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

Image Part Number Description / PDF Quantity Rfq
1731110794

1731110794

Woodhead - Molex

FCT HOOD

0

1731110668

1731110668

Woodhead - Molex

FCT HOOD

0

1731110214

1731110214

Woodhead - Molex

FCT HOOD S3 0 DEG MTL W/4-40 UNC

0

1731110201

1731110201

Woodhead - Molex

FCT HOOD S1 70 DEG SHLD PLSTC W/

0

1727040118

1727040118

Woodhead - Molex

CONN BACKSHELL 25POS 180DEG SHLD

44100

1731110188

1731110188

Woodhead - Molex

FCT HOOD S1 90 DEG PLSTC

100

1731140393

1731140393

Woodhead - Molex

D-SUB WATERPROOFED PLASTIC BACKS

0

1731110476

1731110476

Woodhead - Molex

FCT HOOD

0

1731110154

1731110154

Woodhead - Molex

CONN BACKSHELL 25POS 180DEG SHLD

0

0751151048

0751151048

Woodhead - Molex

CONN BACKSHELL 48POS 180DEG SHLD

0

1731110324

1731110324

Woodhead - Molex

FCT HOOD S1 70 DEG SHLD PLSTC W/

90

1731110622

1731110622

Woodhead - Molex

FCT HOOD

0

1731110256

1731110256

Woodhead - Molex

FCT HOOD S1 0 DEG SHLD PLSTC W/T

0

1731110778

1731110778

Woodhead - Molex

FCT HOOD

0

1731110089

1731110089

Woodhead - Molex

CONN BACKSHELL 37POS 180DEG SHLD

66

1731110409

1731110409

Woodhead - Molex

FCT HOOD

0

0751150028

0751150028

Woodhead - Molex

CONN BACKSHELL 28POS 180DEG SHLD

0

1727040113

1727040113

Woodhead - Molex

CONN BACKSHELL 15POS 70DEG SHLD

100

1731110212

1731110212

Woodhead - Molex

FCT HOOD S4 0 DEG MTL

0

1731110002

1731110002

Woodhead - Molex

CONN BACKSHELL 9POS 180DEG BLACK

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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