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

Image Part Number Description / PDF Quantity Rfq
1731110506

1731110506

Woodhead - Molex

FCT HOOD S3 0/90 DEG SHLD PLSTC

0

1731110499

1731110499

Woodhead - Molex

FCT HOOD S5 0 DEG PLSTC W/THMBSC

0

1731110101

1731110101

Woodhead - Molex

CONN BACKSHELL 50POS 70DEG BLACK

0

1731110111

1731110111

Woodhead - Molex

CONN BACKSHELL 50POS 70DEG SHLD

0

1731110182

1731110182

Woodhead - Molex

FCT HOOD S2 0 DEG MTL W/SCRWLCK

0

1731110312

1731110312

Woodhead - Molex

FCT HOOD S3 0 DEG MTL W/SCRWLCK

0

1731110323

1731110323

Woodhead - Molex

FCT HOOD S1 0 DEG SHLD PLSTC W/S

0

1731110435

1731110435

Woodhead - Molex

FCT HOOD

0

1731110567

1731110567

Woodhead - Molex

FCT HOOD

0

1731100088

1731100088

Woodhead - Molex

CONN BACKSHELL 15POS 180DEG BLK

0

1731140316

1731140316

Woodhead - Molex

FCT CONNECTOR HOOD KID

0

1731110141

1731110141

Woodhead - Molex

CONN BACKSHELL 37P 90/180DEG GRY

0

1731110553

1731110553

Woodhead - Molex

FCT HOOD

0

1731110292

1731110292

Woodhead - Molex

FCT HOOD S4 0 DEG MTL SMALL W/SC

0

1731110417

1731110417

Woodhead - Molex

FCT HOOD

0

1731110657

1731110657

Woodhead - Molex

FCT HOOD

0

1731140578

1731140578

Woodhead - Molex

FCT CONNECTOR HOOD KIT

0

1731140319

1731140319

Woodhead - Molex

FCT CONNECTOR HOOD KID

0

1731110189

1731110189

Woodhead - Molex

FCT HOOD S1 45 DEG MTL W/THMBSCR

0

1731110571

1731110571

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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