| PartNumber | 5100161-9 | 5100161-4 | 5100161-1 |
| Description | Hard Metric Connectors Z-PACK/C RAF 55P | Hard Metric Connectors Z-PACK/C RAF 55P | Hard Metric Connectors REC C/055P R/A B-PLANE HM |
| Manufacturer | TE Connectivity | TE Connectivity | TE Connectivity |
| Product Category | Hard Metric Connectors | Hard Metric Connectors | Hard Metric Connectors |
| RoHS | Y | Y | Y |
| Product | Receptacles | Receptacles | Receptacles |
| Number of Rows | 5 Row | - | 5 Row |
| Number of Positions | 55 Position | - | 55 Position |
| Mounting Style | PCB | - | Through Hole |
| Mounting Angle | Right | - | Right |
| Series | Z-Pack HM | Z-Pack HM | Z-Pack HM |
| Packaging | Tube | Tube | Tube |
| Brand | TE Connectivity / AMP | TE Connectivity / AMP | TE Connectivity |
| Product Type | Hard Metric Connectors | Hard Metric Connectors | Hard Metric Connectors |
| Factory Pack Quantity | 22 | 22 | 22 |
| Subcategory | Backplane Connectors | Backplane Connectors | Backplane Connectors |
| Tradename | Z-Pack | Z-Pack | Z-Pack |
| Part # Aliases | 5100161-9 | 5100161-4 | 5100161-1 |
| Unit Weight | 0.180850 oz | - | - |
| Termination Style | - | - | Press Fit |
| Contact Plating | - | - | Gold |
| Housing Material | - | - | Polybutylene Terephthalate (PBT) |
| Contact Material | - | - | Phosphor Bronze |
| Pitch | - | - | 2 mm |