D-Sub, D-Shaped Connectors - Accessories

Image Part Number Description / PDF Quantity Rfq
0511171605

0511171605

Woodhead - Molex

CONN RETAINER FOR 16POS HOUSING

12290

3-1393561-9

3-1393561-9

TE Connectivity AMP Connectors

HARDWARE CONTACT TUBE 25-37 POS

0

160X10179X

160X10179X

CONEC

CONN DSUB SLIDELOCK W/BOLT 25POS

39

09670150613

09670150613

HARTING

D SUB MA 15 POLE PLASTIC DUPC CA

300

799-101980

799-101980

CONEC

37 POS SPRING LATCH D-SUB

69

7-745129-0

7-745129-0

TE Connectivity AMP Connectors

CONN FERRULE CRIMP DB9,15,50

4

1731120114

1731120114

Woodhead - Molex

FCT DUST CAP S2 SHLD PLSTC PLG

200

L17D4K63038

L17D4K63038

Storage & Server IO (Amphenol ICC)

METAL D SUB DUST COVER

0

16-001020

16-001020

CONEC

CAP 25POS STD FOR FML W/LANYARD

0

35783

35783

Tronex (Menda/EasyBraid/Tronex)

COVER D-SUB 25-F COND (1000PCS)

1

DE44994

DE44994

VEAM

CONN BACKSHELL DB9 METAL ROUND

351

61030000069

61030000069

HARTING

CRIMP FLNG - HOOD 9-37P 70-80MM

0

DC512221

DC512221

VEAM

DSUB SLIDING LOCK RETAIN SIZE37

710

L17D4K63010

L17D4K63010

Storage & Server IO (Amphenol ICC)

D-SUB 9POS MALE DUST COVER

11868

208101-2

208101-2

TE Connectivity AMP Connectors

CONN LATCHBLOCK FRONT DB9-37

1500

DF02HCLP10A

DF02HCLP10A

JAE Electronics

CLAMP PLATE CABLE DIA 8.5-9.0

0

7-745129-1

7-745129-1

TE Connectivity AMP Connectors

CONN FERRULE INNER CRIMP DB15-37

269

61030000072

61030000072

HARTING

CRIMP FLANGE FOR HOOD 9-37P 9,0-

0

1731121110

1731121110

Woodhead - Molex

FCT MTL BRACKET

480

2-552496-1

2-552496-1

TE Connectivity AMP Connectors

90 DEG COVER KIT-64 POS BLK

228

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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