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Souriau > Mil-DTL-38999 > Series 3 Composites: 8D
Mil-C-38999 Series 3 Composites: 8D
Description
High density connectors for industrial, military and aeronautical purposes wherever weight savings and severe climatic or mechanical environment are targeted.
Specifications
- High density connector from 1 to 128 contacts
- Sizes 22D, 20, 16, 12, #16 coax and #8 triax
- A quick screw coupling with anti-decoupling mechanism
- 100% scoop proof
- An EMI/RFI reinforced shielding with grounding fingers
- Resistance to salt spray > 2000 hours
- Endurance > 1500 cycles (mating/unmating)
Standards
En 3645 (under qualification)
MIL-C 38999 Series III - Issue J
Mechanical Characteristics
- Weight : typically 25 % lighter than aluminium version
- Shell : carbon reinforced thermoplastic
- Plating : olive green cadmium (J) / nickel (M)
- Insulator : thermoplastic or thermoset
- Grommet and interfacial seal : silicone elastomer
- Contact : copper alloy
- Plating : gold over nickel
- Endurance : 1500 mating/unmating operations
- Shock : 300 g - 3 ms EN 2591 - D2 method A
- Vibration :
- sine : 10 to 2000 Hz, 3 x 12 hrs (60 g, 140 - 2000 Hz) with temperature cycling.
- random : 50 to 2000 Hz, 2 x 8 hrs (1g2/Hz, 100 - 2000 Hz) at T Max. 25 to 2000 Hz, 2 x 8 hrs (5g2/Hz, 100 - 300 Hz) at T amb. test with accessories in accordance with EN2591-D3
- Contact retention :
- size 22 : 45 N
- size 20 : 67 N
- size 16 : 111 N
- size 12 : 111 N
- size 8 : 111 N
Electrical Characteristics
Test voltage (Vrms)
| Service |
Sea Level |
At 21000 m |
| M |
1300 |
800 |
| N |
1000 |
600 |
| I |
1800 |
1000 |
| II |
2300 |
1000 |
- Contact resistance :
resistance of wire included in measurement :
- size 22D : 14.6 mΩ
- size 20 : 7.3 mΩ
- size 16 : 3.8 mΩ
- size 12 : 1.7 mΩ
- size 8 : 3 mΩ
- Contact rating :
- size 22D : 5 A
- size 20 : 7.5 A
- size 16 : 13 A
- size 12 : 23 A
- size 8: 45A
- Insulation resistance : ≥ 5000 MO (at 500 Vdc)
- Shell continuity :
- olive green plating : 3 mΩ
- nickel plating : 3 mΩ
- Shielding : 90 db at 100 GHz; 85 db at 1 GHz
- Triaxial contact : # 8
- bandwidth : 0 - 20 MHz
- voltage rating : 500 Vac Max. /125 Vac at 21 000 m
- voltage drop: inner and middle contact ≤ 55 mV, under 1A outer contact ≤ 75 mV under 12 A
Climatic Characteristics
- Salt spray : 2000 hours
- Temperature range :
- cadmium (J) : -65°C +175°C
- nickel (M) : -65°C +200°C
- without plating (x) : -65°C +175°C
- Fire resistance :
- Fire exposure during 30 sec. EN2591-C17 method A
- Damp heat :
- 10 cycles in accordance with EN 2591 - C21
- altitude-low temperature : 5 cycles (5x44 Hrs ; -65°C min ; -5,5KPa min) EN2591 - C3
- Sealing : 3 cycles (3x1 Hrs) Altitude immersion 1,1 KPa EN2591 - C14
- Moisture : exposure during 28 days EN2591 - C6
Resistance to fluids
To MIL-C 38999 :
- Gasoline : JP5 (OTAN F44)
- Mineral hydraulic fluid : MIL-H 5606 (OTAN H515)
- Synthetic Hydraulic Fluid : skydrol 500 B4, LD4 (SAE AS 1241)
Mineral lubrificating : MIL-L 7870A (OTAN 0142)
- Synthetic lubrificating : MIL-L 23699 (OTAN 0156), MIL-L 7808
- Cleaning fluid : MIL-C 25769 diluted
- De-icing fluid : MIL-A 8243
- Extinguishing fluid : Chlorobromethane
- Cooling fluid : Coolanol
- To NFC 93422
F46, F54, 0/180, H515, H542, XH45ing : MIL-L 7870A (OTAN 0142)
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