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GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connector
Bayonet coupling quickly. Scoop-proof, EMI/RFI shielding, High contact density. The pressurize insert and join surface. Small size, light weight. Rump accessories includes shield contact cable pressurize line nip,90°line nip,45° line nip,straight line nip etc.
Brief introductionGJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connectortop ↑
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connector

  —High density miniature circular electrical connector. including one form one contact to 128 contacts.
  —Contact codes including #22D?#20?#16?#12?#16.coaxial and #8 tri-coaxial
  —Bayonet coupling, locking and releasing quickly
  —Scoop – proof
  —Main key/keyway polarization
  —EMI/RFI shielding and shell to shell conductivity
  —Shock-proof and vibration-proof
  —Fluid immersion
   Apply widely in aviation, space and military systems
   Meet the US military standard:GIB599 series ?
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Brief introduction

GJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connector
specificationGJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connectortop ↑
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connector
Mechanical characteristic
— Shell:Aluminium alloy
Finishing: Olive-drab cadmium plate(B);Electroless nickel coating(F);
— Insert interface:Plasteic;
— Gascket:Silicon rubber elastomer;
— Contact: Copper alloy;
Finishing: Nick plate followed gold plate;
— Life time:500 cycles.
— Shock:2940m/s3ms
— Vibration: Sine 294m/s2  10~2000Hz
Random 96(m/s2 )2/ Hz  408 m/s2,100~1000Hz
Random  480( m/s2 )2/ Hz,  100~300 Hz
— Contact retention force (min)
 #22D:44N   #16:111N    #8 coaxial:111N
 #20:67N   #12:111N     #8 tri-coaxial:111N
Electrical characteristics
— Dielectric withxtanding voltage(Vrms)(Mated)
Ratings
Sea level
21000m
M
N
?
?
1300
1000
1800
2300
800
600
1000
1000
 
  — Contact resistance:
#22D:14.6mO  #20:7.3mO
#16:3.8mO    #12:1.8mO
— Contact resistance:>=5000MO(500V DC)
—Contact current ratings:
#22D:5A   #20:7.5A   #16:13A    #12:23A
—Shell-to-shell conductivity:
Olive-drab cadmium plate:2.5 mV,nickel coating: 1 mV
— Shielding:
100MHz?90dB ,1GHz?85dB
10 GHz?65dB
— Coaxial contact:
Operating frequency:0~1GHz  Character resistance:50O
Voltage standing wave rate<=1.3
— #8 tri-coaxial contacts: Frequency With 0 ~ 20 MHz
   Voltage Ratings:500V AC max
   125V AC at 21000m
   Voltage dropped: 
  Inner and middle contact:<=75mV at 12 A
   External contact:<=75mV at 12A
Environmental characteristics
—Temperature range:
Cadmium(B):-65?~+175?
Nickel(F):-65?~+200?
—Salt spray:500h(B) 48h(F)
—Temperature shock: For 24 hours,10 cycles
— Fluid immersion: Hydraulic oil, Lubricating oil, Freezing liquid and other solvents
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connector
Product Outline DimensionsGJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connectortop ↑
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connector
  ?JY27467 Plug
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Product Outline Dimensions
 Shell code
D1 max
ThreadD2
09
21.80
0.437-28 UNEF-2A
11
25.00
0.562-24 UNEF-2A
13
29.00
0.687-24 UNEF-2A
15
32.50
0.812-20 UNEF-2A
17
35.70
0.937-20 UNEF-2A
19
38.50
1.062-18 UNEF-2A
21
41.70
1.187-18 UNEF-2A
23
44.85
1.312-18 UNEF-2A
25
48.00
1.437-18 UNEF-2A
  ?JY27468  Receptacle
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Product Outline Dimensions
Shell code
D1
Thread D2
D3
L
A
B
d
P
09
14.53
0.437-28 UNEF-2A
30.54
3.00
22.35
27.35
17.70
16.99
11
17.78
0.562-24 UNEF-2A
35.23
3.00
25.55
32.10
20.88
19.53
13
21.59
0.687-24 UNEF-2A
38.40
3.00
30.30
35.31
25.58
24.26
15
24.77
0.812-20 UNEF-2A
41.64
3.00
33.45
38.49
28.80
27.53
17
27.94
0.937-20 UNEF-2A
44.75
3.00
36.65
41.63
31.98
30.68
19
30.66
1.062-18 UNEF-2A
49.53
3.79
39.80
46.37
35.15
33.86
21
33.83
1.187-18 UNEF-2A
52.67
3.79
43.00
49.58
38.28
37.06
23
37.00
1.312-18 UNEF-2A
55.94
3.79
46.15
52.76
41.50
40.01
25
40.18
1.437-18 UNEF-2A
59.02
3.79
50.95
55.93
44.68
43.41
  ?JY27466 Receptacle
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Product Outline Dimensions
  ?JY27656 Receptacle
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Product Outline Dimensions
Shell code
D1
Thread D2
L1
L2
L3
B
E
d1
d2
J
09
14.53
0.437-28 UNEF-2A
16.05
20.83
2.48
24.25
18.26
15.70
16.66
3.25
11
17.78
0.562-24 UNEF-2A
16.05
20.83
2.48
26.60
20.62
18.70
20.22
3.25
13
21.59
0.687-24 UNEF-2A
16.05
20.83
2.48
29.00
23.01
21.80
23.42
3.25
15
24.77
0.812-20 UNEF-2A
16.05
20.83
2.48
31.35
24.61
25.00
26.59
3.25
17
27.94
0.937-20 UNEF-2A
16.05
20.83
2.48
33.75
26.97
28.30
30.96
3.25
19
30.66
1.062-18 UNEF-2A
16.05
20.83
2.48
36.90
29.36
31.00
32.94
3.25
21
33.83
1.187-18 UNEF-2A
15.29
20.08
3.24
40.10
31.75
34.20
36.12
3.25
23
37.00
1.312-18 UNEF-2A
15.29
20.08
3.24
43.25
34.93
37.30
39.29
3.73
25
40.18
1.437-18 UNEF-2A
15.29
20.08
3.24
46.50
38.10
40.50
42.47
3.73
Dimension of straight PCB terminal receptacle
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Product Outline Dimensions
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Product Outline Dimensions
Mated and unmated dimension
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Product Outline Dimensions
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connector
AccessoriesGJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connectortop ↑
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connector
Order mark of protecting cover(Order separately)
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Accessories
Receptacle protecting cover
Plug protecting cover
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors AccessoriesGJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Accessories

