SNC
SN 855 Series
Applications
Nuclear hardened miniature connectors
with 4 contacts designed for use in :
- equipment for armoured military vehicles
- weapons systems
- civil and military aircraft.
Description
Plugs, receptacles, cable connecting recep-
tacles and backshells are made of copper
alloy and nickel plated. Stainless steel back-
shells are suitable for electron beam welding.
A screw-coupling system locks plug and
receptacle together.
Metal-to-metal bottoming provides enhan-
ced electrical continuity between plug and
receptacle.
Crimp type gold-plated contacts are rear
removable. The insulators are moulded in
thermoset material.
The interfacial seals and o-rings are silicone
rubber.
Steel hermetic receptacles are equipped
with male, solder, gold-plated, steel contacts.
Panel sealing interface is achieved by a
conductive seal.
Plugs, receptacles and cable connecting
receptacles must be fitted with backshells.
Standards
Aerospatiale
N° 462062/89
Characteristics
Mechanical
• Mechanical endurance :
≥
200 mating unmating operations
• Retention of contacts in insert :
≥
45 N
Electrical
• Dielectric withstanding
- voltage 1200 V rms
- hermetic 500 V rms
• Max current rating per contact
- standard : 5 A
- hermetic : 3 A
• Insulation resistance
- under 500 V dc
≥
5000 MΩ
- hermetic
≥
1000 MΩ
• Contact resistance :
≤
12 mΩ
• Shell to shell continuity under max.
coupling torque 0.8 N.m.
for coupling nut and 0.5 N.m.
for backshell
≤
1 mΩ
• Transfer impedance :
for a 10 dB/m
power launched through a 50
Ω
resistor level measured accross 50
Ω
in the 1 kHz - 100 MHz
bandwidth to be
≤
- 85 dB/m
Environmental
•
•
•
•
•
•
Operating temperature range : - 55°C to + 200° C
Splash-proof
-7
3
Hermetic leakage :
≤
7,77.10 atm. cm /s
Salt spray 48 Hrs
Vibration : 5g - 10 to 2000 Hz
Mechanical shock : 50 g duration 11 ms
Mass
• Connectors + contacts without backshell
female plug or male receptable
≤
6g
• Backshell type 040D
≤
3g
Ordering information
basic series
version
shell type
0
- standard
1
- low profile
0
-
2
- hermetic
6
7
8
9
-
plug
-
jam-nut receptacle
-
square flange hermetic receptacle
-
Jam-nut hermetic receptacle
SN 855
square flange receptacle
(for standard version only)
1
-
cable connecting receptacle
5
-
solder fixing hermetic receptacle
0
0
4
P
010D W
L
number contacts
4
- 7
contact type
backfittings
P
- male
S
- female
000
-
Without backshell
001
-
Backnut for standard version
Backshell for external magnaforming (for standard version)
010D
-
Straight outlet
010C
-
Angled outlet
Backshell for electron beam welding (for standard version)
020D
-
Straight outlet
020C
-
Angled outlet
030D
-
Backshell with electrical continuity (for low profile version)
040D
-
Backshell for shielded cables (for low profile version)
Backshell for shielded cables (for standard version)
050D
-
Straight outlet
050C
-
Angled outlet
Unsealed backshell with electrical continuity (for low profile version)
060D
-
Straight outlet
Backshell for screen termination (for low profile version)
080D
-
Straight outled
Backshell for screen termination (for standard version)
081D
-
Straight outlet
Cable clamp backshell (for standard version)
090D
-
Straight outlet
Backshell for internal magnaforming (for standard version)
011D
-
Straight outlet
N
- normal (not included in part number)
W
- 45°
L
- connector supplied without contacts
orientations
suffix
125
SNC
SN 855 Series
Contacts
basic series
type of contact
100
101
102
103
104
105
-
-
-
-
-
-
SN 855
male standard contact
female
standard contact
alumel male contact
alumel female contact
