D-Shaped Connectors - Centronics

Image Part Number Description / PDF Quantity Rfq
FX2B-40P-1.27DSAL(71)

FX2B-40P-1.27DSAL(71)

Hirose

CONN HDR 40POS 1.27MM

0

FX2C1-52P-1.27DSA(71)

FX2C1-52P-1.27DSA(71)

Hirose

CONN HEADER VERT 52POS 1.27MM

0

FX2B-68PA-1.27DSL(71)

FX2B-68PA-1.27DSL(71)

Hirose

CONN HDR 68POS 1.27MM

18

FX2-120P-1.27SVL(71)

FX2-120P-1.27SVL(71)

Hirose

CONN PLUG 120POS SMD SOLDER

0

5175474-5

5175474-5

TE Connectivity AMP Connectors

CONN BTB HD RCPT 40POS R/A SLDR

100

5740140

5740140

Storage & Server IO (Amphenol ICC)

CONN RCPT 14POS STR SLDR CUP

14

5796055-2

5796055-2

TE Connectivity AMP Connectors

CONN RCPT 68POS R/A SOLDER

480

5787962-2

5787962-2

TE Connectivity AMP Connectors

CONN STCK RCPT 68/68P R/A SOLDER

263

10121749-002LF

10121749-002LF

Storage & Server IO (Amphenol ICC)

FIBER CHANNEL RECEP 40P SMT

0

FX2-32P-1.27SV(71)

FX2-32P-1.27SV(71)

Hirose

CONN PLUG 32POS SMD SOLDER

80

229975-1

229975-1

TE Connectivity AMP Connectors

CONN RCPT 50POS STR IDC

2488

4-5175472-0

4-5175472-0

TE Connectivity AMP Connectors

CHAMP 050 B/B PLUG H W/LEG 100P

0

FX2CA2-32P-1.27DSA(71)

FX2CA2-32P-1.27DSA(71)

Hirose

CONN HEADER VERT 32POS 1.27MM

98

10236-0210EC

10236-0210EC

3M

CONN RCPT 36POS STR IDC

94

5552791-1

5552791-1

TE Connectivity AMP Connectors

CONN RCPT 24POS R/A SOLDER

3

FX2C2-32S-1.27DSA(71)

FX2C2-32S-1.27DSA(71)

Hirose

CONN RECEPT VERT 32POS 1.27MM

0

FX2CA2-40S-1.27DSAL(71)

FX2CA2-40S-1.27DSAL(71)

Hirose

CONN RECEPT VERT 40POS 1.27MM

13

0875520807

0875520807

Woodhead - Molex

CONN BTB RCPT 80POS R/A SOLDER

0

FX2BA-52PA-1.27DSAL(71)

FX2BA-52PA-1.27DSAL(71)

Hirose

CONN HEADER VERT 52POS 1.27MM

0

5552740-1

5552740-1

TE Connectivity AMP Connectors

CONN RCPT 24POS R/A SOLDER

117

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

RFQ BOM Call Skype Email
Top