 

GJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connector
Main key/KeywayGJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connectortop ↑
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connector
Polarization is provided be main key/keyway, with other secondary keys/keyways locating.
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Main key/Keyway

GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Main key/Keyway

GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Main key/Keyway

GJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connector
IdentificationGJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connectortop ↑
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connector
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Identification
Identification according to MIL-DTL-38999K
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Identification
Difference table between GJB599 Series?and MIL-DTL-38999K
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Identification
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connector
Contact ArrangementsGJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connectortop ↑
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connector

  Contact arrangement (Plug interface view) 
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Contact Arrangements

GJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connector
Terminal AccessoriesGJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connectortop ↑
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connector

Meet the US military standard:MIL-DTL-38999k
Order separately for accessories. Besides; we can supply the other special accessories according to the customer’s requirement.
J1784/17-24W10A
J1784/19-9W02A
J1784/47-10W
J1784/49-10W
J1784/57S10W
J1784/62-10WD
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Terminal Accessories
Table 1

Code
Shell code
Cable clipper code
min
max
08
09
01
02
10
11
01
03
12
13
02
04
14
15
02
05
16
17
02
06
18
19
03
07
20
21
03
08
22
23
03
09
24
25
04
10

GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Terminal Accessories
Table 2
Cable clipper code
Mated cable diameter
Y
X
min
max
max
max
01
1.57
3.18
19.84
31.75
02
3.18
6.35
24.61
03
6.35
9.53
26.97
04
9.53
12.70 
29.36
05
12.70
15.88
31.75
33.32
06
15.88
19.05
34.93
34.93
07
19.05
22.23
38.10
38.10
08
22.23
25.40
41.28
41.28
09
25.40
28.58
44.45
10
28.58
31.75
47.63
Table 3
Code
Length code
L
8~24
Blank(normal)
38.1
8~24
A
63.5
14~24
B
88.9
20~24
C
114.3
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Terminal Accessories
Table 1
Shell code
Cable slipper code
A
max
min
max
09
01
02
19.1
11
01
03
21.6
13
02
04
25.4
15
02
05
27.9
17
02
06
31.8
19
03
07
35.6
21
03
08
38.1
23
03
09
41.9
25
04
10
44.5
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Terminal Accessories
Table 2
Cable clipper code
Mated cable diameter
Y
max
min
max
01
1.57
3.18
20.3
02
3.18
6.35
25.4
03
6.35
9.53
27.9
04
7.92
12.70
30.5
05
11.10
15.88
31.8
06
14.27
19.05
35.6
07
17.45
22.23
38.1
08
20.62
25.40
41.9
09
23.80
28.58
44.5
10
26.97
31.75
48.3
Table 3
Shell code
Length code
L
9~25
Blank (normal)
38.1
9~25
A
63.5
19~25
B
88.9
21~25
C
114.3
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Terminal Accessories
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Terminal Accessories
Code
Shell code
A
max
B
max
C
D max
E
max
F
max
G
max
H
min
max
Self-locking
No-self-locking
08
09
29.46
35.05
5.94
2.49
21.84
