D-Sub, D-Shaped Connectors - Accessories

Image Part Number Description / PDF Quantity Rfq
025-9536-000

025-9536-000

VEAM

MDM 51 PIN D/C

3497

61030000048

61030000048

HARTING

INDUCOM CRIMP FERRULE 6,5 - 7,5M

485

DE24657

DE24657

VEAM

DSUB DE DEEP STR CLAMP CAD

6161

1-552298-1

1-552298-1

TE Connectivity AMP Connectors

STRAIN RELIEF 24 POS BLACK

0

2-747579-7

2-747579-7

TE Connectivity AMP Connectors

CONN FERRULE STRAIGHT DB9/15/25

559

749108-4

749108-4

TE Connectivity AMP Connectors

50 50SR CBL CONN TERM COVER

0

3448-8D15A

3448-8D15A

3M

STRAIN RELIEF 15 POS

627

745508-2

745508-2

TE Connectivity AMP Connectors

CONN FERRULE SPLIT-RING DB9

10620

3448-8D50

3448-8D50

3M

STRAIN RELIEF 50 POS

120

1731120061

1731120061

Woodhead - Molex

FCT DUST CAP S2 MTL PLG

140

1887086

1887086

Phoenix Contact

CONN PROTECTIVE COVER DB-9POS

7

1731120105

1731120105

Woodhead - Molex

FCT DUST CAP S3 PLSTC PLG W/CHAI

182

726181103

726181103

Würth Elektronik Midcom

DUST COVER 15POS D-SUB MALE

5

SG175015DS

SG175015DS

Leader Tech Inc.

D-SUB CONNECTOR SHIELD GASKETS,

0

DA-60-20

DA-60-20

VEAM

DSUB DUSTCAP DA PIN

667

1731120112

1731120112

Woodhead - Molex

FCT DUST CAP S5 PLSTC RCPT W/CHA

200

1727040085

1727040085

Woodhead - Molex

FCT DUST CAP S2 PLSTC PLG

195

160X10709X

160X10709X

CONEC

CONN DSUB SLIDELOCK W/BOLT 25POS

21

967-025-CAP

967-025-CAP

NorComp

IP67 25 POS CONNECTOR COVER

0

SG293037DS

SG293037DS

Leader Tech Inc.

D-SUB CONNECTOR SHIELD GASKETS,

534

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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