MIL-DTL-38999I series military circular connector
1. military standard MIL-DTL-38999K
2. soldering or crimping contact
MIL-DTL-38999I series military circular connector
A. Brief Introduction
This series of connector follows the American military standard MIL-DTL-38999K (Chinese military standard GJB599A). It is designed as bayonet quick connection, small size and scoop-proof design.
B. Specification
1. Contact resistance and current rating:
contact No. | Diameter (mm) | Resistance (mΩ) | Current (A) |
22D# | Φ0.76 | ≤12.0 | 5.0 |
20# | Φ1.00 | ≤5.0 | 7.5 |
16# | Φ1.60 | ≤2.5 | 13.0 |
12# | Φ2.40 | ≤1.5 | 23.0 |
10# | Φ3.15 | ≤1.0 | 40.0 |
2. EMI shielding:
100MHz~1GHz: minimum attenuation 85dB
1GHz~10GHz: minimum attenuation 50dB
3. Withstanding voltage (V):
Service rating | M | N | I | II |
Sea level | 1300 | 1000 | 1800 | 2300 |
21000m | 800 | 600 | 1000 | 1000 |
4. Insulation resistance:
Normal ≥ 5000MΩ, damp heat ≥ 100MΩ
Electrical continuity between shells:
Class B ≤ 2.5mΩ, class F ≤ 1.0mΩ, class E ≤ 5.0mΩ
5. Shell:
Aluminium alloy, stainless steel or copper-alloy
6. Plating:
B class: Olive green cadmium plating
E class: Passivated stainless steel
C class: Anodize
F class: Electroless nickel plating
7. Insulator:
Thermo-set plastic
8. Grommet and seal:
Silicon rubber
9. Contact:
Copper alloy gold plated, crimp or PCB
10. Endurance:
500 cycles
11. Vibration:
Sinusoid vibration: frequency: 10~2000Hz, acceleration: 294m/s2
Random vibration: at frequency: 100~1000Hz, density of power chart: 1G2/Hz
12. Shock:
At 3 ms half sinusoid, peak value of acceleration: 300g
13. Operating temperature:
B class: -65oC ~ +175oC
C, E, F class: -65oC ~ +200oC
14. Salt spray:
B, E class 500h
F class 48h
15. Relative humidity: 98% at 40oC
16. Operating height: ≤ 30480m