38999 Space Grade
ESA/SCC 3401
Contents
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38999 Space Grade ESA/SCC 3401
SCC Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
Quality Assurance Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
CHART V - Lot Acceptance Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Materials & Finishes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
Environmental characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
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38999 Series I ESA/SCC 3401-052
Part Number / Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
TYPE 00 : Square flange receptacle front mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
TYPE 03 : Square flange receptacle back mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
TYPE 06G : Plug with grounding ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
TYPE 07 : Single hole mounting receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
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38999 Series II ESA/SCC 3401-044
Part Number / Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
TYPE 03 : Square flange receptacle (back mounting) . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
TYPE 06 and 06G : Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
TYPE 07 : Single hole mounting receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
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38999 Series III ESA/SCC 3401-056
Part Number / Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
TYPE 00 : Square flange receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
TYPE 06G : Plug with grounding ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
TYPE 66G : Plug with mirror image contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
TYPE 07 : Single hole mounting receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
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38999 Series III ESA/SCC 3401-070
Type 00 : Square flange receptacle straight spill . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
Type 07 : Single hole mounting receptacle straight spill . . . . . . . . . . . . . . . . . . . . . . . . . .78
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38999 Series III - Hermetic receptacle ESA/SCC 3401-051
Part Number / Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
TYPE 00 : Square flange receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
TYPE 01 : Solder mount receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
TYPE 07 : Single hole mounting receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
TYPE 77 H : Feedthrough receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
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38999 Series I, II, III & III Hermetic
Contact layouts for ESA/SCC 3401 052, 3401 044, 3401 056 & 3401 057 . . . . . . . . . . . . 83
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38999 Series : Crimp Contacts
Crimp contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
Tooling for crimp contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
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38999 Series : Accessories
Part Number / Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Table of variant types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
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38999 Space Grade
ESA/SCC 3401
MIL-DTL-38999
Circular connectors and savers
The following lines have been qualified to ESA/SCC 3401 :
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MIL-DTL-38999 Series I
: bayonet locking «scoop-proof» shell
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MIL-DTL-38999 Series II
: bayonet locking «low-profile» shell «non scoop-proof»
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MIL-DTL-38999 Series III
: screw-type locking «scoop-proof» shell
Electrical contact sizes range from # 22 to # 4.
SCC Specification/MIL DTL 38999 class G
ESA/SCC Part numbers
SCC 3401/052
SCC 3401/044
SCC 3401/058
SCC 3401/056
SCC 3401/045
SCC 3401/057
SCC 3401/062
SCC 3401/066
SCC 3401/070
SOURIAU Part numbers
8LTS
8TS
8975-xxxx
8DS
8975-xxxx
8DS-H
-
SN 1767
8DS
Description
Connectors with removable crimp contacts according to 38999 Series I
Connectors with removable crimp contacts according to 38999 Series II
Crimp contacts for 3401/052 and 3401/056
Connectors with removable crimp contacts according to 38999 Series III
Crimp contacts for 3401/044
Hermetic receptacles according to 38999 Series III
Backshells for 3401/052, 3401/056 and 3401/044
Triax crimp for 3401/056
Straight spill version
Quality Assurance Testing
• Qualification
Is the European Source approved to ESA/SCC circular connectors specifications and USA MIL-DTL-38999 Class G QPL Source
• Production control
Visual (100%)
Dimensional (by sampling)
Insulation resistance (100%)
Dielectric withstanding voltage (100%)
Contact retention (100%)
Female contact capability (100%)
• Final production tests
Visual (100%)
Dimensional (by sampling)
Intermateability
• Lot acceptance tests
Two levels are proposed according to the ESA/SC specification 3401 CHART V.
Lot acceptance level shall be specified in the purchase order (LAT1 and LAT2).
LAT 1
LAT2
Environmental and mechanical sub-group
Endurance sub-group
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38999 Space Grade
ESA/SCC 3401
Materials & Finishes
Materials
Shells
Aluminium alloy
Hermetic
: Passivated stainless steel
Beryllium copper
Bounded sandwich thermoset / silicone
or Thermoplastic / silicone
Hermetic
: Sintered glass
Beryllium copper
Copper alloy. Plating 1,27
Hermetic
: Nickel Iron
Aluminium alloy
1,27 micron gold mini. over 2 micron nickel
Nickel plated
Plating
Matt Electroless Nickel plated, Burr free
Note : 38999 Series II, plug with grounding : shell size 8, 10 and 12
are gold plated body and grounding (1,27 micron gold mini)
Nickel plated
Qualified non outgassing materials
TML
: 1%
according to ECSS-Q-70.02A
CVCM
: 0,1%
Grounding
Insulators
Contacts retaining clip
Contacts
Backshells
Electrical characteristics
Characteristics
Rated current
# 22 contacts
# 20 contacts
# 16 contacts
# 12 contacts
# 8 contacts
# 4 contacts
Insulation resistance
Contact resistance (low level current)
All
under 10 mA
Contact resistance (rated current)
# 22 contacts
# 20 contacts
# 16 contacts
# 12 contacts
# 8 contacts
# 4 contacts
Symbol
Rating
5,0
7,5
13
23
46
80
≥
10 000
8,0
14,0
7,0
4,0
3,5
0,55
0,45
Unit
I
A
RI
Rcl max.
MΩ
mΩ
Rcr max.
mΩ
Environmental characteristics
Characteristics
Operating temperature range
Storage temperature
Thermal shock
Damp heat
Mechanical endurance
Vibrations
Shock
Contact retention
# 22 contacts
# 20 contacts
# 16 contacts
# 12 contacts
# 8 contacts
# 4 contacts
Vacuum test (125°C/24 h)
63
Rating
-65 to +200
1000 h/200°C
from -65 to +200
10 cycles 24 h
500
20
50 g with an 11 ms
duration pulse
44
67
111
111
150
180
10
-6
Unit
°C
-
°C
-
cycles
g
-
ESA/SCC 3401
test method
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Para. 9.21
Para. 9.16
Para. 9.13.3
Para. 9.18
Para. 9.11
Para. 9.12.1
Para. 9.17
N
Torr
Para. 9.16