D-Sub, D-Shaped Connectors - Accessories

Image Part Number Description / PDF Quantity Rfq
09670250603

09670250603

HARTING

D SUB IP 67 25P REAR MOUNT PLATE

0

09670500612

09670500612

HARTING

D SUB MA 50 POLE ANTIPCATIC PLAP

0

09670029075

09670029075

HARTING

D SUB_METALLIZED GROMMET

0

09670250612

09670250612

HARTING

D SUB FE 25 POLE ANTIPC. PLA. DU

0

61030005065

61030005065

HARTING

CRIMP FLANGE FOR HOOD 50P 4,5 -

0

09670370613

09670370613

HARTING

D SUB MA 37 POLE PLASTIC DUPC CA

0

09670250611

09670250611

HARTING

DSUB DUPC CAP MA 25P BLACK

0

61030005070

61030005070

HARTING

CRIMP FLANGE FOR HOOD 50P 7,5 -

0

09670029120

09670029120

HARTING

HEX EXTENDER KIT_M3

0

61030005069

61030005069

HARTING

CRIMP FLANGE FOR HOOD 50P 7,0 -

0

09670019980

09670019980

HARTING

METALLIZED PLASTIC PLUG

0

09670250715

09670250715

HARTING

D SUB FE 25 POLE METALLIZED PLAP

0

61030000165

61030000165

HARTING

CRIMP FLANGE FOR HOOD 9-37P 8,5-

0

09670500713

09670500713

HARTING

D SUB FE 50 POLE PLASTIC DUPC CA

0

61030000059

61030000059

HARTING

INDUCOM CRIMP FERRULE 12,5 - 13,

0

09670019962

09670019962

HARTING

D SUB CAB.CL. SMALL F.0452 / 045

0

09670029092

09670029092

HARTING

D SUB BLACK PLASTIC GROMMET SET

0

09670019987

09670019987

HARTING

SPRING LOCK FOR HOODS

0

61030005062

61030005062

HARTING

CRIMP FLANGE FOR HOOD 50P 3,0 -

0

09670029105

09670029105

HARTING

D SUB_PLASTIC METALLIZED INSERT

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

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