19.05
35.05
25.40
21.59
12.70
10
11
29.46
35.05
5.94
3.89
24.89
21.59
38.86
27.94
22.86
12.70
12
13
31.50
37.08
8.33
4.83
29.46
25.40
40.64
27.94
27.94
15.88
14
15
35.81
41.40
11.61
6.60
32.51
27.94
45.72
31.75
29.21
19.05
16
17
40.13
45.72
15.60
7.19
35.81
31.75
49.02
33.02
33.02
19.05
18
19
40.64
46.23
16.10
8.26
38.61
35.56
52.07
34.29
38.10
19.05
20
21
42.67
48.26
17.73
8.71
41.66
38.10
59.69
40.64
40.64
22.23
22
23
46.23
51.82
20.90
9.68
44.96
41.91
65.53
44.45
43.18
25.40
24
25
49.02
54.81
21.67
10.62
48.01
44.45
69.34
46.99
45.72
28.58
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Terminal Accessories
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Terminal Accessories
Code
Shell code
A
max
C
max
D
max
Mated cable diameter E
F
max
G
max
min
max
08
09
23.11
27.94
21.59
2.49
5.94
21.82
12.70
10
11
23.11
27.94
22.86
3.89
5.94
24.99
12.70
12
13
25.65
30.48
27.94
4.83
8.33
29.36
15.88
14
15
26.92
31.75
29.21
6.60
11.61
32.54
19.05
16
17
29.46
34.29
33.02
7.19
15.60
35.71
19.05
18
19
35.81
40.64
38.10
8.26
16.10
38.51
19.05
20
21
38.35
43.18
40.46
8.71
17.73
41.68
22.23
22
23
42.16
46.99
43.18
9.68
20.90
44.86
25.40
24
25
44.70
49.53
45.72
10.26
21.67
48.03
28.58
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Terminal Accessories
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Terminal Accessories
Code
Shell code
max
08
09
6.71
10
11
9.96
12
13
12.85
14
15
16.03
16
17
19.20
18
19
21.46
20
21
24.46
22
23
27.81
24
25
30.99
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Terminal Accessories
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Terminal Accessories
Code
Shell code
A
max
E
max
F
min
08
09
19.05
13.54
6.35
10
11
21.59
15.37
9.53
12
13
25.40
19.66
12.70
14
15
27.94
21.29
15.88
16
17
31.75
24.46
19.05
18
19
35.56
26.47
20.63
20
21
38.10
30.91
23.80
22
23
41.91
34.42
26.98
24
25
44.45
36.65
30.18
Finishing

Finishing marking
Finishing
Salt spray
A
Black anticathode
48h
B
Blank nickel plate
48h
N
Nickel plate
48h
W
Nickel plate followed by olive- drab  cadmium plate
500h
S
Stainless steel passivation
1000h

Note: Accessories for space class products must choose electroless nickel coating

GJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connector
Structure Drawing Of SeriesⅠGJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connectortop ↑
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connector
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector Connectors Structure Drawing Of SeriesⅠ
1.Grommet :Fluid immersion at low altitude complies with GJB99A
2.Interfacial seal:Every contact is sealed in the insert interface.
3..Scoop-proof:Protect pins when blindly mated.
4.Mated seal:Receptacle is sealed with plug.
5.Five shell polarizations:Provide accurate location.
6.Socket insert interface:Interface is sealed to protect contacts.
7.Supporting ring:Provide reliably to install, remove and fix contacts.
8.Bayonet coupling.
9. Ground reed:Provide the shell conductivity before mated.
Note: Series ? is same as the above, but no interchangeability between two series.
Series I —Scoop-proof, bayonet coupling; Series ? —Scoop-proof, triple start, self-locking, threaded coupling.
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connector
Product FamilyGJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connectortop ↑
GJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connectorGJB599 series(MIL-C-38999)Ⅰcircular electrical connector GJB599 series(MIL-C-38999)Ⅰcircular electrical connector