General Information ......................................................................................................................................................... 1
How to Order ................................................................................................................................................................. 20
Sales Office Listing
Amphenol SJT
100% scoop-proof junior tri-lock
subminiature cylindrical
®
Amphenol
®
SJT connectors combine unique design fea-
tures of the scoop-proof LJT series within standard mount-
ing dimensions of JT types. Available in a wide range of
shell sizes, finishes, insert arrangements and accessories,
the SJT features:
•
100% scoop-proof design –
basic MIL-DTL-38999 Series I*
lengths
•
Standard mounting dimensions –
MIL-DTL-38999, Series
III** dimensions
•
Compliance with European Specifications –
PAN6433-2,
LN29729, BS9522F0012, VG96912
Components
Shell components are aluminum. Standard plating on shell
components is cadmium over nickel with many optional finishes
available. Hermetic seal receptacles are available in carbon
steel or stainless steel shells. Dependable 5 key/keyway shell
polarization with bayonet lock coupling is incorporated to aid
and assure positive mating.
Insert material is a high temperature, rigid dielectric polymer
providing excellent electrical characteristics. Contrasting letter
or number designations are used on insert faces.
A fluorinated silicone interfacial seal is featured on the mating
face of pin inserts, assuring complete electrical isolation of pins
when connector halves are mated. In addition, a main joint gas-
ket is installed in the receptacles for moisture sealing between
connector halves.
Serrated and threaded shells with moisture sealing pilot for
back shells accept a wide range of accessories.
Contacts
Standard contact plating is 50 micro inches minimum gold.
Power contacts are available in sizes 10, 12, 16, 20, 22, 22M
and 22D. Size 8 and 12 twinax contacts are also available. Con-
centric twinax contact information is available in Amphenol bro-
chure SL-388. All socket contacts are probe proof. Rear
insertable/rear release crimp contacts are standard in SJT con-
nectors. High density insert patterns are available.
Coaxial contacts are available in sizes 8, 12 and 16 to acommo-
date a wide range of coaxial cables. For complete information
see Coaxial Contact catalog 12-130.
Optional Features
Special adaptations of the SJT are available for hermetic and
high temperature applications. The SJTS high temperature con-
nector is rated at 392°F. SJT hermetic receptacles are
described on pages 14 and 15.
Specials
Special types are available, such as connectors less contacts,
and circular rack and panel connectors with solderless wrap
contacts.
A complete listing of connector types, shell styles and service
classes appears on page 20, How to Order. For further informa-
tion on special application requirements, contact Sidney N.Y.
wall mounting receptacle
straight plug
jam nut receptacle
1
*MIL-DTL-38999 Series I supersedes MIL-C-38999 Series I.
**MIL-DTL-38999 Series III supersedes MIL-C-38999 Series III.
SJT
specifications, alternate rotations
CONTACT RATING
Test Current
Contact
Size
22M
22D
22
20
16
12
10 Power
Standard
3
5
5
7.5
13
23
33
Hermetic
2
3
3
5
10
17
NA
Maximum
Millivolt
Drop Crimp*
45
73
73
55
49
42
33
Maximum
Millivolt Drop
Hermetic
60
85
85
60
85
85
NA
Contact
Size
22M
22D
22
20
16
12
10 (Power)
Crimp Well Data
Well
Min.
Diameter
Well Depth
.028 ±.001
.141
.0345 ±.0010
.141
.0365 ±.0010
.141
.047 ±.001
.209
.067 ±.001
.209
.100 ±.002
.209
.137 ±.002
.355
* When using silver plated wire
SERVICE RATING**
Service
Rating
M
N
I
II
Suggested Operating Voltage
(Sea Level)
AC(RMS)
DC
400
550
300
450
600
850
900
1250
Test Voltage
(Sea Level)
1300 VRMS
1000 VRMS
1800 VRMS
2300 VRMS
Test Voltage
50,000 Ft.
550 VRMS
400 VRMS
600 VRMS
800 VRMS
Test Voltage
70,000 Ft.
350 VRMS
260 VRMS
400 VRMS
500 VRMS
Test Voltage
110,000 Ft.
