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| PartNumber | 91911-31525 | 91911-31521 | 91911-31521LF |
| Description | Board to Board & Mezzanine Connectors 25P PCB MEZZ VRT PLG SMT | Board to Board & Mezzanine Connectors CONAN STR SMT HDR W/PEG | Board to Board & Mezzanine Connectors CONAN STR SMT HDR W/PEG |
| Manufacturer | Amphenol FCI | Amphenol FCI | Amphenol FCI |
| Product Category | Rectangular - Board to Board Connectors - Arrays, Edge Type, Mezzanine | Rectangular - Board to Board Connectors - Arrays, Edge Type, Mezzanine | Rectangular - Board to Board Connectors - Arrays, Edge Type, Mezzanine |
| Series | Conan, MezzSelect | Conan, MezzSelect | Conan, MezzSelect |
| Packaging | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Features | Board Guide, Solder Retention | Board Guide, Solder Retention | Board Guide, Solder Retention |
| Height Above Board | 0.147" (3.72mm) | 0.147" (3.72mm) | 0.147" (3.72mm) |
| Connector Type | Header, Center Strip Contacts | Header, Center Strip Contacts | Header, Center Strip Contacts |
| Contact Finish | Gold or Gold, GXT | Gold or Gold, GXT | Gold or Gold, GXT |
| Contact Finish Thickness | 15μin (0.38μm) | 15μin (0.38μm) | 15μin (0.38μm) |
| Number of Positions | 25 | 21 | 21 |
| Pitch | 0.039" (1.00mm) | 0.039" (1.00mm) | 0.039" (1.00mm) |
| Number of Rows | 2 | 2 | 2 |
| Mated Stacking Heights | 7mm | 7mm | 7mm |