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

Image Part Number Description / PDF Quantity Rfq
1731110067

1731110067

Woodhead - Molex

CONN BACKSHELL 15POS 45DEG SHLD

0

1727040099

1727040099

Woodhead - Molex

CONN BACKSHELL 25POS 45DEG SHLD

152

1731110031

1731110031

Woodhead - Molex

CONN BACKSHELL 25POS 70DEG BLACK

8

1727040096

1727040096

Woodhead - Molex

CONN BACKSHELL 9POS 180DEG SHLD

0

1731110060

1731110060

Woodhead - Molex

CONN BACKSHELL 15POS 180DEG SHLD

0

1727040104

1727040104

Woodhead - Molex

CONN BACKSHELL 50POS 180DEG SHLD

63

1731110005

1731110005

Woodhead - Molex

CONN BACKSHELL 25POS 180DEG GRAY

24

1731110027

1731110027

Woodhead - Molex

CONN BACKSHELL 37POS 180DEG BLK

37

1727040101

1727040101

Woodhead - Molex

CONN BACKSHELL 37POS 45DEG SHLD

64

1731110020

1731110020

Woodhead - Molex

CONN BACKSHELL 15POS 180DEG BLK

162

1731110016

1731110016

Woodhead - Molex

CONN BACKSHELL 50P 90/180DEG GRY

13

1731110022

1731110022

Woodhead - Molex

CONN BACKSHELL 37POS 180DEG BLK

131

1727040114

1727040114

Woodhead - Molex

CONN BACKSHELL 15POS 180DEG SHLD

87100

1727040100

1727040100

Woodhead - Molex

CONN BACKSHELL 25POS 180DEG SHLD

0

1731100018

1731100018

Woodhead - Molex

CONN BACKSHELL 25POS 180DEG BLK

88

1731110183

1731110183

Woodhead - Molex

FCT HOOD S1 45 DEG MTL W/SCRWLCK

33

1731110030

1731110030

Woodhead - Molex

CONN BACKSHELL 15POS 70DEG BLACK

98

1727040181

1727040181

Woodhead - Molex

CONN BACKSHELL 50POS 180DEG SHLD

50

1731110003

1731110003

Woodhead - Molex

CONN BACKSHELL 9POS 180DEG GRAY

92

1731110071

1731110071

Woodhead - Molex

CONN BACKSHELL 9POS 180DEG SHLD

31

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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