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HAR-MIK BELL 28M-SA M2.5 |
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HAR-MIK BELLOWS 80P M FOR WIRES |
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HAR-MIK I/O BELLOW CABLE FEMALE |
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HMIK BEL IO CABLE FREE MA |
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HAR-MIK BELL 36F-IDC 0,5-0,65 |
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HMIK SV P/S SDP FE ANG 68P WOSLK |
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HMIK SV BEL SDP MA ANG 20P |
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HAR-MIK P/S 28M-IDC 0,8-0,88 |
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CONN. W/ANGLED SOLDER PINS (M) |
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HAR-MIK BELL 68F-IDC 0,5-0,65 |
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FEMALE I.D.C. WIRE 0.5,0.65 |
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HAR-MIK BEL IO BOARD LATCH |
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HAR-MIK BELL 28F SOLDER CUP |
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HAR-MIK BELL 36M-IDC 0,5-0,65 |
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HAR-MIK BELL 50F-SA M2.5 RAPC. |
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CONN SCSI RCPT 20POS R/A SOLDER |
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CONN SCSI PLUG 50POS STR IDC |
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CONN SCSI RCPT 26POS R/A SOLDER |
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CONN SCSI RCPT 36POS R/A SOLDER |
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CONN SCSI RCPT 68POS R/A SOLDER |
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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