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

Image Part Number Description / PDF Quantity Rfq
1731110021

1731110021

Woodhead - Molex

CONN BACKSHELL 25POS 180DEG BLK

61

5749626-2

5749626-2

TE Connectivity AMP Connectors

CONN BACKSHELL 25POS 120/180DEG

48

749608-2

749608-2

TE Connectivity AMP Connectors

CONN BACKSHELL 26POS 180DEG SHLD

135

957-025-020R121

957-025-020R121

NorComp

BACKSHELL GENDER CHANGER 25/25P

0

5745652-4

5745652-4

TE Connectivity AMP Connectors

CONN BACKSHELL 15POS 90DEG SHLD

199

950-037-010R011

950-037-010R011

NorComp

CONN BACKSHELL 37POS 60DEG GRAY

72

ACOV-SUB-37NB9

ACOV-SUB-37NB9

ASSMANN WSW Components

CONN BACKSHELL 37POS 180DEG BLK

565

979-015-020R121

979-015-020R121

NorComp

CONN BACKSHELL 15POS 180DEG SHLD

543

300X10799X

300X10799X

CONEC

25/25 POS. METALIZ.ADAP.HOOD

0

09670250452

09670250452

HARTING

Position Connector

118

5750752-2

5750752-2

TE Connectivity AMP Connectors

CONN BACKSHLL 68P 180DEG 10PC PT

0

974-037-010R011

974-037-010R011

NorComp

CONN BACKSHELL 37POS 40DEG BLACK

72

A97001-021

A97001-021

Omnetics

MICRO-D 21POS BACKSHELL KIT

18

2-5745174-7

2-5745174-7

TE Connectivity AMP Connectors

CONN BACKSHELL 37POS 180DEG SHLD

34

955-037-030R121

955-037-030R121

NorComp

CONN BACKSHELL 37P 45/180DEG SHD

0

994-025-030R121

994-025-030R121

NorComp

CONN BACKSHELL 25POS 180DEG SHLD

210

980-2000-352

980-2000-352

VEAM

CONN BACKSHELL 25POS 180DEG SHLD

247

3357-4125

3357-4125

3M

CONN BACKSHELL 25POS 180DEG SHLD

746

5745653-2

5745653-2

TE Connectivity AMP Connectors

CONN BACKSHELL 25POS 90DEG SHLD

148

1727040107

1727040107

Woodhead - Molex

CONN BACKSHELL 15POS 180DEG SHLD

88

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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