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

Image Part Number Description / PDF Quantity Rfq
0751150048

0751150048

Woodhead - Molex

CONN BACKSHELL 48POS 180DEG SHLD

0

1731110147

1731110147

Woodhead - Molex

CONN BACKSHELL 50P 90/180DEG GRY

0

1731110106

1731110106

Woodhead - Molex

CONN BACKSHELL 50POS 180DEG BLK

0

1731110874

1731110874

Woodhead - Molex

FCT HOOD

0

1731110502

1731110502

Woodhead - Molex

FCT HOOD S4 0 DEG MTL W/THMBSCRW

0

1731110144

1731110144

Woodhead - Molex

CONN BACKSHELL 15P 90/180DEG GRY

0

1731110371

1731110371

Woodhead - Molex

FCT HOOD S2 0 DEG PLSTC

0

0543310261

0543310261

Woodhead - Molex

127 IO CABLE HSG ASSY 26CKT

0

1731110452

1731110452

Woodhead - Molex

FCT HOOD

0

1731140372

1731140372

Woodhead - Molex

FCT CONNECTOR HOOD KIT

0

1731110665

1731110665

Woodhead - Molex

FCT HOOD

0

1731110156

1731110156

Woodhead - Molex

CONN BACKSHELL 50POS 180DEG SHLD

0

1731110634

1731110634

Woodhead - Molex

FCT HOOD

0

1731110158

1731110158

Woodhead - Molex

FCT HOOD S3 0 DEG MTL

0

1731110310

1731110310

Woodhead - Molex

FCT HOOD S5 45 DEG MTL W/THMB-SC

0

1731100084

1731100084

Woodhead - Molex

CONN BACKSHELL 50POS 180DEG BLK

0

1731100255

1731100255

Woodhead - Molex

FCT HOOD S2 0 DEG W/SCREWLCK

0

1731140092

1731140092

Woodhead - Molex

FCT CONNECTOR HOOD KIT

0

1731110448

1731110448

Woodhead - Molex

FCT HOOD

0

1731110574

1731110574

Woodhead - Molex

FCT HOOD

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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