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| Part Number | AR21-4237I | AR21-3688I | AR21-4428I |
| Manufacturer | Allied Components International | Allied Components International | Allied Components International |
| Series | - | - | - |
| Packaging | Tray | Tray | Tray |
| Product Status | Active | Active | Active |
| Connector Type | RJ45 | RJ45 | RJ45 |
| Number of Ports | 2 | 2 | 2 |
| Number of Rows | 2 | 2 | 2 |
| Applications | 10/100 Base-T | 10/100/1000 Base-T, AutoMDIX | 10/100/1000 Base-T, AutoMDIX |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| Orientation | 90° Angle (Right) | 90° Angle (Right) | 90° Angle (Right) |
| Termination | Solder | Solder | Solder |
| Height Above Board | 1.059" (26.90mm) | 1.006" (25.55mm) | 0.994" (25.25mm) |
| LED Color | Green - Yellow | Green, Orange - Green, Orange | Yellow - Green |
| Number of Cores per Jack | 4 | 8 | 8 |
| Shielding | Shielded, EMI Finger | Shielded, EMI Finger | Shielded, EMI Finger |
| Features | Board Guide | Board Lock | Board Guide |
| Tab Direction | Up and Down | Up and Down | Up and Down |
| Contact Material | Copper Alloy | Phosphor Bronze | Phosphor Bronze |
| Contact Finish | Gold | Gold | Gold |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
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