Circular Connectors - Backshells and Cable Clamps

Image Part Number Description / PDF Quantity Rfq
M85049/26-1-14W

M85049/26-1-14W

Socapex (Amphenol Pcd)

CONN BACKSHELL SZ14 7/8-20 OLIVE

0

A8504951S22N

A8504951S22N

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 22 SILVER

15

A8504951S20A

A8504951S20A

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 20 BLACK

3

A8504938S9A

A8504938S9A

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 9 BLACK

2

A8504951S18N

A8504951S18N

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 18 SILVER

0

A850493825A

A850493825A

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 25 BLACK

7

A8504951S20N

A8504951S20N

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 20 SILVER

15

A850493813A

A850493813A

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 13 BLACK

29

A8504952S16N

A8504952S16N

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 16 SILVER

20

M85049/91-15T

M85049/91-15T

Socapex (Amphenol Pcd)

COMPOSITE STRAIN RELIEF

10

M85049/38-11N

M85049/38-11N

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 11 SILVER

204

A850493825N

A850493825N

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 25 SILVER

29

A8504952S14A

A8504952S14A

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 14 BLACK

1

A8504952128N

A8504952128N

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 28 SILVER

0

M85049/90-13Z02

M85049/90-13Z02

Socapex (Amphenol Pcd)

BACKSHELL R/A BAND LOCK D38999 S

24

A8504952S48N

A8504952S48N

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 48 SILVER

30

M85049/52-1-14W

M85049/52-1-14W

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 14 OLIVE

741

A8504951114W

A8504951114W

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 14 OLIVE

14

A8504939S11A

A8504939S11A

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 11 BLACK

19

A8504952S40A

A8504952S40A

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 40 BLACK

100

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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