D-Sub, D-Shaped Connectors - Accessories

Image Part Number Description / PDF Quantity Rfq
3-1393561-3

3-1393561-3

TE Connectivity AMP Connectors

HARDWARE CONTACT TUBE 9-15 POS

0

552763-1

552763-1

TE Connectivity AMP Connectors

CONN CHAMP CABLE CLAMP 50POS ADJ

3403

2-2308350-3

2-2308350-3

TE Connectivity AMP Connectors

CRIMP BARREL13

134

1727040084

1727040084

Woodhead - Molex

FCT DUST CAP S1 PLSTC RCPT

2056

160X10409X

160X10409X

CONEC

PLASTIC DUSTCAP FOR ALL D-SUBMI

782

RA-LT0024-102

RA-LT0024-102

Russtech Engineering

SLIDE LATCH, DSUB, SZ2

30318

09670029061

09670029061

HARTING

D SUB IP 67 SHIELDED CAP_FE_15P

21

745779-2

745779-2

TE Connectivity AMP Connectors

CONN LATCH SPRING DB9-37 2/BAG

220

RA-LT0024-106H

RA-LT0024-106H

Russtech Engineering

SLIDE LATCH, DSUB, SZ6

0

RA-LT0024-202H

RA-LT0024-202H

Russtech Engineering

SLIDE LATCH, RCVR, DSUB, SZ2

16755

AB972

AB972

ASSMANN WSW Components

JUMPER BOX DB25 MALE/DB25 FEMALE

0

09670019988

09670019988

HARTING

CABLE CLAMP KIT FOR 0435 10PCS

65

DF02HCLP02A

DF02HCLP02A

JAE Electronics

CLAMP PLATE CABLE DIA 7.0-7.5

0

025-9533-003

025-9533-003

VEAM

MICRO D/C MDM-31S CONDUCT BLK

1345

1-750877-9

1-750877-9

TE Connectivity AMP Connectors

CONN TERM COVER 100POS .050

168

1731120107

1731120107

Woodhead - Molex

FCT DUST CAP S5 PLSTC PLG W/CHAI

200

1-2308273-1

1-2308273-1

TE Connectivity AMP Connectors

QL-SET VAR A W/STP MO FOR COMBLO

107

160-000-125R002

160-000-125R002

NorComp

DUST CAP 25POS MALE W/LANYARD

0

1731120368

1731120368

Woodhead - Molex

FCT COVER PLATE S2

500

09D-100-SS

09D-100-SS

Leader Tech Inc.

STAINLESS STEEL D-SUB SOLID GASK

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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