is the fixed-mount half of the bayonet-coupled Series I system, available in wall-mounting square flange (front or rear mounting), box-mounting square flange and jam-nut mounting styles. Nine shell sizes and 70 contact arrangements cover signal densities from a few contacts up to high pin counts, with crimp, solder and PCB contact terminations. Sealed interfaces and grommets deliver reliable performance under vibration, salt spray and wide temperature extremes for aviation, aerospace and military equipment.
Key Specifications
Mounting Styles
Wall / Box Square Flange, Jam-Nut
Shell Sizes
09, 11, 13, 15, 17, 19, 21, 23, 25 (9 Shells)
Mechanical Endurance
500 Mating Cycles
Product Description & Technical Specifications
TECHNICAL DATASHEET1. Product Overview & Features
The GJB599 Series I circular receptacle connector (equivalent to MIL-DTL-38999 Series I) is the fixed-mount half of the bayonet-coupled Series I system, available in wall-mounting square flange (front or rear mounting), box-mounting square flange and jam-nut mounting styles. Nine shell sizes and 70 contact arrangements cover signal densities from a few contacts up to high pin counts, with crimp, solder and PCB contact terminations. Sealed interfaces and grommets deliver reliable performance under vibration, salt spray and wide temperature extremes for aviation, aerospace and military equipment.
- Wall-mount square flange (front / rear mounting), box-mount square flange and jam-nut mounting styles.
- Bayonet coupling with a 5-key polarising system offering five key positions against mismating.
- 9 shell sizes and 70 contact arrangements, with crimp, solder and PCB contact terminations.
- Sealed mating interface and rear grommet resist moisture, salt spray, mould, rain and dust.
- Shell classes B (cadmium), E (passivated stainless) and F (electroless nickel) for different environments.
- Interchangeable and intermateable with MIL-DTL-38999 Series I equivalents.
2. Technical Specifications
| Executive Standard | GJB599A (MIL-DTL-38999K), Series I |
|---|---|
| Coupling Mechanism | Bayonet, quick connect / disconnect |
| Shell Material | Aluminium alloy, stainless steel |
| Shell Finish | B — cadmium, olive drab / E — stainless steel passivated / F — electroless nickel |
| Insulator | Thermosetting plastic |
| Grommet & Seals | Silicone rubber |
| Contact Material | Copper alloy, gold plated; crimp, solder and PCB types |
| Contact Sizes | 22D (φ0.76 mm), 20 (φ1.00), 16 (φ1.60), 12 (φ2.40), 10 (φ3.15), 8 (φ3.60) |
| Rated Current | 5 A / 7.5 A / 13 A / 23 A / 40 A / 46 A by contact size |
| Contact Resistance | ≤ 12 / ≤ 5 / ≤ 2.5 / ≤ 1.5 / ≤ 1.0 / ≤ 0.57 mΩ by contact size |
| Insulation Resistance | ≥ 5000 MΩ normal; ≥ 100 MΩ after damp heat |
| Dielectric Withstanding Voltage | Sea level: M 1300 V, N 1000 V, I 1800 V, II 2300 V; at 21,000 m: 800 / 600 / 1000 / 1000 V |
| Shell-to-Shell Continuity | Class B ≤ 2.5 mΩ / Class F ≤ 1.0 mΩ / Class E ≤ 5 mΩ |
| EMI/RFI Shielding | ≥ 85 dB (100 MHz–1 GHz); ≥ 50 dB (1–10 GHz) |
| Vibration | Sine 10–2000 Hz at 294 m/s²; random 100–1000 Hz, 1 g²/Hz |
| Shock | 3 ms half-sine, 300 g peak acceleration |
| Operating Temperature | Class B −65 °C to +175 °C; Class E / F −65 °C to +200 °C |
| Salt Spray | Class B 500 h / Class E 1000 h / Class F 48 h (GJB1217 method 1001) |
| Relative Humidity | Up to 98% at +40 °C |
| Operating Altitude | ≤ 30,480 m |
| Mechanical Endurance | 500 mating cycles |
Related Products
GJB599A / MIL-DTL-38999K
