D-Sub, D-Shaped Connectors - Accessories

Image Part Number Description / PDF Quantity Rfq
1731121344

1731121344

Woodhead - Molex

FCT ACCESSORY

0

1731120656

1731120656

Woodhead - Molex

FCT SEALING PLUGS GREEN

0

1731120441

1731120441

Woodhead - Molex

D-SUB SPRING LOCKS

0

1731121137

1731121137

Woodhead - Molex

FCT DUST CAP

0

1731121332

1731121332

Woodhead - Molex

FCT ACCESSORY

0

1731120351

1731120351

Woodhead - Molex

FCT SEALING PLUGS RED

0

1731120633

1731120633

Woodhead - Molex

FCT DUST CAP S5 PLSTC RCPT ANTI

0

1731120364

1731120364

Woodhead - Molex

D-SUB PLASTIC DUST CAPS

0

1731121116

1731121116

Woodhead - Molex

FCT MTL BRACKET

0

1731121190

1731121190

Woodhead - Molex

FCT SLIDE LOCK S1

0

1731120536

1731120536

Woodhead - Molex

FCT SIZE1-4 SPRING LOCK PLATE

0

1731121108

1731121108

Woodhead - Molex

FCT BRACKET MTL TIN PLATED

0

1731121364

1731121364

Woodhead - Molex

FCT ACCESSORY

0

1731121319

1731121319

Woodhead - Molex

FCT ACCESSORY

0

1731120701

1731120701

Woodhead - Molex

FCT FRONT SEAL S1 PLG/ML

0

1731121349

1731121349

Woodhead - Molex

FCT ACCESSORY

0

1731120123

1731120123

Woodhead - Molex

FCT DUST CAP S1 SHLD PLSTC PLG W

0

0622004700

0622004700

Woodhead - Molex

VHDCI SPARE PARTS KIT

0

1727040127

1727040127

Woodhead - Molex

FCT SLIDE LOCK S5

200

1731121343

1731121343

Woodhead - Molex

FCT ACCESSORY

0

D-Sub, D-Shaped Connectors - Accessories

1. Overview

D-Subminiature (D-Sub) connectors are a family of electrical connectors characterized by a D-shaped metal shielding shell and multiple parallel contacts. They provide reliable signal and power transmission in demanding environments. These connectors remain critical in industrial automation, telecommunications, and legacy computer systems despite emerging alternatives. Their mechanical robustness and customizable configurations ensure continued relevance in specialized applications.

2. Main Types and Functional Classification

TypeKey FeaturesApplication Examples
DB-9 (DE-9)9 contacts, compact sizeRS-232 serial communication, PC COM ports
DB-15 (HD-15)15 contacts, high-densityVGA video interfaces, industrial sensors
DB-2525 contacts, parallel signalingOlder printer ports, industrial control systems
DB-3737 contacts, rugged designIndustrial instrumentation, military equipment

3. Structure and Components

Standard D-Sub connectors consist of: - Metal shell: Zinc or aluminum alloy housing with EMI shielding - Insulator: High-temperature thermoplastic (e.g., LCP, PBT) - Contacts: Phosphor bronze or beryllium copper with gold/tin plating - Mounting hardware: Threaded nuts or panel-mount flanges Variants include solder cup, PCB mount, and crimp termination options with optional environmental seals.

4. Key Technical Specifications

ParameterTypical RangeSignificance
Current Rating1-10A per contactDetermines power transmission capability
Voltage Rating50-600VEnsures dielectric insulation safety
Contact Resistance5-20m Impacts signal integrity
Insulation Resistance1000M minPrevents leakage currents
Operating Temp-55 C to +125 CDefines environmental tolerance

5. Application Fields

  • Computer Systems: Legacy serial/parallel ports, KVM switches
  • Industrial Automation: PLC interfaces, sensor/actuator connections
  • Telecommunications: Router/console ports, test equipment
  • Medical Devices: Diagnostic equipment data interfaces
  • Aerospace: Avionics control systems, ground support equipment

6. Leading Manufacturers and Products

ManufacturerKey ProductsSpecialization
TE ConnectivityDEUTSCH D-Sub seriesMilitary/aerospace grade connectors
Amphenol97-Series D-SubsHigh-density industrial connectors
MolexDuraCon D-SubCommercial/industrial applications
ITT CannonDelta-D-SubHarsh environment solutions

7. Selection Guidelines

Key selection factors: - Signal/power requirements (contact count, current/voltage needs) - Environmental conditions (temperature, vibration, moisture) - Mechanical constraints (panel space, mating cycles) - Shielding requirements (EMI/RFI protection level) - Termination method (solder, crimp, PCB mount) - Compliance standards (MIL-STD, RoHS, REACH) Example: Selecting DB-9 with gold contacts and IP67 rating for outdoor industrial control cabinets.

8. Industry Trends

Emerging trends include: - Miniaturization (e.g., micro D-Sub at 2.5mm pitch) - High-speed variants supporting USB 3.0+ signaling - Integration with fiber optic/hybrid contact designs - Adoption of lead-free plating processes - Modular designs enabling hot-swap functionality - Increased use in IoT edge devices for legacy system compatibility

RFQ BOM Call Skype Email
Top