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

Image Part Number Description / PDF Quantity Rfq
DX-36-CV1

DX-36-CV1

Hirose

CONN HOOD 36PIN

0

DX-68-CV1

DX-68-CV1

Hirose

CONN HOOD 68PIN

0

DH-27-CV1B

DH-27-CV1B

Hirose

CONN BACKSHELL 27POS 180DEG SHLD

0

DX-20-CV

DX-20-CV

Hirose

BACKSHELL 20POS

0

DX-28-CV1

DX-28-CV1

Hirose

Position Connector

0

DH-37-CT2B

DH-37-CT2B

Hirose

CONN BACKSHELL 37POS 180DEG SHLD

13

DX30M-20-CV

DX30M-20-CV

Hirose

BACKSHELL PLASTIC 20 POS BEIGE

275

DX30M-110-CV1

DX30M-110-CV1

Hirose

BACKSHELL 110POS

20

DX30M-36-CV

DX30M-36-CV

Hirose

IDC CONN 36POS PLUG

0

DX-80-CV1

DX-80-CV1

Hirose

CONN HOOD 80PIN

0

DX30M-26-CV

DX30M-26-CV

Hirose

IDC CONN 26POS PLUG

31

DH-17-CT2B

DH-17-CT2B

Hirose

CONN BACKSHELL 17POS 180DEG SHLD

0

DX-80-CV

DX-80-CV

Hirose

BACKSHELL 80POS

0

DH-17-CT1B

DH-17-CT1B

Hirose

CONN BACKSHELL 17POS 180DEG SHLD

25

DH-51-CV1B

DH-51-CV1B

Hirose

CONN BACKSHELL 51POS 180DEG SHLD

0

DX-20-CV1

DX-20-CV1

Hirose

CONN HOOD 20PIN

0

DX30M-20-CV(10)

DX30M-20-CV(10)

Hirose

CONN BACKSHELL 20POS 180DEG SHLD

21

DX-50-CV3

DX-50-CV3

Hirose

CONN HOOD 50PIN

0

DH-51-CV2B

DH-51-CV2B

Hirose

CONN BACKSHELL 51POS 180DEG SHLD

57

FI-2015-CVS(50)

FI-2015-CVS(50)

Hirose

CONN BACKSHELL 15POS 90DEG GRAY

24

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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