D-Sub, D-Shaped Connectors - Accessories

Image Part Number Description / PDF Quantity Rfq
160X10199X

160X10199X

CONEC

CONN DSUB SLIDELOCK W/BOLT 50POS

0

177728-2

177728-2

TE Connectivity AMP Connectors

CONN GUIDE SOCKET FOR DOCKING

0

1-749108-0

1-749108-0

TE Connectivity AMP Connectors

CONN TERM COVER 26POS 30-28AWG

0

DE24657-16

DE24657-16

VEAM

DSUB DE DEEP STR CLAMP 50U G

10

DA-L(60)

DA-L(60)

Hirose

SPRING LOCK FOR D-SUB

0

1201000004

1201000004

Woodhead - Molex

CONN D-SUB 9PIN ATTCH VERT/H

0

1731120365

1731120365

Woodhead - Molex

FCT LOCKPLATE S1-S4 HOOD SIDE

198

09670150612

09670150612

HARTING

D SUB MA 15 POLE ANTIPCATIC PLAP

0

L17D4J25701

L17D4J25701

Storage & Server IO (Amphenol ICC)

D SUB ACCESSORY

0

L17D4K63037

L17D4K63037

Storage & Server IO (Amphenol ICC)

METAL D SUB DUST COVER

0

L17D4K63050

L17D4K63050

Storage & Server IO (Amphenol ICC)

METAL D SUB DUST COVER

0

16-001160

16-001160

CONEC

CAP 15POS STD FOR MALE W/LANYARD

0

CAP-WD2CSPA1

CAP-WD2CSPA1

LTW (Amphenol LTW)

WATERPROOF CAP FOR D-SUB PANEL

0

L17D53018EX

L17D53018EX

Storage & Server IO (Amphenol ICC)

D SUB ACCESSORY

0

1589284-2

1589284-2

TE Connectivity Aerospace Defense and Marine

331-0010-02 = HARDWARE

0

D20418-J3F

D20418-J3F

JAE Electronics

DSUB SCREW LOCK

0

1731120640

1731120640

Woodhead - Molex

FCT CRIMPING FLANGE

0

L17D20418M3EM

L17D20418M3EM

Storage & Server IO (Amphenol ICC)

DSUB F SCREW LOCK ASSBLY

0

L17D4K63051

L17D4K63051

Storage & Server IO (Amphenol ICC)

METAL D SUB DUST COVER

867

70518CLF

70518CLF

Storage & Server IO (Amphenol ICC)

DUST CAP STD FOR 9POS M

2772

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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