MIL-DTL-38999
Aluminum Connector for Quadrax
1 - CHARACTERISTICS
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Standard MIL-DTL-38999 aluminum shell
Compatible with Quadrax contact
Robust connector
Environmental performance as per MIL-DTL-38999 and
EN 3645 standard
Temperature range: -65° C, +200° C (+175° C for aluminum
with cadmium plating)
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Applications
Quadrax connector for network applications in severe climatic
and/or mechanical environments.
Mechanical
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Synthetic lubricating: 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
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Shell: aluminum alloy
Shell plating:
• olive green cadmium (W)
• nickel (F)
Insulator: thermoplastic, thermoset or metal
Clip # 8: copper alloy (Gold plated)
Endurance: 500 mating / unmating
operations
Shock: high impact as per MIL-S 901
Vibrations:
• sine 60 g with temperature cycling and simulated accessory
(36 hours)
• random:
44.1 grms at high temperature
49.5 grms at ambient temperature
Quadrax retention: 155 N min
Quadrax insertion force: 11 N max
Electrical
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Contact resistance (low level): initial 15 mΩ, after tests 30 mΩ
Contact resistance at rated current:
23° C
Contact
Rated
current (A)
1
Initial
200° C
After tests After tests
Environmental
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Signal
contacts
Outer body
15
30
45
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Temperature range:
• cadmium plating (W) -65° C + 175° C
• nickel plating (F) -65° C +200° C
Sealing: mated connectors meet altitude immersion
requirements of MIL-DTL-38999
Salt spray to: MIL-STD 1344 Method 1001
• 500 hours (version W)
• 48 hours (version F)
Damp heat: MIL-DTL--38999 - 10 cycles (24 hours)
12
3
4
6
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Resistance to fluids as per
MIL-DTL-38999 Standard
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Gasoline: JP5 (OTAN F44)
Mineral hydraulic fluid: MIL-H-5606 (OTAN H515)
Synthetic hydraulic fluid: skydrol 500 B4, LD4 (SAE AS 1241)
Mineral lubricating: MIL-L-7870A (OTAN 0142)
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Dielectric withstanding voltage:
Sea level = 500 Vrms between signal contacts and
signal contac/body
21000 m = 125 Vrms between signal contacts and
signal contac/body
Insulation resistance: at ambient temperature >5000 MΩ
at high temperature >1000 MΩ
Characteristics impedance = 100Ω @ 100 MHz
Attenuation
≤
0.3 dB @ 100 MHz typical per contact pair
(cat5E requirement 0.3 dB @ 100 MHz)
Crosstalk
≥
40 dB @ 100 MHz typical
(cat 5E requirement 40 dB)
Contact to shell continuity <10 mΩ (ARINC 600)
25
38999
for Quadrax
Max contact resistance (mΩ)
MIL-DTL-38999
Aluminum Connector for Quadrax
2 - INSERT ARRANGEMENTS
Insert arrangement (table 1) - Front face of male inserts
11 - 81
1 QUADRAX
17-82
2 QUADRAX
21-84
4 QUADRAX
25-88
8 QUADRAX
3 - DIMENSIONS
MIL-DTL-38999 – Receptacle type 0
PC tail
contacts
Shell
Size
11
17
21
25
MS shell
A Max.
Size
B
E
G
J
20.90
20.90
20.10
20.10
B max.
10.60
10.60
11.40
11.40
C Max.
2.50
2.50
3.20
3.20
D Thread
M15x1-6g
M25x+1-6g
M31x1-6g
M37x1-6g
Contacts
to crimp
E Max. F +/-0.3
14.00
14.00
14.80
14.80
26.20
33.30
39.70
46.00
G
20.62
26.97
31.75
38.10
H
18.26
24.61
29.36
34.93
K +/-0.2 L +/-0.2
4.93
4.93
4.93
6.15
3.25
3.25
3.25
3.91
L2 Max.
10.75
10.75
10.86
10.86
L2 Min.
9.65
9.65
9.76
9.76
Dimensions in millimeters
26
MIL-DTL-38999
Aluminum Connector for Quadrax
MIL-DTL-38999 - Receptacle type 7
PC tail
contacts
Shell
Size
11
17
21
25
MS shell
Size
B
E
G
J
A+0.1/
-0.15
19.07
30.15
36.50
42.85
B Max.
9.90
9.90
9.90
9.90
C Max.
3.20
3.20
3.20
3.20
Contacts
to crimp
D Max.
12.70
12.50
12.50
12.50
E Max.
35.20
44.80
52.70
59.00
F Max.
27.00
37.00
46.00
51.23
G +/-0.4
31.80
41.30
49.20
55.60
H thread
M15x1-6g
M25x1-6g
M31x1-6g
M37x1-6g
L1 Max.
11.63
11.45
11.45
11.45
L1 Min.
10.69
10.51
10.51
10.51
MIL-DTL-38999 - Plug type 5
38999
for Quadrax
Shell
Size
11
17
21
25
MS Shell
Size
B
E
G
J
A Max.
31.00
31.00
31.00
31.00
B Thread
M15 x 1-6g
M25 x 1-6g
M31 x 1-6g
M37 x 1-6g
C Max.
34.20
25.00
29.40
35.70
D Max.
25.00
35.70
41.70
48.00
Dimensions in millimeters
27
MIL-DTL-38999
Aluminum Connector for Quadrax
MIL-DTL-38999 - Mated connector - type 0 - type 5
MIL-DTL-38999 - Mated connector - type 7 - type 5
Shell
Size
11
17
21
25
MS Shell
Size
B
E
G
J
A Max.
37.00
37.00
36.00
36.00
B Max
52.30
52.30
51.30
51.30
C Max.
41,50
41.70
41.70
41.70
D Max.
56.80
57.00
57.00
57.00
Dimensions in millimeters
Recommended PC Drill
28
MIL-DTL-38999
Aluminum Connector for Quadrax
MIL-DTL-38999 - Sealing boot
Receptacle Type 0
Receptacle type 7
Plug Type 5
Dimensions in millimeters
4 - ORDERING INFORMATION
38999 Series III Aluminum Shell
Basic serie
Style
8D
0
L
11
W
81
P
N
201
0
- square flange receptacle
7
- jam nut receptacle
5
- plug with RFI shielding
L
- receptacle with PC tail (male and female # 8 quadrax)
Q
- connectors with quadrax crimp contacts
Shell size
11 - 17 - 21 - 25
(see table 1)
Plating
W
- olive green cadmium
F
- nickel
Insert arrangements
(see table 1)
Contact style
P
- male
S
- female
A
- male connector supplied less quadrax contact
B
- female connector supplied less quadrax contact
Orientation
N
- normal
A
- please consult us
Specification
201
- Quadrax contact grounded
225
- Quadrax contact not grounded
29
38999
for Quadrax
Type
