D-Sub, D-Shaped Connectors - Accessories

Image Part Number Description / PDF Quantity Rfq
015-9516-003

015-9516-003

VEAM

MICRO BRACKET 90DEG MDM-51

0

980-0001-585

980-0001-585

VEAM

RP

0

015-0339-000

015-0339-000

VEAM

DSUB DA PLASTIC BRACKET D*/D*M

1335

217-2018-901

217-2018-901

VEAM

D-SUB CLINCH NUT M3

0

230-9506-000

230-9506-000

VEAM

POST POLAR CENTI-LOCK STRIP

0

040-8504-001

040-8504-001

VEAM

MDSM 15 POSITION BOOT

0

015-0339-006

015-0339-006

VEAM

DSUB DA PLAST BRKT #22 D*/D*M

0

DB-60-20PG

DB-60-20PG

VEAM

DSUB DUSTCAP DB PIN

0

DD20964-19

DD20964-19

VEAM

D-SUB DD ROUND C/C BRASS 50U

0

DB19678-15

DB19678-15

VEAM

DSUB DB METAL POTTING SHELL

0

025-9502-000

025-9502-000

VEAM

MICRO DUST CAP

0

D121073-41

D121073-41

VEAM

DSUB SCREW LOCKS W/THRD INS

0

GDC111647-27

GDC111647-27

VEAM

DSUB GROMMET

0

DA19678-6

DA19678-6

VEAM

DSUB DA POTTING SHL METAL

0

237-9519-000

237-9519-000

VEAM

MICRO K/L/LH 9-51 RET/RG X2

0

217-0732-100

217-0732-100

VEAM

BFR 28 HEX NUT A71

0

DB19678-171

DB19678-171

VEAM

DSUB DB METAL POTTING SHELL

0

217-2017-002

217-2017-002

VEAM

D-SUB RIV-NUT M3 TIN

0

253-0211-000

253-0211-000

VEAM

DSUB D*M SPACER

0

253-0343-008

253-0343-008

VEAM

DSUB SPACER .187 DIA X .250 L

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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