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| PartNumber | 55510-040TRLF | 55510-042 | 55510-040LF |
| Description | Headers & Wire Housings 4.5mm,Top Ent,SMT Vert,Dbl Rw,40P.05um | Headers & Wire Housings 4.5mm, Top Entry,SMT Vert,Dbl Rw,42P.05um | Headers & Wire Housings LPVCC 4.5 T.E SMT |
| Manufacturer | FCI / Amphenol | FCI / Amphenol | Amphenol FCI |
| Product Category | Headers & Wire Housings | Headers & Wire Housings | Rectangular Connectors - Headers, Receptacles, Female Sockets |
| RoHS | Y | N | - |
| Number of Positions | 40 Position | - | 40 |
| Pitch | 2 mm | - | 0.079" (2.00mm) |
| Tradename | Minitek | Minitek | - |
| Packaging | Reel | Tube | Tube |
| Brand | Amphenol FCI | Amphenol FCI | - |
| Product Type | Headers & Wire Housings | Headers & Wire Housings | - |
| Factory Pack Quantity | 750 | 14 | - |
| Subcategory | Headers & Wire Housings | Headers & Wire Housings | - |
| Part # Aliases | 55510040TRLF | - | - |
| Color | - | - | Black |
| Series | - | - | MinitekR MezzSelect, Basics+ |
| Termination | - | - | Solder |
| Mounting Type | - | - | Surface Mount |
| Features | - | - | - |
| Connector Type | - | - | Receptacle |
| Contact Finish | - | - | Gold |
| Contact Finish Thickness | - | - | 2μin (0.05μm) |
| Number of Positions Loaded | - | - | All |
| Number of Rows | - | - | 2 |
| Contact Type | - | - | Female Socket |
| Row Spacing | - | - | 0.079" (2.00mm) |
| Fastening Type | - | - | - |