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

Image Part Number Description / PDF Quantity Rfq
1731110088

1731110088

Woodhead - Molex

CONN BACKSHELL 25POS 180DEG SHLD

187

1727040193

1727040193

Woodhead - Molex

CONN BACKSHELL 15POS 180DEG SHLD

10

1727040108

1727040108

Woodhead - Molex

CONN BACKSHELL 25POS 180DEG SHLD

98

1727040199

1727040199

Woodhead - Molex

CONN BACKSHELL 50POS 180DEG SHLD

50

1731110010

1731110010

Woodhead - Molex

CONN BACKSHELL 25POS 90DEG GRAY

144

1731110026

1731110026

Woodhead - Molex

CONN BACKSHELL 25POS 180DEG BLK

178

1727040119

1727040119

Woodhead - Molex

CONN BACKSHELL 25P 90/180DEG GRY

0

1727040195

1727040195

Woodhead - Molex

CONN BACKSHELL 25POS 180DEG SHLD

7

1731110064

1731110064

Woodhead - Molex

CONN BACKSHELL 50POS 45DEG SHLD

23

1731110132

1731110132

Woodhead - Molex

CONN BACKSHELL 9POS 180DEG SHLD

0

1731100020

1731100020

Woodhead - Molex

CONN BACKSHELL 15POS 180DEG BLK

46

1731110385

1731110385

Woodhead - Molex

FCT HOOD

0

1731110305

1731110305

Woodhead - Molex

CONN BACKSHELL 9POS 180DEG SHLD

0

1731110295

1731110295

Woodhead - Molex

FCT HOOD S3 0/90 DEG PLSTC W/SCR

0

1731110218

1731110218

Woodhead - Molex

CONN BACKSHELL 50POS 180DEG SHLD

50

1731110236

1731110236

Woodhead - Molex

FCT HOOD S3 20 DEG MTL W/THRD

0

1731140159

1731140159

Woodhead - Molex

FCT HOOD S5 0 DEG MTL W/SCRWLCK

0

1731110289

1731110289

Woodhead - Molex

FCT HOOD S2 0 DEG PLSTC

0

1731110316

1731110316

Woodhead - Molex

FCT HOOD S2 0/90 DEG SHLD PLSTC

0

1731110601

1731110601

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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