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| PartNumber | HDWM-04-57-S-D-444 | HDWM-04-57-L-D-250-SM | HDWM-04-57-S-S-280-SM |
| Description | Board to Board & Mezzanine Connectors .050" X .100" Flex Stack, High-Temp Micro Board Stacker | Board to Board & Mezzanine Connectors .050" X .100" Flex Stack, High-Temp Micro Board Stacker | .050'' BOARD SPACERS |
| Manufacturer | Samtec | Samtec | - |
| Product Category | Board to Board & Mezzanine Connectors | Board to Board & Mezzanine Connectors | - |
| RoHS | Y | Y | - |
| Product | Headers | Headers | - |
| Pitch | 1.27 mm | 1.27 mm | - |
| Number of Rows | 2 Row | 2 Row | - |
| Termination Style | Through Hole | SMD/SMT | - |
| Mounting Angle | Straight | Straight | - |
| Series | HDWM | HDWM | - |
| Packaging | Bulk | - | - |
| Application | Optional polarization | Optional polarization | - |
| 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 | Straight Pin | SMD | - |
| 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 | 11.2776 mm | 6.35 mm | - |
| Factory Pack Quantity | 1 | 1 | - |
| Subcategory | Board to Board & Mezzanine Connectors | Board to Board & Mezzanine Connectors | - |
| Tradename | Flex Stack | Flex Stack | - |
| Number of Positions | - | 8 Position | - |