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| PartNumber | HW-20-08-F-S-255-SM | HW-20-08-G-D-200-083 | HW-20-08-F-D-250-SM |
| Description | Board to Board & Mezzanine Connectors .100" Flex Stack, High-Temp Flexible Board Stacker, Surface Mount | Board to Board & Mezzanine Connectors .100" Flex Stack, High-Temp Flexible Board Stacker, Surface Mount | HW - Samtec High-Temp Surface Mount Flexible Board Stacke |
| Manufacturer | Samtec | Samtec | - |
| Product Category | Board to Board & Mezzanine Connectors | Board to Board & Mezzanine Connectors | - |
| RoHS | Y | Y | - |
| Product | Headers | Headers | - |
| Number of Positions | 20 Position | 40 Position | - |
| Pitch | 2.54 mm | 2.54 mm | - |
| Number of Rows | 1 Row | 2 Row | - |
| Termination Style | SMD/SMT | Through Hole | - |
| Mounting Angle | Straight | Straight | - |
| Series | HW | HW | - |
| Packaging | Tube | Bulk | - |
| Application | Elevated Board Stacking | Elevated Board Stacking | - |
| Contact Plating | Gold | Gold | - |
| Housing Material | Liquid Crystal Polymer (LCP) | Liquid Crystal Polymer (LCP) | - |
| Brand | Samtec | Samtec | - |
| Contact Material | Phosphor Bronze | Phosphor Bronze | - |
| Flammability Rating | UL 94 V-0 | UL 94 V-0 | - |
| Mounting Style | SMD | Straight Pin | - |
| Maximum Operating Temperature | + 125 C | + 125 C | - |
| Minimum Operating Temperature | - 55 C | - 55 C | - |
| Product Type | Board to Board & Mezzanine Connectors | Board to Board & Mezzanine Connectors | - |
| Stack Height | 6.477 mm | 5.08 mm | - |
| Factory Pack Quantity | 11 | 1 | - |
| Subcategory | Board to Board & Mezzanine Connectors | Board to Board & Mezzanine Connectors | - |
| Tradename | Flex Stack | Flex Stack | - |