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

Image Part Number Description / PDF Quantity Rfq
1731110469

1731110469

Woodhead - Molex

FCT HOOD

0

1731110530

1731110530

Woodhead - Molex

FCT HOOD S1 0 DEG SHLD PLSTC W/T

0

1731110105

1731110105

Woodhead - Molex

CONN BACKSHELL 37POS 180DEG BLK

0

1731110536

1731110536

Woodhead - Molex

FCT HOOD S2 0 DEG PLSTC W/SCRWLC

0

1731110406

1731110406

Woodhead - Molex

FCT HOOD S2 80 DEG MTL W/SCRWLCK

0

1731110142

1731110142

Woodhead - Molex

CONN BACKSHELL 50P 90/180DEG GRY

0

1731110337

1731110337

Woodhead - Molex

FCT HOOD S1 0 DEG SHLD PLSTC W/S

0

1731110410

1731110410

Woodhead - Molex

FCT HOOD

0

1731110114

1731110114

Woodhead - Molex

CONN BACKSHELL 25POS 180DEG SHLD

0

1731140317

1731140317

Woodhead - Molex

FCT CONNECTOR HOOD KID

0

1731110210

1731110210

Woodhead - Molex

FCT HOOD S2 0 DEG MTL

0

1731110503

1731110503

Woodhead - Molex

FCT HOOD S5 0 DEG MTL W/THMBSCRW

0

0543311361

0543311361

Woodhead - Molex

1.27 I/O CABLE HSG ASSY 36CKT

0

1731110266

1731110266

Woodhead - Molex

FCT HOOD S4 0 DEG MTL W/THMBSCRW

0

1731110211

1731110211

Woodhead - Molex

FCT HOOD S4 0 DEG MTL

0

1731110143

1731110143

Woodhead - Molex

CONN BACKSHELL 9P 90/180DEG SHD

0

1731110355

1731110355

Woodhead - Molex

FCT HOOD S3 45 DEG MTL W/SCRWLCK

0

1731100090

1731100090

Woodhead - Molex

CONN BACKSHELL 37POS 180DEG BLK

0

1731110110

1731110110

Woodhead - Molex

CONN BACKSHELL 37POS 70DEG SHLD

0

1731110421

1731110421

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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