D-Sub, D-Shaped Connectors - Accessories

Image Part Number Description / PDF Quantity Rfq
5552567-3

5552567-3

TE Connectivity AMP Connectors

KIT HARDWARE ASSY BL PM LONG

0

165X17009X

165X17009X

CONEC

9POS M SCREEN CAP C/W 4-40 J.S

477

1731121658

1731121658

Woodhead - Molex

FCT HOOD

500

61030000057

61030000057

HARTING

INDUCOM CRIMP FERRULE 110-110MM

33

025-9533-000

025-9533-000

VEAM

DUST CAP FOR MDM-31S ANTISTATIC

3008

2-2308350-8

2-2308350-8

TE Connectivity AMP Connectors

CRIMP BARREL18

57

160-000-225R000

160-000-225R000

NorComp

DUST COVER FOR FEMALE DSUB 25POS

1964

1731120066

1731120066

Woodhead - Molex

FCT LOCKING HOOD

2630

DX-50S-DC2(50)

DX-50S-DC2(50)

Hirose

DUST COVER

0

165X14739X

165X14739X

CONEC

CONN CAP DB25 WR SOCKET W/FLANGE

0

CF50S

CF50S

NorComp

COVER FLANGE 50POS FEMALE

0

2-747580-1

2-747580-1

TE Connectivity AMP Connectors

CONN FERRULE STEPPED DB37/DB50

0

DA24658

DA24658

VEAM

DSUB DA DEEP STR B/S CAD

686

DE-60-20BA

DE-60-20BA

VEAM

DSUB 9POS PIN DUST CAP

2566

160-020-115R000

160-020-115R000

NorComp

DUST COVER SHIELD D-SUB15 MALE

713

RA-LT0024-205

RA-LT0024-205

Russtech Engineering

SLIDE LATCH, RCVR, DSUB, SZ5

1529

1-2308298-4

1-2308298-4

TE Connectivity AMP Connectors

QL-SET FOR VAR. E LATCH PIN WITH

100

2-2308348-0

2-2308348-0

TE Connectivity AMP Connectors

CRIMP FLANGE 10 LARGE

100

16-002190E

16-002190E

CONEC

LOCKING KIT

7825

160-000-209R000

160-000-209R000

NorComp

DUST COVER FOR FEMALE DSUB 9POS

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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