D-Sub, D-Shaped Connectors - Accessories - Jackscrews

Image Part Number Description / PDF Quantity Rfq
D20420-29

D20420-29

VEAM

DSUB MALE SCREW LOCK

0

250-9510-003

250-9510-003

VEAM

MICRO SCREW LOCKING

0

320-9519-000

320-9519-000

VEAM

MICRO JACKS KIT MJSV

0

D20420-35

D20420-35

VEAM

DSUB MALE SCREW LOCK

0

D20420-160

D20420-160

VEAM

DSUB MALE SCREW LOCK ROHS

0

DC115386-82

DC115386-82

VEAM

DSUB DC J/S DIE CAST

0

D20420-131

D20420-131

VEAM

DSUB MALE SCREW LOCK X 2

0

D120190-184-V

D120190-184-V

VEAM

DSUB FEMALE SCREW LOCK X2

0

D20418-36

D20418-36

VEAM

DSUB FEMALE SCREW LOCK

0

320-9508-024

320-9508-024

VEAM

MICRO M13 ALLEN HD JACKS HP

0

D20420-164

D20420-164

VEAM

DSUB MALE SCREW LOCK ROHS DD

249

D20418-148

D20418-148

VEAM

DSUB FEMALE SCREW LOCK ZINC X2

0

250-8550-021

250-8550-021

VEAM

MDSM Z34 JACKPOST

0

D20420-10

D20420-10

VEAM

DSUB MALE SCREW LOCK

0

D20419-38

D20419-38

VEAM

DSUB SCW LOCK MALE NM ST/ST

0

980-0000-387

980-0000-387

VEAM

DSUB SCREW AN515C4-3

0

D20419-24

D20419-24

VEAM

DSUB MALE SCREW LOCK

0

D20420-166

D20420-166

VEAM

DSUB MALE SCREW LOCK ROHS

0

D20419-102

D20419-102

VEAM

DSUB MALE SCREW LOCK

0

D20418-146

D20418-146

VEAM

DSUB FEMALE SCREW LOCK ZINC

0

D-Sub, D-Shaped Connectors - Accessories - Jackscrews

1. Overview

D-Sub (D-Subminiature) connectors are D-shaped metallic shell electrical connectors widely used in computing, industrial equipment, and communication systems. They feature polarized designs to prevent misalignment and provide stable signal transmission. Jackscrews are threaded fastening components used to secure D-Sub connectors to mating interfaces, ensuring mechanical stability and electrical continuity. These components remain critical in legacy systems and specialized applications despite the rise of modern alternatives like USB and HDMI.

2. Main Types & Functional Classification

TypeFunctional FeaturesApplication Examples
Standard D-Sub9-104 contacts, 5:2 shell ratio, screw lockingRS-232 serial ports, industrial controls
High-Density D-SubDouble-row contacts, 37-104 pinsHigh-speed data acquisition systems
Micro D-SubMiniaturized design (13-52 contacts)Aerospace sensors, medical imaging
Threaded Jackscrews6-48 UNC threads, captive or free-floatingSecure panel mounting in vibration environments
Quick-Lock JackscrewsNon-threaded latching mechanismsRapid maintenance scenarios in broadcast equipment

3. Structure & Composition

D-Sub connectors consist of a conductive metal shell (aluminum or steel), multiple signal contacts (phosphor bronze with gold plating), and dielectric insulators (thermoplastic or ceramic). Jackscrews integrate threaded shafts (stainless steel or brass), washer systems, and mounting flanges. Connector shells often feature EMI shielding coatings, while jackscrews may include knurled grips for manual tightening.

4. Key Technical Specifications

ParameterImportance
Contact Current Rating (1-13A)Determines power handling capability
Voltage Withstand (100-1000V)Ensures insulation reliability
Contact Resistance (<10m )Impacts signal integrity
Temperature Range (-55 C to +125 C)Defines operational environment limits
Jackscrew Torque (3-15 in-lb)Prevents over-tightening damage
Material Corrosion ResistanceExtends service life in harsh conditions

5. Application Fields

Primary industries include industrial automation (programmable logic controllers), avionics (flight control panels), medical equipment (diagnostic imaging machines), and broadcast systems (video routers). Legacy computer systems (CNC machines) and military communications equipment remain significant deployment areas.

6. Leading Manufacturers & Products

ManufacturerRepresentative Products
TE ConnectivityDEUTSCH D-Sub series, ARINC 404 jackscrews
Amphenol97 Series high-vibration connectors, captive jackscrew kits
MolexMicroChange D-Sub connectors, quick-lock assemblies
SamtecHigh-speed D-Sub solutions, gold-plated jackscrews

7. Selection Recommendations

Key considerations: contact density requirements, environmental conditions (temperature/vibration), EMI shielding needs, and compliance with standards (MIL-DTL-24308, IEC 60087). For high-vibration environments, specify jackscrews with anti-backout features. Aerospace applications require lightweight composite shells, while industrial settings prioritize corrosion-resistant platings.

8. Industry Trends

Current developments focus on hybrid connectors integrating D-Sub with fiber optics, nanocoatings for extreme environments, and miniaturized designs maintaining backward compatibility. The market is shifting toward high-speed differential signaling capabilities (up to 10Gbps) while maintaining legacy form factors for equipment retrofits.

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