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| PartNumber | 646478-1 | 646478-4 | 646478-2 |
| Description | Hard Metric Connectors 2MM H.M., A SHROUD 3MM | Hard Metric Connectors 2MM H.M., A SHROUD 4.3MM | Hard Metric Connectors 2MM H.M., A SHROUD 3.9MM |
| Manufacturer | TE Connectivity | TE Connectivity | TE Connectivity AMP Connectors |
| Product Category | Hard Metric Connectors | Hard Metric Connectors | Backplane Connectors - Housings |
| RoHS | Y | Y | - |
| Product | Shrouds | Shrouds | Shrouds |
| Series | Z-Pack HM | Z-Pack HM | Z-PACK |
| Brand | TE Connectivity / AMP | TE Connectivity / AMP | - |
| Product Type | Hard Metric Connectors | Hard Metric Connectors | - |
| Factory Pack Quantity | 32 | 32 | - |
| Subcategory | Backplane Connectors | Backplane Connectors | - |
| Tradename | Z-Pack | Z-Pack | Z-Pack |
| Part # Aliases | 646478-1 | 646478-4 | - |
| Color | - | - | Gray |
| Packaging | - | - | Bulk |
| Qualification | - | - | Commercial |
| Mounting Type | - | - | Through Hole |
| Features | - | - | - |
| Connector Type | - | - | Shroud for Male Pins |
| Number of Positions | - | - | 154 |
| Pitch | - | - | 0.079" (2.00mm) |
| Number of Rows | - | - | 5 Row |
| Connector Style | - | - | Hard Metric, Type A |
| Connector Usage | - | - | - |
| Housing Material | - | - | Polyester |