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

Image Part Number Description / PDF Quantity Rfq
1731121102

1731121102

Woodhead - Molex

D-SUB SLIDE LOCK POSTS

0

1731121111

1731121111

Woodhead - Molex

FCT SCREW SET M3/4-40 10.7 TIN P

0

1731120992

1731120992

Woodhead - Molex

FCT SCREW SET 4-40 UNC 10.6 ZINC

0

1731120102

1731120102

Woodhead - Molex

FCT SCREW 4-40 UNC 14.2 ZINC PLA

0

1731120612

1731120612

Woodhead - Molex

FCT SCREW SET M3/M3 10.3 TIN PLA

0

1731120712

1731120712

Woodhead - Molex

FCT SCREW SET 4-40/4-40 11.0 ZIN

0

1731120291

1731120291

Woodhead - Molex

FCT SCREW 4-40 UNC 12.7 TIN PLAT

0

1731121112

1731121112

Woodhead - Molex

FCT SCREW 4-40/4-40 9.55 TIN PLA

0

1731120302

1731120302

Woodhead - Molex

FCT SCREW 4-40/4-40 10.7 ZINC PL

0

1731120245

1731120245

Woodhead - Molex

FCT SCREW SET 4-40 UNC 11.3 ZINC

0

1731121159

1731121159

Woodhead - Molex

FCT SCREW SET

0

1731121262

1731121262

Woodhead - Molex

FCT SCREW SET

0

1731120560

1731120560

Woodhead - Molex

FCT SCREW M3/M3 12.7 NICKEL PLAT

0

1731120617

1731120617

Woodhead - Molex

FCT SCREW SET 4-40/4-40 12.7 TIN

0

1731121160

1731121160

Woodhead - Molex

FCT SCREW SET

0

1731120649

1731120649

Woodhead - Molex

FCT SCREW M3/M3 16.7 TIN PLATED

0

1731121261

1731121261

Woodhead - Molex

FCT SCREW SET

0

1731121158

1731121158

Woodhead - Molex

FCT SCREW SET

0

1731121096

1731121096

Woodhead - Molex

FCT SCREW 4-40/4-40 11.31 ZINC P

0

0714330011

0714330011

Woodhead - Molex

VHDCI FEMALE SCREWLOCK

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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