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

Image Part Number Description / PDF Quantity Rfq
160-000-011R032

160-000-011R032

NorComp

ASSY SCREWLOCK 4-40 FEMALE .625"

0

D20419-21JR

D20419-21JR

JAE Electronics

DSUB SCREW LOCK

0

1731121169

1731121169

Woodhead - Molex

FCT SCREW SET

0

DN0000816

DN0000816

JACKPOST 1.6MM PANEL THICKNESS

32

1731120668

1731120668

Woodhead - Molex

FCT SCREW SET 4-40/4-40 12.9 NI

0

CWN-HK-07

CWN-HK-07

CW Industries

HARDWARE MOUNTING KIT 4-40

0

D121073-19

D121073-19

VEAM

DSUB JACKPOST ASSEMBLY

2316

L17D2041921X

L17D2041921X

Storage & Server IO (Amphenol ICC)

DSUB M SCREW LOCK ASSBLY

183

1731121189

1731121189

Woodhead - Molex

FCT SCREW SET

0

5-1532137-5

5-1532137-5

TE Connectivity Aerospace Defense and Marine

CONN JACKSCREW FOR MCD/MCK GOLD

0

10124522-001LF

10124522-001LF

Storage & Server IO (Amphenol ICC)

BERGSTIK

0

C115420-0088

C115420-0088

C&K

D115420-0088-FR022

0

D20419-0

D20419-0

Vitelec / Cinch Connectivity Solutions

JACKSCREW MALE W/CLIP 4-40

0

1731121092

1731121092

Woodhead - Molex

FCT SHELL SCREW M2.6X10.9 PH-L Z

0

D20418-52

D20418-52

VEAM

DSUB SCWLK FE (NM BRASS)

550

C115419-0100C

C115419-0100C

C&K

340102265B NMB

0

M24308/25-10F

M24308/25-10F

DSUB MALE S/L P&S DD ONLY

1866

1731121164

1731121164

Woodhead - Molex

FCT SCREW SET

0

C115420-0063

C115420-0063

C&K

D115420-0063-FR022

0

C115418-1001

C115418-1001

C&K

D115418-1001-FR022

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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