| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
3M |
CONN PLUG 50POS EDGE MNT SOLDER |
888 |
|
 |
3M |
CONN RCPT 20POS STR IDC |
0 |
|
 |
3M |
CONN RCPT 40POS STR IDC |
83 |
|
 |
3M |
CONN RCPT 26POS R/A SOLDER |
0 |
|
 |
3M |
CONN RCPT 26POS R/A SOLDER |
3258 |
|
 |
3M |
CONN RCPT 20POS PCB PRESS-FIT |
0 |
|
 |
3M |
CONN RCPT 68POS PCB PRESS-FIT |
388 |
|
 |
3M |
CONN RCPT 36POS STR IDC |
56 |
|
 |
3M |
CONN PLUG 50POS R/A SOLDER |
0 |
|
 |
3M |
CONN RCPT 14POS R/A SOLDER |
3313 |
|
 |
3M |
CONN RCPT 14POS PCB SOLDER |
252 |
|
 |
3M |
CONN RCPT 40POS R/A SOLDER |
0 |
|
 |
3M |
CONN RCPT 40POS R/A SOLDER |
0 |
|
 |
3M |
CONN PLUG 40POS STR IDC |
3008 |
|
 |
3M |
CONN RCPT 40POS R/A SOLDER |
0 |
|
 |
3M |
CONN PLUG 50POS STR IDC |
313 |
|
 |
3M |
CONN RCPT 50POS R/A SOLDER |
47 |
|
 |
3M |
CONN RCPT 68POS PCB SOLDER |
0 |
|
 |
3M |
CONN RCPT 26POS R/A SOLDER |
0 |
|
 |
3M |
CONN PLUG 50POS R/A SOLDER |
130 |
|
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.
| Type | Functional Features | Application Examples |
|---|---|---|
| Standard Centronics | 36-pin configuration, unshielded, 5A max current | Legacy inkjet/dot matrix printers |
| High-Density Centronics | 50-pin configuration, improved EMI shielding | Industrial automation systems |
| Locking Centronics | Threaded screws for vibration resistance | Medical imaging equipment |
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.
| Parameter | Value/Range | Importance |
|---|---|---|
| Pin Count | 24-50 pins | Determines data transmission capacity |
| Current Rating | 1-10A per pin | Defines power handling capability |
| Contact Resistance | 10m | Ensures signal integrity |
| Dielectric Strength | 1000VAC rms | Prevents electrical breakdown |
| Operating Temperature | -40 C to +85 C | Guarantees performance stability |
Major industries include: - Office equipment (printers, scanners) - Industrial automation (CNC machines, PLCs) - Medical devices (diagnostic equipment) - Legacy military systems - Test & measurement instruments
| Manufacturer | Representative Products |
|---|---|
| Amphenol | Centronics 36-8051 Series |
| Molex | 50-87-1360 High-Density Connector |
| TE Connectivity | DuraCon Centronics 24 |
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
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