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

Image Part Number Description / PDF Quantity Rfq
1731110284

1731110284

Woodhead - Molex

FCT HOOD S2 0 DEG MTL W/M3

100

1731110168

1731110168

Woodhead - Molex

FCT HOOD S1 45 DEG SHLD PLSTC

0

0751151018

0751151018

Woodhead - Molex

CONN BACKSHELL 18POS 180DEG SHLD

0

1731110345

1731110345

Woodhead - Molex

CONN BACKSHELL 9P 90DEG SHLD SLV

0

1731110318

1731110318

Woodhead - Molex

FCT HOOD S1 0 DEG MTL W/THMBSCRW

0

1731110248

1731110248

Woodhead - Molex

FCT HOOD S3 0 DEG MTL W/SCRWLCK

0

1731110377

1731110377

Woodhead - Molex

FCT HOOD

0

1731110233

1731110233

Woodhead - Molex

FCT HOOD S3 90 DEG PLSTC

0

1731110213

1731110213

Woodhead - Molex

FCT HOOD S2 45 DEG MTL W/THMBSCR

0

1731140142

1731140142

Woodhead - Molex

FCT HOOD S1 0 DEG MTL W/SCRWLCK

22

1731110100

1731110100

Woodhead - Molex

CONN BACKSHELL 37POS 70DEG BLACK

100

1731110726

1731110726

Woodhead - Molex

FCT HOOD

0

1731140388

1731140388

Woodhead - Molex

D-SUB WATERPROOFED PLASTIC BACKS

0

1731110733

1731110733

Woodhead - Molex

FCT HOOD

0

1731110346

1731110346

Woodhead - Molex

FCT HOOD S2 90 DEG MTL W/THMBSCR

0

1731110269

1731110269

Woodhead - Molex

FCT HOOD S5 45 DEG MTL W/SCRWLCK

0

1731110786

1731110786

Woodhead - Molex

FCT HOOD

0

1731110458

1731110458

Woodhead - Molex

FCT HOOD

0

1727040198

1727040198

Woodhead - Molex

CONN BACKSHELL 37POS 180DEG BLK

50

1731140384

1731140384

Woodhead - Molex

D-SUB WATERPROOFED PLASTIC BACKS

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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