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| PartNumber | HDWM-40-53-G-D-280-SM-A | HDWM-40-53-S-D-255-SM-P | HDWM-40-53-G-D-250 |
| Description | Board to Board & Mezzanine Connectors .050" X .100" Flex Stack, High-Temp Micro Board Stacker | .050'' BOARD SPACERS | .050'' BOARD SPACERS |
| Manufacturer | Samtec | - | - |
| Product Category | Board to Board & Mezzanine Connectors | - | - |
| RoHS | Y | - | - |
| Product | Headers | - | - |
| Number of Positions | 80 Position | - | - |
| Pitch | 1.27 mm | - | - |
| Number of Rows | 2 Row | - | - |
| Termination Style | SMD/SMT | - | - |
| Mounting Angle | Straight | - | - |
| Series | HDWM | - | - |
| Packaging | Tube | - | - |
| Application | Optional polarization | - | - |
| Contact Plating | Gold | - | - |
| Housing Material | Liquid Crystal Polymer (LCP) | - | - |
| Brand | Samtec | - | - |
| Contact Material | Phosphor Bronze | - | - |
| Flammability Rating | UL 94 V-0 | - | - |
| Mounting Style | SMD | - | - |
| Maximum Operating Temperature | + 125 C | - | - |
| Minimum Operating Temperature | - 55 C | - | - |
| Product Type | Board to Board & Mezzanine Connectors | - | - |
| Stack Height | 7.112 mm | - | - |
| Factory Pack Quantity | 11 | - | - |
| Subcategory | Board to Board & Mezzanine Connectors | - | - |
| Tradename | Flex Stack | - | - |