chromel male contact
chromel female contact
100
Characteristics
• Contact size : AWG 22
• Admissible wire range : AWG28 to AWG22
(0.095 mm
2
to 0.40 mm
2
sections)
• Diameter across insulation : 0.76 to 1.37 mm
• Colour code for alumel contact : black
• Colour code for chromel contact : yellow
Dimensions -
mated and unmated connectors with backshells
Standard square flange receptacle
A
A
Type : 001
29.70
1.169
Plug type : 06
backshell standard version
A Max
A
D
36.00
1.417
B Max
A
28.70
1.130
C Max
A
25.30
.996
D
35.00
1.378
D
31.60
1.244
D
Type : 010 D
41.60
1.638
48.00
1.890
40.70
1.602
47.00
1.850
37.20
1.465
43.60
1.717
Standard jam-nut receptacle
Type : 011 D
B
A
Type : 020D
39.40
1.551
44.40
1.748
51.00
2.008
43.50
1.713
50.00
1.969
40.00
1.575
46.60
1.835
47.50
1.870
38.50
1.516
45.00
1.772
35.00
1.378
41.50
1.634
D
Type : 050D
33.40
1.315
40.00
1.575
32.50
1.280
39.00
1.535
29.00
1.142
35.60
1.402
Solder fixing hermetic receptacle
C
A
Type : 010C
39.60
1.559
46.00
1.811
39.00
1.535
45.50
1.791
35.20
1.386
42.00
1.654
Type : 090D
D
36.70
1.445
43.10
1.697
35.80
1.409
42.10
1.657
32.30
1.272
38.70
1.524
Type : 081D
Hermetic square flange receptacle
A
A
Plug type : 16
backshell low profile version
40.50
1.594
46.90
1.846
39.60
1.559
45.90
1.807
36.10
1.421
42.50
1.673
Type : 030D
D
30.00
1.181
36.00
1.417
29.00
1.142
35.00
1.378
25.50
1.004
31.60
1.244
Type : 060D
Hermetic jam-nut receptacle
B
Type : 040D
31.00
1.220
37.50
1.476
30.20
1.189
36.50
1.437
27.00
1.063
33.00
1.299
33.50
1.319
39.50
1.555
32.50
1.280
38.50
1.516
29.00
1.142
35.00
1.378
A
Type : 080D
35.60
1.402
41.60
1.638
34.60
1.362
40.60
1.598
31.20
1.228
37.20
1.465
D
126
A : mated
D : unmated
SNC
SN 855 Series
Dimensions
Connectors with 4 contacts (for connectors with 7 contacts, please consult us)
Receptacles and cable connecting receptacles
Plugs
Square flange receptacle type : 00
2 Max./
.079
9
13 Max./
.512
Ø 11.30 Max.
/.445
Standard plug type : 06
9/
.354
9 Max.
/.354
1.70 Max.
/.067
22.20 Max./
.874
9
13 Max./
.512
13 maxi.
22 Max./
.866
10/
.394
Cable connecting receptacle type : 01
Ø 10.10 Max.
.398
Low profile plug type : 16
9 Max.
/.354
22.20 Max./
.874
8/
.315
Ø 11.30 Max.
/.445
17.30 Max./
.681
10/
.394
Jam-nut receptacle type : 07
10/
.394
Hermetic receptacles
Solder fixing receptacle type : 25
0.80 Max./
.031
6.40 Max./
.252
.398
22.20 Max./
.874
Ø 11.50 Max.
/.453
Ø 10.10 Max.
10.70 Max.
/.421
7.20 Max./
.283
Ø8 Max./
.315
1.3 Max./
.051
Cable connecting receptacle type : 11
(low profile)
Ø 10.10 Max.
.398
Square flange receptacle type : 28
1.70 Max./
.067
6.5 Max./
.256
8/
.315
17.50 Max./
.689
10.70 Max./
.421
9/
.354
9
/
.354
13 Max./
.512
9 Max.
/.354
Jam-nut receptacle type : 17
(low profile)
Jam-nut receptacle type : 29
10/
.394
6 Max.
Ø 11.50 Max./
.453
17.60 Max./
.693
Ø 11.50 Max./
.453
10.70 Max.
3 Max.
/.118
Tooling
Crimping tools :
•
•
•
•
Crimping pliers : M 22520/2.01 or Souriau 8476.01
Locator for male contact : M 22520/2.09 or Souriau 8476.09
Locator for female contact : M 22520/2.06 or Souriau 8476.06
Conductor stripping lenght : 4 mm
.421
Contact insertion/extraction tools :
• Disposable plastic tools : for insertion and extraction : 8599.0022
• Angled metal tools :
- for insertion : 8599 M22C
- for extraction : 8599 E22C
Note : Coupling torques : to obtain hardening performances mentioned, the following torques must be applied :
-to the coupling nut : 0.8 N.m
-to the panel nut : 1.8 N.m
-to the backshell : 0.5 N.m
10/
.394
10.70 Max./
.44
13 Max./
.512
127
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