D-Shaped Connectors - Centronics

Image Part Number Description / PDF Quantity Rfq
1-5175472-1

1-5175472-1

TE Connectivity AMP Connectors

CONN BTB HD PLUG 120P R/A SOLDER

0

FX2C2-80P-1.27DSA(71)

FX2C2-80P-1.27DSA(71)

Hirose

CONN HEADER VERT 80POS 1.27MM

0

N10226-52B3PC

N10226-52B3PC

3M

CONN RCPT 26POS R/A SOLDER

0

FX2B-40PA-1.27DS(71)

FX2B-40PA-1.27DS(71)

Hirose

CONN HEADER R/A 40POS 1.27MM

0

0015921060

0015921060

Woodhead - Molex

CONN RCPT 60POS VERT SOLDER

1366

FX2C1-40P-1.27DSAL(71)

FX2C1-40P-1.27DSAL(71)

Hirose

CONN HDR 40POS 1.27MM

0

858M036C1120011

858M036C1120011

Storage & Server IO (Amphenol ICC)

CONN PLUG 36POS STR IDC

627

10226-2200PE

10226-2200PE

3M

CONN RCPT 26POS SMD SOLDER

74

FX2B-32P-1.27DSAL(71)

FX2B-32P-1.27DSAL(71)

Hirose

CONN HEADER VERT 32POS 1.27MM

15

DX30AM-100P

DX30AM-100P

Hirose

CONN MINI HD PLUG 100POS STR IDC

0

FX2C-40S-1.27DSAL(71)

FX2C-40S-1.27DSAL(71)

Hirose

CONN RECEPT 40POS 1.27MM

0

DX40M-100P

DX40M-100P

Hirose

CONN MINHD PLG 100P STR SLD EYEL

97

FI40B-2015S(50)

FI40B-2015S(50)

Hirose

CONN RCPT 15POS STR SLDR EYELET

2780

FX2-100S-1.27SVL(71)

FX2-100S-1.27SVL(71)

Hirose

CONN RCPT 100POS SMD SOLDER

0

FX2B-52P-1.27DSL(71)

FX2B-52P-1.27DSL(71)

Hirose

CONN HDR 52POS 1.27MM

0

1-5175473-0

1-5175473-0

TE Connectivity AMP Connectors

CONN BTB PLUG 100POS VERT SOLDER

0

5556622-1

5556622-1

TE Connectivity AMP Connectors

CONN RCPT 64POS VERT PRESS-FIT

109

5555149-1

5555149-1

TE Connectivity AMP Connectors

CONN RCPT 50POS R/A SOLDER

420

552173-1

552173-1

TE Connectivity AMP Connectors

CONN PLUG 50POS STR IDC

432

DX10GM-68SE(50)

DX10GM-68SE(50)

Hirose

CONN MINI HD RCPT 68P R/A SOLDER

0

D-Shaped Connectors - Centronics

1. Overview

D-Shaped connectors, named for their distinctive trapezoidal metal shield, are widely used in computing and industrial applications. The Centronics interface, a subset of D-shaped connectors, was originally developed by Centronics Data Computer Corp. for parallel printing. These connectors enable robust electrical and mechanical connections, playing a critical role in legacy systems and specialized industrial equipment despite the rise of USB and wireless technologies.

2. Main Types and Functional Classification

TypeFunctional FeaturesApplication Examples
Standard Centronics36-pin configuration, unshielded, 5A max currentLegacy inkjet/dot matrix printers
High-Density Centronics50-pin configuration, improved EMI shieldingIndustrial automation systems
Locking CentronicsThreaded screws for vibration resistanceMedical imaging equipment

3. Structure and Composition

Centronics connectors feature: - Metal shell (zinc alloy or aluminum) for EMI protection - Insulating housing (high-temperature nylon) - Contact pins (phosphor bronze with gold plating) - Screw locking mechanism (optional) The standard 36-pin design includes 20 signal pins and 16 ground pins, arranged in staggered rows to prevent misalignment.

4. Key Technical Specifications

ParameterValue/RangeImportance
Pin Count24-50 pinsDetermines data transmission capacity
Current Rating1-10A per pinDefines power handling capability
Contact Resistance 10m Ensures signal integrity
Dielectric Strength1000VAC rmsPrevents electrical breakdown
Operating Temperature-40 C to +85 CGuarantees performance stability

5. Application Fields

Major industries include: - Office equipment (printers, scanners) - Industrial automation (CNC machines, PLCs) - Medical devices (diagnostic equipment) - Legacy military systems - Test & measurement instruments

6. Leading Manufacturers and Products

ManufacturerRepresentative Products
AmphenolCentronics 36-8051 Series
Molex50-87-1360 High-Density Connector
TE ConnectivityDuraCon Centronics 24

7. Selection Guidelines

Key considerations: - Match pin count and spacing (0.05"-0.1" pitch) - Choose appropriate current rating with 20% safety margin - Select locking mechanism type (standard screws vs. quick-release) - Confirm environmental ratings (IP40 minimum for industrial) - Verify compatibility with existing cabling infrastructure

8. Industry Trends

Current trends include: - Transition to hybrid connectors supporting USB-C and Ethernet - Development of miniaturized D-sub variants (e.g., Micro-Centronics) - Increased adoption of gold-plated contacts for high-reliability applications - Phasing out in consumer electronics, but stable demand in industrial sectors - Integration with PoE (Power over Ethernet) systems for combined data/power delivery

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