200 VRMS
200 VRMS
200 VRMS
200 VRMS
** Please note that the establishment of electrical safety factors is left entirely in the designer’s hands, since he is in the best possible position to know what peak voltage,
switching surges, transients, etc., can be expected in a particular circuit.
FINISH DATA
Aluminum Shell Components Non-Hermetic
Finish
Bright Cadmium Plated Nickel Base
Anodic Coating (Alumilite)
Chromate Treated (Iridite 14-2)
Olive Drab Cadmium Plate Nickel Base
Electroless Nickel Coating
Carbon Steel Shell, Tin Plated Shell and Contacts
Stainless Steel Shell, Gold Plated Contacts
Suffix
(005)
(011)
(014)
(023)
Indicated Finish
Standard for SJT Types
SJT/SJTG
Hermetic Connectors
SJT( )Y
Consult Sidney, NY
SJT ALTERNATE ROTATIONS
A plug with a given rotation letter will mate with a receptacle with the same
rotation letter. The AB angle for a given connector is the same whether it
contains pins or sockets. Inserts are not rotated in conjunction with the
master key/keyway.
AB angles shown are viewed from the front face of the connector. A recep-
tacle is shown at right. The angles for the plug are exactly the same, except
the direction of rotation is opposite of that shown for the receptacle.
Master Key/Keyway Rotation
AB ANGLE OF ROTATION (Degrees)
Shell Size
8
10
12
14
16
18
20
22
24
Normal
95
95
95
95
95
95
95
95
95
A
81
75
74
77
77
77
80
80
B
67
63
61
65
65
65
69
69
C
123
127
129
125
125
125
121
121
D
109
115
116
113
113
113
110
110
RELATIVE POSSIBLE POSITION
OF ROTATED MASTER KEYWAY
(front face of receptacle shown)
2
SJT
insert availability and identification
Shell
Size
8-6
8-35
8-44
8-98
10-2
10-4
10-5
10-13
10-35
10-98
12-4
12-8
12-22
12-35
12-98
14-5
14-15
14-18
14-19
14-35
14-37
14-97
16-2
16-6
16-8
16-13
16-26
16-35
16-42
16-55
16-99
18-11
18-32
18-35
18-66
20-1
20-2
20-11
20-16
20-35
20-39
20-41
20-75
20-79
22-1
22-2
22-21
22-35
22-53
24-1
24-2
24-4
24-7
24-11
24-19
24-20
24-24
24-29
24-35
24-37
24-43
24-46
24-61
Crimp
X
X
X
X
Hermetics*
Class Y
Service
Rating
M
M
M
I
I
I
I
M
M
I
I
I
M
M
I
II
I
I
I
M
M
I
M
I
II
I
I
M
M
M
I
II
I
M
M
M
M
I
II
M
I
I
M
II
M
M
II
M
I
M
M
I
M
N
I
N
I
I
M
I
I
I
I
Total
Contacts
6
6
4
3
2
4
5
13
13
6
4
8
22
22
10
5
15
18
19
37
37
12
39
6
8
13
26
55
42
55
23
11
32
66
66
79
65
11
16
79
39
41
4
19
100
85
21
100
53
128
100
56
99
11
19
30
24
29
128
37
43
46
61
22D
22M
6
6
4
3
2
4
5
13
13
6
4
8
22
22
10
14
18
19
37
37
8
38
6
8
13
26
55
42
55
21
32
66
66
79
65
11
16
79
37
41
17
100
85
21
100
53
128
100
48
97
2
19
10
13***
12
29
37
20
4
4
12
3
9
8
2**
2
4††
2†
2
11
4
1**
5
1
22
20
Contact Size
16
12
12
(Coax)
10
(Power)
8
(Coax)
8†††
(Twinax)
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
128
23
40
61
2††
X
not tooled for 02-RE
* Pin inserts only (contact Sidney, NY for socket availability).
** twinax contacts for MIL-C-17/176-00002 cable.
*** Two size 16 contacts dedicated to fiber optics. Consult Sidney, NY
or Catalog Section 12-352 for fiber optic information.
3
† must be ordered separately
†† Coax Contacts for RG180 or RG195 cable.
††† Size 8 Coax and Twinax are interchangeable.
For availability of size 12 twinax contacts, consult
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