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

Image Part Number Description / PDF Quantity Rfq
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

XM4Z-0021

XM4Z-0021

Omron Electronics Components

CONN DSUB ANCHOR

0

1-5206943-6

1-5206943-6

TE Connectivity AMP Connectors

CONN JACKSCREW #4-40 .415 LONG

0

863001LF

863001LF

Storage & Server IO (Amphenol ICC)

DSUB FEMALE SCREW LOCK

0

1731121175

1731121175

Woodhead - Molex

FCT SCREW M3 10.2 TIN

0

D20419-102

D20419-102

VEAM

DSUB MALE SCREW LOCK

0

206514-4

206514-4

TE Connectivity AMP Connectors

CONN D-SUB LOCKING POST ASSEM

0

1731121043

1731121043

Woodhead - Molex

FCT THMB SCREW 4-40UNC 55.6 M3 W

0

0709821008

0709821008

Woodhead - Molex

JACKPOST FOR LFH

0

748271-1

748271-1

TE Connectivity AMP Connectors

CONN SCREW LOCKS FMALE KIT 4-40

0

C115419-1000E

C115419-1000E

C&K

CONNECTOR

0

60010009019

60010009019

HARTING

SCREW (68P SCSI CABLE ASSEMBLY)

0

D20418-146

D20418-146

VEAM

DSUB FEMALE SCREW LOCK ZINC

0

552690-1

552690-1

TE Connectivity AMP Connectors

KIT HDW VT MT SL/J-HOOK

0

D20418-77

D20418-77

VEAM

DSUB FEMALE SCREW LOCK S/S

0

1731121181

1731121181

Woodhead - Molex

FCT SCREW SET 4-40/4-40 12.2 TIN

0

D20419-97

D20419-97

VEAM

DSUB MALE SCREW LOCK

0

747971-3

747971-3

TE Connectivity AMP Connectors

CONN D-SUB (2)MOUNT SCREW #4-40

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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