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

Image Part Number Description / PDF Quantity Rfq
1727040182

1727040182

Woodhead - Molex

CONN BACKSHELL 9POS 180DEG SHLD

105

1731110015

1731110015

Woodhead - Molex

CONN BACKSHELL 25P 90/180DEG GRY

103

1731110090

1731110090

Woodhead - Molex

CONN BACKSHELL 50POS 180DEG SHLD

53

1731110059

1731110059

Woodhead - Molex

CONN BACKSHELL 50POS 180DEG SHLD

19

1731110202

1731110202

Woodhead - Molex

FCT HOOD S1 70 DEG SHLD PLSTC W/

76

1731110017

1731110017

Woodhead - Molex

CONN BACKSHELL 37P 90/180DEG GRY

274

1731110021

1731110021

Woodhead - Molex

CONN BACKSHELL 25POS 180DEG BLK

61

1727040107

1727040107

Woodhead - Molex

CONN BACKSHELL 15POS 180DEG SHLD

88

1731110194

1731110194

Woodhead - Molex

FCT HOOD S2 0 DEG SHLD PLSTC W/S

175

1731110011

1731110011

Woodhead - Molex

CONN BACKSHELL 37POS 90DEG GRAY

6

1731110033

1731110033

Woodhead - Molex

CONN BACKSHELL 50POS 70DEG BLACK

25

1731100016

1731100016

Woodhead - Molex

CONN BACKSHELL 9POS 180DEG BLACK

85

1727040196

1727040196

Woodhead - Molex

CONN BACKSHELL 25POS 180DEG BLK

30

1731110061

1731110061

Woodhead - Molex

CONN BACKSHELL 15POS 45DEG SHLD

0

1727040105

1727040105

Woodhead - Molex

CONN BACKSHELL 9POS 180DEG BLACK

6

1731110007

1731110007

Woodhead - Molex

CONN BACKSHELL 50POS 180DEG GRAY

88

1727040097

1727040097

Woodhead - Molex

CONN BACKSHELL 15POS 45DEG SHLD

2

1731110019

1731110019

Woodhead - Molex

CONN BACKSHELL 9POS 180DEG BLACK

230

1727040095

1727040095

Woodhead - Molex

CONN BACKSHELL 9P 45DEG SHLD SLV

498

1727040200

1727040200

Woodhead - Molex

CONN BACKSHELL 50POS 180DEG BLK

50

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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