D-Sub, D-Shaped Connectors - Backshells, Hoods

Image Part Number Description / PDF Quantity Rfq
0543310201

0543310201

Woodhead - Molex

127 IO CABLE HSG ASSY 20CKT

0

1731110092

1731110092

Woodhead - Molex

CONN BACKSHELL 25POS 180DEG SHLD

0

1731110528

1731110528

Woodhead - Molex

FCT HOOD S1 0 DEG SHLD PLSTC

0

1731110329

1731110329

Woodhead - Molex

FCT HOOD S2 70 DEG SHLD PLSTC W/

0

1731110138

1731110138

Woodhead - Molex

CONN BACKSHELL 9P 90/180DEG GRY

0

1731110094

1731110094

Woodhead - Molex

CONN BACKSHELL 50POS 180DEG SHLD

0

1731110445

1731110445

Woodhead - Molex

FCT HOOD

0

1731140310

1731140310

Woodhead - Molex

FCT CONNECTOR HOOD KIT

0

1731110285

1731110285

Woodhead - Molex

FCT HOOD S2 0 DEG SHLD PLSTC

0

1731110453

1731110453

Woodhead - Molex

FCT HOOD

0

1731110278

1731110278

Woodhead - Molex

FCT HOOD S3 0 DEG MTL

0

1731110109

1731110109

Woodhead - Molex

CONN BACKSHELL 25POS 70DEG SHLD

0

1731110490

1731110490

Woodhead - Molex

FCT HOOD S3 0 DEG SHLD PLSTC WO/

0

1731110286

1731110286

Woodhead - Molex

FCT HOOD S4 70 DEG SHLD PLSTC

0

1731110509

1731110509

Woodhead - Molex

FCT HOOD S5 0/90 DEG SHLD PLSTC

0

1731140290

1731140290

Woodhead - Molex

FCT BUS CONNECTOR

0

1731110390

1731110390

Woodhead - Molex

FCT HOOD S3 90 DEG PLSTC

0

1731110447

1731110447

Woodhead - Molex

FCT HOOD

0

1731110146

1731110146

Woodhead - Molex

CONN BACKSHELL 37P 90/180DEG GRY

0

1731110363

1731110363

Woodhead - Molex

FCT HOOD S2 0 DEG SHLD PLSTC W/T

0

D-Sub, D-Shaped Connectors - Backshells, Hoods

1. Overview

D-Subminiature (D-Sub) connectors are electrical connectors with a D-shaped metal shell, providing reliable signal transmission and mechanical protection. Backshells and hoods are critical components that secure cable connections, provide strain relief, and protect against electromagnetic interference (EMI) and environmental factors. These components are essential in industrial, telecommunications, and medical applications where signal integrity and durability are paramount.

2. Main Types and Functional Classification

TypeFunctional FeaturesApplication Examples
Standard BackshellsBasic strain relief and EMI shieldingIndustrial control systems
Panel-Mount BackshellsSecure connectors to panels or enclosuresTelecom rack equipment
EMI/RFI Shielded HoodsEnhanced shielding for high-frequency signalsMilitary communication devices
Cable Clamp BackshellsIntegrated cable clamping mechanismsFactory automation machinery
Weatherproof HoodsIP67-rated protection against moisture/dustOutdoor surveillance systems

3. Structure and Components

Typical backshells/hoods consist of: - Metal Shell: Aluminum or steel for EMI shielding and durability - Locking Mechanism: Screws, threaded couplings, or bayonet locks - Cable Entry: Threaded ports or clamping systems - Sealing Glands: Rubber gaskets for environmental protection - Mounting Features: Flanges or panel cutouts for secure installation

4. Key Technical Specifications

ParameterImportance
Shielding Effectiveness (100kHz-10GHz): 60-100dBMaintains signal integrity in high-noise environments
IP Rating (IP65-IP68)Determines protection against dust/water ingress
Operating Temperature: -55 C to +125 CEnsures reliability in extreme conditions
Vibration Resistance: 10-2000Hz, 10GPrevents disconnection in dynamic environments
Material Corrosion ResistanceExtends lifespan in industrial/chemical environments

5. Application Fields

  • Industrial Automation: PLCs, CNC machines, factory sensors
  • Telecommunications: Routers, base stations, fiber optic equipment
  • Medical Equipment: Imaging systems, patient monitors
  • Aerospace: Avionics, flight control systems
  • Railway: Signaling systems, onboard diagnostics

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
TE ConnectivityD-Sub Backshell 1-1417087-0EMI shielding, IP67 rated
Amphenol97-3107 SeriesPanel-mount with threaded coupling
Molex1055 SeriesIntegrated cable clamp, RoHS compliant
ITT CannonCDM BackshellMilitary-grade environmental protection

7. Selection Recommendations

Key considerations include: - Installation Type: Panel-mount vs. inline cable configurations - Environmental Demands: Temperature extremes, chemical exposure - Shielding Requirements: EMI levels in industrial vs. commercial settings - Mechanical Stress: Vibration levels in transportation applications - Compliance Standards: MIL-STD-810, IEC 60529 certifications

8. Industry Trends

Current development directions include: - Miniaturization while maintaining shielding performance - Integrated hybrid connectors for power/data transmission - Advanced materials (e.g., conductive polymers) for weight reduction - Smart backshells with built-in condition monitoring sensors - Increased adoption of IP67+ rated hoods in IoT edge devices

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