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8977-20A

Description
Circular Connector, 128 Contact(s), Aluminum Alloy, Female, Crimp Terminal, Receptacle,
CategoryThe connector   
File Size349KB,8 Pages
ManufacturerSOURIAU
Download Datasheet Parametric View All

8977-20A Overview

Circular Connector, 128 Contact(s), Aluminum Alloy, Female, Crimp Terminal, Receptacle,

8977-20A Parametric

Parameter NameAttribute value
MakerSOURIAU
Reach Compliance Codeunknown
Is SamacsysN
Back shell typeSOLID
Body/casing typeRECEPTACLE
Connector typeCIRCULAR CONNECTOR
Contact to complete cooperationNOT SPECIFIED
Contact point genderFEMALE
Coupling typeSNAP
DIN complianceNO
empty shellNO
Environmental characteristicsENVIRONMENT RESISTANT
Filter functionNO
IEC complianceNO
MIL complianceNO
Plug informationMULTIPLE MATING PARTS AVAILABLE
Mixed contactsNO
Installation typeCABLE AND PANEL
OptionsGENERAL PURPOSE
Shell surfaceNICKEL PLATED
Shell materialALUMINUM ALLOY
Housing size25
Termination typeCRIMP
Total number of contacts128
Base Number Matches1
8977 Series
Circular Robotic Connectors
In the frame of Space Station Alpha program, SOURIAU has developed and qualified a series
of Quick Disconnect high reliability circular connector for robotic operations. This hardware is
used as ORU interface on the JEM (Japanese Experiment Module Exposed) Facility which is
part of the Japanese contribution to the Space Station. These connectors feature :
• Low Insertion Force contacts
• Thermal gradient compatibility
• Integrated misalignement catching system
• High durability (6000 operations)
• High EMI shielding efficiency
• Deep space environment (Atox) compatibility
• Arrangements from MIL-DTL-38999.
Performances
Mechanical and electrical
Mechanical
Mass
• < 180 g for ORU plug
• < 95 g for receptacle
ORU plug misalignments
Da
= ± 0,9° (movement around the X axis)
D b
= ± 0,9° (angle authorized between the panels)
r
= 1,95 mm (plane movement according to Y and Z requirements)
ORU receptacle overstroke
DX
1,5 mm
Electrical
Contact resistance as per MIL-DTL 39029
Materials and finishes
Components
Shells (receptacle & plug)
Inserts
- Insulator
- Grommet
Contacts
Contact retaining clip
Receptacle & plug bottom plate
and mechanical parts
Springs
Material
Aluminium alloy 7075
Finish
Nickel plating
Connector
Epichlorhydrile + Polyal + Glass fiber
or Polyetherimide resin
Silicone
see contacts L.I.F.
Copper alloy
Aluminium alloy 7075
Stainless steel
-
see contacts L.I.F.
-
Nickel plating
-
LSD (*)
(1)
LSD
:
Lauching Security Device
Mating/Demating forces
Mating force (N) (2)
25L-3
25L-7
25-19
25-20
(1)
25-35
25-61
62
84
125
161
142
110
Demating force (N)
52
63
102
158
116
84
(1) Configuration 3 # 16 optical contacts + 3 # 16 electrical contacts
(2) At room condition before compliance mechanism acting.
100
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