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| PartNumber | 91872-620TRLF | 91872-635 | 91872-620 |
| Description | Headers & Wire Housings 536-57PF-RIB-CAGE RECEPTACLE | Board to Board & Mezzanine Connectors .050CC SMT W/HLDOWN | Board to Board & Mezzanine Connectors .0500CC SMT W/HLDOWN |
| Manufacturer | Amphenol FCI | Amphenol FCI | Amphenol FCI |
| Product Category | Miscellaneous | Rectangular - Board to Board Connectors - Headers, Receptacles, Female Sockets | Rectangular - Board to Board Connectors - Headers, Receptacles, Female Sockets |
| For Use With Related Products | - | - | - |
| Accessory Type | - | - | - |
| Series | * | Rib-Cage, MezzSelect | Rib-Cage, MezzSelect |
| Packaging | - | Tube | Tube |
| Package Case | - | - | - |
| Operating Temperature | - | - | - |
| Interface | - | - | - |
| Voltage Supply | - | - | - |
| Supplier Device Package | - | - | - |
| Memory Size | - | - | - |
| Memory Type | - | - | - |
| Speed | - | - | - |
| Format Memory | - | - | - |
| Color | - | Natural | Natural |
| Termination | - | Solder | Solder |
| Mounting Type | - | Through Hole | Through Hole |
| Features | - | Board Guide | Board Guide |
| Height Above Board | - | 0.187" (4.75mm) | 0.187" (4.75mm) |
| Connector Type | - | Receptacle | Receptacle |
| Contact Finish | - | Gold or Gold, GXT | Gold or Gold, GXT |
| Contact Finish Thickness | - | 30μin (0.76μm) | 30μin (0.76μm) |
| Number of Positions | - | 70 | 40 |
| Number of Positions Loaded | - | All | All |
| Pitch | - | 0.050" (1.27mm) | 0.050" (1.27mm) |
| Number of Rows | - | 2 | 2 |
| Row Spacing | - | 0.050" (1.27mm) | 0.050" (1.27mm) |
| Height Stacking Mating | - | - | - |