Circular Connectors - Backshells and Cable Clamps

Image Part Number Description / PDF Quantity Rfq
M85049/39-23W

M85049/39-23W

CONN CABLE CLAMP SZ 23 H OLIVE

56

CL124030

CL124030

Souriau-Sunbank by Eaton

CLIPPER STR CABLE CLAMP SZ 4

172

A8504951114W

A8504951114W

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 14 OLIVE

14

980-8672-034

980-8672-034

VEAM

CONN BACKSHELL BLACK

0

A8504939S11A

A8504939S11A

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 11 BLACK

19

JR16WCC-6(71)

JR16WCC-6(71)

Hirose

CONN CABLE CLAMP SZ 16 M20 BLACK

7

A8504952S40A

A8504952S40A

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 40 BLACK

100

A8504952S10A

A8504952S10A

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 10 BLACK

78

A850493915N

A850493915N

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 15 SILVER

22

IP-UNCA20W

IP-UNCA20W

PEI-Genesis

UNIVERSAL 20 OLIVE DRAB CAD

140

TXR40AB00-1812AI

TXR40AB00-1812AI

TE Connectivity Aerospace Defense and Marine

CONN BACKSHELL ADPT SZ 19F OLIVE

24

206966-9

206966-9

TE Connectivity AMP Connectors

CONN BACKSHELL W/CLAMP SZ 13 BLK

2032

IP-UNAA16SA-PG16

IP-UNAA16SA-PG16

PEI-Genesis

CG ADAPTER 16S BLACK PG16

48

A8504938S21A

A8504938S21A

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 21 BLACK

14

ACT00AB-B-EL00N

ACT00AB-B-EL00N

TE Connectivity DEUTSCH Connectors

S RELIEF STR

50

TXR40AC00-0804AI

TXR40AC00-0804AI

TE Connectivity Aerospace Defense and Marine

CONN BACKSHELL ADPT SZ 9A SLVR

27

A8504951124W

A8504951124W

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 24 OLIVE

0

97-67-16-6

97-67-16-6

Amphenol Industrial

CONN CABLE CLAMP ADPT SZ 16/16S

27

R85049/88-15W02

R85049/88-15W02

TE Connectivity Aerospace Defense and Marine

CONN BACKSHELL BANDING SZ 15 D

23

UTG24AC

UTG24AC

Souriau-Sunbank by Eaton

CONN BACKSHELL W/CLAMP SZ 24

931

Circular Connectors - Backshells and Cable Clamps

1. Overview

Circular connectors backshells and cable clamps are critical electromechanical components that ensure secure cable termination, strain relief, and environmental protection in connector systems. Backshells provide mechanical support and shielding for cable-connector junctions, while cable clamps offer strain relief by securing cables to panels or equipment. These components are essential in maintaining signal integrity, preventing mechanical failure, and meeting industry-specific environmental standards across aerospace, industrial automation, and medical device applications.

2. Main Types and Functional Classification

TypeFunction FeaturesApplication Examples
Metal BackshellsEMI/RFI shielding, high durability, threaded couplingAerospace avionics systems
Plastic BackshellsLightweight, corrosion-resistant, quick-install designIndustrial IoT sensors
360 Cable ClampsFull-circle compression, vibration resistanceRobotics joint actuators
Split-shell ClampsField-installable, adjustable diameter rangeMarine communication systems
EMI Shielded ClampsIntegrated conductive gaskets, grounding contactsMilitary radar equipment

3. Structure and Components

Typical backshell assembly consists of: - Housing (aluminum alloy or thermoplastic) - Cable entry port with sealing ring (IP67 rated) - Strain relief mechanism (serrated clamping ring) - EMI shielding fingers (for metallic versions) - Panel mounting threads (UNF or metric) Cable clamp structure includes: - Two-part housing (upper/lower halves) - Elastomer compression sleeve - Threaded locking screws - Cable contact surface (textured for grip) - Optional grounding tab

4. Key Technical Specifications

ParameterValue RangeImportance
Material Temperature Range-55 C to +150 COperational reliability in extreme environments
IP Protection RatingIP65-IP68Dust/water ingress prevention
Cable Diameter Range2-25mmCompatibility with various cable sizes
Insertion Force0.5-5NImpact on field installation efficiency
Shielding Effectiveness60-100dBSignal integrity maintenance
Vibration Resistance10-2000Hz, 10GAerospace/military compliance

5. Application Fields

  • Aerospace: Flight control systems, satellite communication arrays
  • Medical: MRI scanners, patient monitoring equipment
  • Industrial: CNC machine cabling, factory automation sensors
  • Transportation: Rail signaling systems, EV battery connectors
  • Defense: Tactical radio systems, weapon guidance electronics

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
TE ConnectivityDuronic MS BackshellQuick-disconnect, MIL-DTL-38999 compliant
AmphenolSeries 5000 Cable ClampMulti-cable capacity, IP68 rated
MolexToughCrimp Shielded Backshell10G EMI shielding, vibration proof
Weidm llerPROFIBUS Cable ClampFieldbus protocol optimized design

7. Selection Recommendations

Key selection criteria include: - Environmental factors (temperature, humidity, chemical exposure) - Cable geometry (diameter, jacket material) - Mechanical requirements (vibration, pull-out force) - EMI/RFI shielding needs - Installation constraints (tool access, maintenance frequency) - Compliance standards (MIL-SPEC, IEC 60529) Example: For offshore wind turbine sensors, select stainless steel backshells with IP68 clamps and neoprene sealing to withstand saltwater corrosion and mechanical shock.

8. Industry Trends

Current development trends include: - Hybrid connectors integrating optical and electrical backshells - Additive manufacturing for custom cable clamp geometries - Smart clamps with embedded strain gauges for condition monitoring - Nano-coatings for enhanced corrosion resistance - Miniaturization for UAV and wearable medical device applications - Sustainability focus: Recyclable thermoplastic formulations

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