D-Sub, D-Shaped Connectors - Accessories

Image Part Number Description / PDF Quantity Rfq
86303427LF

86303427LF

Storage & Server IO (Amphenol ICC)

86303427-M LL NEW DSGN 9-37P

0

1731090644

1731090644

Woodhead - Molex

FCT DSUB

0

1731120641

1731120641

Woodhead - Molex

FCT CRIMPING FLANGE

0

1731120565

1731120565

Woodhead - Molex

FCT COVER PLATE S4

200

L17D4K63137

L17D4K63137

Storage & Server IO (Amphenol ICC)

METAL D SUB DUST COVER

0

1721487-14 REV Y

1721487-14 REV Y

VEAM

DSUB MALE SCREW LOCK

0

DH-17-CMB(6.6)(01)

DH-17-CMB(6.6)(01)

Hirose

CABLE CLAMP FOR 6.6MM CABLE

0

CAP-DD2MDMA1

CAP-DD2MDMA1

LTW (Amphenol LTW)

DUST CAP FOR D-SUB KSS HR-15M

0

09670019964

09670019964

HARTING

DSUB LOCKING DEVICES FOR HOODS

0

165X17159X

165X17159X

CONEC

9POS F WAT.RES SCREEN CAP M3JS

0

70521BLF

70521BLF

Storage & Server IO (Amphenol ICC)

DUST CAP BLK STD 37POS M

0

229910-4

229910-4

TE Connectivity AMP Connectors

CLAMP, CABLE CHAMP PACKAGING

0

09670009939

09670009939

HARTING

DSUB ISP 50P NUT-M3 H8,5

0

253-0367-006

253-0367-006

VEAM

DSUB STANDOFF STEEL

0

015-9516-000

015-9516-000

VEAM

BRKT MTG 90DEG MDB1-9THRU37

0

248-2800-000

248-2800-000

VEAM

RP SHELL BKAC/D/E 3 RECPT

20

D130344-1

D130344-1

VEAM

DSUB CRIMP REC 75 OHM 15U

602

D20419-120

D20419-120

VEAM

DSUB MALE SCREW LOCK ZINC X2

690

09670009989

09670009989

HARTING

DSUB ACC.I.BODY 25P NUT 4-40 H7.

0

165X16859X

165X16859X

CONEC

9POS F SCREEN CAP C/W M3 J.S

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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