Amphenol SOCAPEX │ MIL-DTL-38999 SERIES
CONTACTS ARRANGEMENTS
MIL-DTL-38999 HD arrangements and EN3645 Quadrax and/or grounded arrangements are given for information only. Not qualified. Amphenol designation only .
As stated in MIL-DTL-38999 standard, insert arrangements using multi-axial contacts (Coax. Twinax. Quadrax....) should not be used in firewall applications .
HD , Quadrax & differential Twinax arrangements are not rated over 175°C.
Differential Twinax or Quadrax
Power contacts
Coax or Twinax
HD
G
Q
Y
L
Ground plane version available
Quadrax available
Hermetic available
Lanyard release plug available
23 22D 20 16 12 8 4 00 0000
16, 12, 8
High density
Front face of pin insert shown, master keyway illustrated.
L
Q
Y L
S
S T
A
A
A
V
R
A
S T
B
R
U f
B
B
e j
W
T
P
R
U
C
d
V
U
U
C
B
C
d
d
C
P
V
e
P
c
N
e
W
c
V
D
W
D E
N
D
g
c
h
g
b
N
M
X
b
g
f
X
Z
E
W
a
E
M
M
h
b
L
Y
a
Y
N
Z Y X
F
F
K E
L
Z
a
F
S
L
K
G K J H
G
K
J H G
R
M
J H
19-28 18-28 19-28 F28
19-30 18-30
19-31
19-32 18-32 F32 FN32
Series III/TV-CTV
/ / / /
Series II/JT
/ / /
19-32 (19-32)
Series I/LJT (HE308) MIL-DTL-38999 Series III
/
EN3645
26 20
2
29 20
1
12
1
2
32 20
Total contacts Contact size
18 19
16
16
22D 12
8 Coax
Y L
HD
25
34
43
10 17
51
4
58
64
1
2
65
3
66
Series III/TV-CTV MIL-DTL-38999, Series I LJT, II JT, III TV, HD Insert Arrangements 19-35 18-35 19-88 Series II/JT 9 16 24 33 42 50 57 63
/ /
19-35 (19-35)
Series I/LJT (HE308) MIL-DTL-38999 Series III
F35 FN35
F23
/
Front face of pin inserts illustrated
EN3645
66
88 23
Total contacts Contact size
22D
Y L
Q
G
Q
Y L
1
A
19
A
J
2
A
M
L
18
R
A
B
R
B
J
L
B
A
A
3
L
A
C S
20
C
25
P
P
K
C
16 17
K
H
R N P a
H
M
B
K
M
B
4
S
X
W
B
S
V
B
T
D
D
L M N
S
N
5
M N
Y
K
Y Z
b
K
J
T
J
N
G
C
W
C
G
C
15
C
L
E
6
E
c
d
Z
R
P
b
27 26
24
21
U
L
H
D
S
22
U
14
a
R
U
V
23
P
F
D
F
L
X
T
F
7
13
D
H
D
D
V
J
G
F
E
W
12
F
8
E
K
E
K
G
G
E
H
G
Shell Size & Insert Arrg. for: Series II JT
J H
E
F
G F
11 10
J H
9
21-11
21-16 20-16 G16 GN16
21-AJ (21-20)
21-29
Series III/TV-CTV
20-11 21-11 21-11
20-16 21-16 21-16
/
/ / /
/ /
Series II/JT
21-11 G11 GN11
21-16 (21-16)
Series I LJT Series III TV
21-25
21-27
Series I/LJT (HE308) MIL-DTL-38999 Series III
G29 21-29
GN20
/
EN3645
I
II
I
I
I
Total contacts Contact size Number of Contacts Service Rating
11 12
16 16
18 20
2
19 4 20 16 19
4
11 12
16 16
25 20
8 Twinax 27
4
4
12
20 21
20
20 16 12
Contact Size
Y L
Y L
Y L
W
1
A B
A
V W
A
V
B
U
X
31
j
C
X k
U
j
C
51
Y
T
Y
i
k
D
T
i
s
D
Z
B
Z
D
S
r
m
E
h
m
h
a
S
t
E
a
r
79
21
g
A F
R
F
n
1
q
n
g
A
T
R
b
W
W
b
C
S
p
B
A
q
G
V
71
B
f
P
V
B
61
j c
G
U
R
C
C
c
p
P
f
U
N
X
31
e
C
H
X
T
d
51
d
Y
j
e
D
H
M
Y
41
N
P
D
T
D
J
U V
k
i 11
i
S
L
Z
D J M L K
k
s
Z
K
A
E
m n
S
h
a
E
t
79
r
m
21
h
a
r
R
F
g
21-35 20-35 G35 GN35
N 21-39 P 20-39 R 21-39 g G39
C 21-41 20-41 21-41 G41 GN41
J 21-48
b
q
n
E
Series III/TV-CTV
N
B
71
p
b
q
P
c
61
/
F
f
G
Series II/JT
c
F
d
N
M
p
f
G
e
M 21-35 (21-35)
L 21-48 (21-48)
G
e d
Series I/LJT (HE308)
H
41
11
H
Shell Size & Insert Arrg. for: Series II JT EN3645 Series I LJT Series III TV Service Rating
K
H
J
/ /
J
M
MIL-DTL-38999 Series III
L K
L K
/
79
37 20
2
41 20
4
Total contacts Contact size
20-35 21-35 21-35
20-39 21-39 21-39
20-41 21-41 21-41
22D
16
8 Power only P
21-75 21-75
21-79 21-79
M
1
I
N
II
79 P Male version to be used with 900198 power contacts only Delivered with Twinax contacts for simple braid cable (M17/1760002. AECMA Pr EN3375-003. Raychem 10612. EPD44690. EPD44691) / Not applicable 37 2 41 20 4 22D 20 16 (See Note)
17 (See Note)
Number of Contacts
22D
Contact Size
Amphenol SOCAPEX
Due to technical modifications, all information provided is subject to change without prior notice Designed by Amphenol Socapex
29
46
25
67
23
A
20
1
5
56
35
39
58
16
77
48
12
67
86
8
6
13
A
14
22
94
K
B
5
1
75
23
32
2
1
82
95
B
E
33
43
3
96
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