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

Image Part Number Description / PDF Quantity Rfq
1731110185

1731110185

Woodhead - Molex

FCT HOOD S2 0 DEG MTL W/SCRWLCK

483

1731110062

1731110062

Woodhead - Molex

CONN BACKSHELL 25POS 45DEG SHLD

517

1731110217

1731110217

Woodhead - Molex

FCT HOOD S5 0 DEG MTL W/SCRWLCK

4450

1731110085

1731110085

Woodhead - Molex

CONN BACKSHELL 50POS 180DEG SHLD

0

1731110023

1731110023

Woodhead - Molex

CONN BACKSHELL 50POS 180DEG BLK

0

1731110122

1731110122

Woodhead - Molex

CONN BACKSHELL 9POS 180DEG BLACK

85

1731110077

1731110077

Woodhead - Molex

CONN BACKSHELL 15POS 45DEG SHLD

0

1727040112

1727040112

Woodhead - Molex

CONN BACKSHELL 9POS 180DEG SHLD

19

1727040115

1727040115

Woodhead - Molex

CONN BACKSHELL 15P 90/180DEG GRY

138100

1731110025

1731110025

Woodhead - Molex

CONN BACKSHELL 15POS 180DEG BLK

157

1731110006

1731110006

Woodhead - Molex

CONN BACKSHELL 37POS 180DEG GRAY

244

1727040102

1727040102

Woodhead - Molex

CONN BACKSHELL 37POS 180DEG SHLD

83

1731110186

1731110186

Woodhead - Molex

FCT HOOD S4 45 DEG MTL W/SCRWLCK

953

1731110028

1731110028

Woodhead - Molex

CONN BACKSHELL 50POS 180DEG BLK

246

1731110065

1731110065

Woodhead - Molex

CONN BACKSHELL 37POS 180DEG SHLD

0

1731110013

1731110013

Woodhead - Molex

CONN BACKSHELL 9P 90/180DEG GRY

345

1731110014

1731110014

Woodhead - Molex

CONN BACKSHELL 15P 90/180DEG GRY

115

1731110018

1731110018

Woodhead - Molex

CONN BACKSHELL 50P 90/180DEG GRY

121

1731100019

1731100019

Woodhead - Molex

CONN BACKSHELL 9POS 180DEG BLACK

119

1727040098

1727040098

Woodhead - Molex

CONN BACKSHELL 15POS 180DEG SHLD

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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