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

Image Part Number Description / PDF Quantity Rfq
1731120408

1731120408

Woodhead - Molex

FCT SCREW SET M3 15 TIN PLATED

0

0830410046

0830410046

Woodhead - Molex

JACKSCREW 2-56 X 2.0 UNDIPPED

0

09670029152

09670029152

HARTING

D SUB MALE SCREW LOCK M3 WITH BE

0

C115420-0067

C115420-0067

C&K

D115420-0067-FR022

0

D20418-82

D20418-82

VEAM

DSUB FEMALE SCREW LOCK CAD X2

11290

1-829261-4

1-829261-4

TE Connectivity AMP Connectors

CONN D-SUB HD FEMALE SCREW LOCK

0

D53018-1

D53018-1

VEAM

DSUB SLIDE LOCK KIT 5PCS

0

971-RTHMBSCREWZ

971-RTHMBSCREWZ

NorComp

THUMBSCREW 4-40 FOR 971 SERIES

0

L17D2041902X

L17D2041902X

Storage & Server IO (Amphenol ICC)

DSUB M SCREW LOCK ASSBLY

0

D20420-12

D20420-12

D-SUB HARDWARE

445

M83513/05-02

M83513/05-02

VEAM

CONN JACKSCREW LP ALLEN 2-56

451

D20418-136

D20418-136

VEAM

DSUB FEMALE SCREW LOCK ZINC

0

JSX-M1055

JSX-M1055

Kycon

JACK SCREW 4-40 EX/M3 IN 5MM

960

1731120250

1731120250

Woodhead - Molex

FCT SCREW SET M3 10.2 TIN PLATED

0

09670019961

09670019961

HARTING

DSUB LONG SCREW BLACK HEAD M3

0

176152-1

176152-1

TE Connectivity AMP Connectors

SCREWLOCK KIT FOR AMPLIMITE

0

D20419-74

D20419-74

VEAM

DSUB SCWLK MALE (NM BRASS)

462

C020420-0088C

C020420-0088C

C&K

340102247B NMB

0

747941-1

747941-1

TE Connectivity AMP Connectors

JACKSCREW HEAD,ENCLSUR HDW

0

211883-1

211883-1

TE Connectivity Aerospace Defense and Marine

KIT SCREW RETAINER GOLD PLATED

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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