D-Sub, D-Shaped Connectors - Accessories

Image Part Number Description / PDF Quantity Rfq
165X17119X

165X17119X

CONEC

15POS F WAT.RES SCREEN CAP JS

0

1731121338

1731121338

Woodhead - Molex

FCT ACCESSORY

0

1-553035-9

1-553035-9

TE Connectivity AMP Connectors

CONN CHAMP SHIELD RCPT 24POS

0

217-0674-081

217-0674-081

VEAM

DSUB NUT LOCKING

0

2-1393561-5

2-1393561-5

TE Connectivity Raychem Cable Protection

D-SUB ACCS

0

165X17289X

165X17289X

CONEC

37POS M WAT.RES SCREENCAP M3JS

0

L17D204182LM3E

L17D204182LM3E

Storage & Server IO (Amphenol ICC)

DSUB F SCREW LOCK ASSBLY

0

09670370614

09670370614

HARTING

D SUB MA 37 POLE METALLIZED PLAP

0

1589335-3

1589335-3

TE Connectivity Aerospace Defense and Marine

335-0004-03 = HARDWARE

0

L17D4J38001

L17D4J38001

Storage & Server IO (Amphenol ICC)

D SUB ACCESSORY

0

1731120341

1731120341

Woodhead - Molex

FCT STRAIN RELIEF CLAMP

0

1731120334

1731120334

Woodhead - Molex

FCT CRIMPING FLANGE

0

980-2000-440

980-2000-440

VEAM

DB-60-20BA PIN BLACK ANTIS D/C

895

1731120579

1731120579

Woodhead - Molex

D-SUB PLASTIC DUST CAPS

0

61030005166

61030005166

HARTING

CRIMP FLANGE FOR HOOD 50P 5,5 -

0

D20419-212

D20419-212

VEAM

DSUB MALE SCREW LOCK ROHS

2698

1731120425

1731120425

Woodhead - Molex

FCT FRONT BODY D-SUB RCPT 6 SLOT

0

L17D4K63125

L17D4K63125

Storage & Server IO (Amphenol ICC)

METAL D SUB DUST COVER

0

CWN-290-37-8901

CWN-290-37-8901

CW Industries

CONNECTR ACCESSORY EMI/RFI DB37

0

09670370712

09670370712

HARTING

D SUB FE 37 POLE ANTIPCATIC PLAP

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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