38999 Series III
High Power Contacts
38999 High Power (up to 750A)
Designed to meet the harshest military requirements where high power
and shielding are needed.
3 aluminum shell sizes available
Size 19 (500A max); size 23 (700A max); size 25
(750A max)
Finishes: cadmium or zinc nickel
Threaded coupling
No micro disconnect under vibration
High contact endurance
Low contact resistance
Superior contact technology
equipped with a silver plated braid
Modular design for easy
installation
Removable backshell: straight, right angle or threaded
contact
Backshell termination: shrink boot
Possible to crimp various cables (Ø from 50 to185mm)
Pin contact is equipped with a plastic cap to prevent
electrical shock
Recessed engagement point to prevent electric arc
during mating/unmating
Safety
38999 Series III
High Power Contacts
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.
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
• Connector rating
200°C
-
-
Max temperature use
Recommended use
160°C
1
20°C
80°C
Si
ze
23
Si
ze
23
Siz
e2
5
Siz
e2
e
Siz
e
Siz
19
5
19
40°C
0
0
200A
400A
600A
800A
500A
Example for 500A:
Shell size 25 with contact diameter 20: max temperature 1
35°C; recommended 1
20°C
Shell size 23 with contact diameter 18: max temperature 90°C; recommended 75 °C
Shell size 19 with contact diameter 1 not recommended
4:
Wire must be compatible with current and temperature used for the connector.
1000A
Climatics
• Temperature range:
-65°C +1
75°C
Resistance to fluids
• According to MIL-DTL-38999 standard
. Gasoline: JP5 (OTAN F44)
. Mineral hydrolic fluid: MIL-H-5606
(OTAN H51
5)
. Synthetic hydraulic fluid: Skydrol 500 B4
• LD4 (SAE AS 1
241)
. Mineral lubricating: MIL-L-7870A
(OTAN 01
42)
. Synthetic lubricating: MIL-L-23699
(OTAN 01
56), MIL-L-7808
. Cleaning fluid: MIL-DTL-25769 diluted
. De-icing fluid: MIL-A-8243
. Extinguishing fluid: Chlorobrométhane
. Cooling fluid: Coolanol
Electrical
• Test voltage
>1
500 V
• Shell to shell continuity
(no backshell)
< 2.5 mΩ
• EMI
85 dB @ 1GHz (F)
• Sealing:
IP67 on mated connector (1 meter/30
min)
• Salt spray:
W: 500 hours
Z: 500 hours
F: 48 hours
2
38999 Series III
High Power Contacts
Contact layouts
1
9
H1
23
H1
25
H1
Other size: Please consult us.
Backshell type
Description
D1:
Straight backshell shrink
boot & EMI (crimp version)
G0:
Backshell low profile
(threaded termination)
R1:
Right angle backshell shrink
boot & EMI (crimp version)
W0:
Without backshell
(threaded termination)
3
38999 Series III
High Power Contacts
Ordering information
Basic Series
Style:
0:
Square flange receptacle
5:
Plug (available with backshell D1, R1, G0 & W0 Types)
7:
Jam nut receptacle
Shell size:
1 23, 25
9,
Plating:
Z:
Zinc Nickel
W:
Olive green cadmium
H1:
Single power
Contact style:
P:
Pin contact
S:
Socket contact
Orientation:
N, A, B, C, D, E
Backshell type:
D1:
Straight backshell shrink boot & EMI (crimp version)
R1:
Right angle backshell shrink boot & EMI (crimp version)
G0:
Backshell low profile (threaded termination)
W0:
Without backshell (threaded termination)
Specification for backshells D1 & R1 Types (crimp version):
Specification
A
Shell size
19
23
25
19
23
25
19
23
25
23
25
23
25
25
Admissible cable (mm)
Outer Ø max
Nominal core Ø
1
7
22
10.1
5
26.5
1
7
22
1
1.1
26.5
1
7
22
1
2
26.5
22
1
4.05
26.5
22
16.3
26.5
26.5
19
Barrel diameter
(mm
±0.05
)
10.8
8D
0
25
W
H1
P
N
R1
A
B
1
1.8
C
D
E
F
1
2.5
1
5
1
7
20.5
Specification for backshells G0 & W0 Types (only threaded termination):
Specification
C
Shell size
19, 23 & 25
Thread
M1
2
Note: Plug not available with backshell W0 Type. Other thread, please consult us.
Note: For other configuration, please consult us.
4
38999 Series III
High Power Contacts
Dimensions
Plug & receptacles
8D0
Square flange receptacle
8D5
Plug
8D7
Jam nut receptacle
F
E
ØG
A
B
C
Shell size
1
9
23
25
A
±0.1
36.5
42.9
46
B
±0.1
26.97
31.75
34.93
C
±0.1
29.36
34.93
38.1
D
±0.1
3.29
3.96
E
±0.1
4.98
6.2
F Max
41
47
52
Ø
J
ØG Max
38.5
44.9
48
H
±0.25
45.95
52.35
55.55
H
ØJ
±0.25
49.1
5
55.55
58.65
D
Backshell D1 type
(square flange receptacle)
B
A
F
With 8D0
With 8D5
(plug)
A
F
(jam nut receptacle)
G
F
With 8D7
ØC
ØD
ØC
ØD
E
H
G
K
G
M
N
P
Shell size
1
9
23
25
A Max
B Max
20.9
ØC
±0.1
25.6
32.4
35.6
ØD
±0.1
31.6
38.6
42.1
E
±0.1
2.26
2.97
F
±0.2
G
±0.2
H Max
K Max
M
±0.25
N Max
P Max
2.65
20.1
1
2
4
62.5
62
3.25
22.8
Note: All dimensions are in millimeters (mm)
5
ØD
63
ØC
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