Circular Connectors - Backshells and Cable Clamps

Image Part Number Description / PDF Quantity Rfq
M85049/38S19W

M85049/38S19W

CONN CABLE CLAMP SZ 19 F OLIVE

269

TXR40AB00-1610BI

TXR40AB00-1610BI

TE Connectivity Aerospace Defense and Marine

CONN BACKSHELL ADPT SZ 17E OLIVE

5

M85049/38-21A

M85049/38-21A

CONN CABLE CLAMP SZ 21 G BLK

0

R85049/88-23Z03

R85049/88-23Z03

TE Connectivity Aerospace Defense and Marine

CONN BACKSHELL BAND SZ 23 H BLK

36

A85049399A

A85049399A

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 9 BLACK

52

M85049/38-25A

M85049/38-25A

CONN CABLE CLAMP SZ 25 J BLK

63

TXR41AB00-1204AI

TXR41AB00-1204AI

TE Connectivity Aerospace Defense and Marine

CONN BACKSHELL ADPT SZ12 13 OLIV

0

UT012AD

UT012AD

Souriau-Sunbank by Eaton

SHRINK BOOT ADAPTER SHELL SZ 12

2

M85049/91-25T

M85049/91-25T

Socapex (Amphenol Pcd)

COMPOSITE STRAIN RELIEF

25

M85049/38-9N

M85049/38-9N

CONN CABLE CLAMP SZ 9 A SLVR

120

JL04-2428CK(20)-CR-R

JL04-2428CK(20)-CR-R

JAE Electronics

CONN CABLE CLAMP SZ 24/28 BLACK

0

CL103041

CL103041

Souriau-Sunbank by Eaton

CONN BACKSHELL SZ 3 PG21 BLACK

0

IP-UNCC14ZG

IP-UNCC14ZG

PEI-Genesis

UNIVERSAL 14 GREY ZINC NCKL

40

N/MS3057-10A

N/MS3057-10A

JAE Electronics

CONN CABLE CLAMP SZ 18 1-20 BLK

63

IP-UNCB14W

IP-UNCB14W

PEI-Genesis

UNIVERSAL 14 OLIVE DRAB CAD

58

IP-UNAK15A-PG16

IP-UNAK15A-PG16

PEI-Genesis

CG ADAPTER D/15 BLACK PG16

623

IP-UNAC18B-PG16

IP-UNAC18B-PG16

PEI-Genesis

CG ADAPTER 18 BLACK PG16

60

A8504952S40W

A8504952S40W

Socapex (Amphenol Pcd)

CONN CABLE CLAMP SZ 40 OLIVE

78

213902-3

213902-3

TE Connectivity AMP Connectors

CONN BACKSHELL W/CLAMP SZ 17 BLK

33

UT0S14JCS

UT0S14JCS

Souriau-Sunbank by Eaton

CONN BACKSHELL W/CLAMP SZ 14

68

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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