38999 Series III
High Power Contacts
2
Description
• Threaded coupling connector with single
power contact.
• Aluminum shell.
• 3 shell sizes available:
- size 19: Up to 500 A
- size 23: Up to 700 A
- size 25: Up to 750 A
• Silver plated braid.
• Pin contact is equipped with a plastic cap to
prevent electrical shock.
• Modular design:
. Removable backshell: straight, right angle
or threaded contact.
. Backshell termination: shrink boot.
• Connector rating
Technical features
Mechanical
• Shell: Aluminum alloy
• Shell plating:
Black zinc nickel (Z)
Cadmium olive drab (W)
• Insulator: Thermoplastic
• Grommet and interfacial seal:
Silicone elastomer
• Contact body: Copper alloy
• Endurance:
500 mating/unmating operations
• Vibration:
According Def Stan 00-35
4.2 g rms vert - 6h/3 axes
Electrical
• Test voltage
> 1500 V
• Shell to shell continuity (no backshell)
< 2.5 mΩ
• EMI
85 dB @ 1GHz (F)
Resistance to fluids
• According to MIL-DTL-38999 standard
. Gasoline: JP5 (OTAN F44)
. Mineral hydrolic fluid: MIL-H-5606
(OTAN H515)
. Synthetic hydraulic fluid: Skydrol 500 B4
• LD4 (SAE AS 1241)
. Mineral lubricating: MIL-L-7870A
(OTAN 0142)
. Synthetic lubricating: MIL-L-23699
(OTAN 0156), MIL-L-7808
. Cleaning fluid: MIL-DTL-25769 diluted
. De-icing fluid: MIL-A-8243
. Extinguishing fluid: Chlorobrométhane
. Cooling fluid: Coolanol
Climatics
• Temperature range:
-65°C +175°C
• Sealing:
IP67 on mated connector (1 meter/30
min)
• Salt spray:
W: 500 hours
Z: 500 hours
F: 48 hours
Example for 500A:
Shell size 25 with contact diameter 20: max temperature 135°C; recommended 120°C
Shell size 23 with contact diameter 18: max temperature 90°C; recommended 75 °C
Shell size 19 with contact diameter 14: not recommended
Wire must be compatible with current and temperature used for the connector.
200°C
160°C
120°C
80°C
40°C
0
0 200A 400A 600A 800A 1000A
- Max temperature use
- Recommended use
500A
Size 23
Size 23
Size 19
Size 19
Size 25
Size 25