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| PartNumber | HW-04-09-F-D-429-SM | HW-04-09-F-S-435-SM | HW-04-09-F-D-390-SM-A |
| 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 | Board to Board & Mezzanine Connectors .100" Flex Stack, High-Temp Flexible Board Stacker, Surface Mount |
| Manufacturer | Samtec | Samtec | Samtec |
| Product Category | Board to Board & Mezzanine Connectors | Board to Board & Mezzanine Connectors | Board to Board & Mezzanine Connectors |
| RoHS | Y | Y | Y |
| Product | Headers | Headers | Headers |
| Number of Positions | 8 Position | 4 Position | 8 Position |
| Pitch | 2.54 mm | 2.54 mm | 2.54 mm |
| Number of Rows | 2 Row | 1 Row | 2 Row |
| Termination Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Mounting Angle | Straight | Straight | Straight |
| Series | HW | HW | HW |
| Packaging | Bulk | Bulk | Bulk |
| Application | Elevated Board Stacking | Elevated Board Stacking | - |
| Contact Plating | Gold | Gold | Gold |
| Housing Material | Liquid Crystal Polymer (LCP) | Liquid Crystal Polymer (LCP) | Liquid Crystal Polymer (LCP) |
| Brand | Samtec | Samtec | Samtec |
| Contact Material | Phosphor Bronze | Phosphor Bronze | Phosphor Bronze |
| Flammability Rating | UL 94 V-0 | UL 94 V-0 | - |
| Mounting Style | SMD | SMD | Mounting Peg |
| Maximum Operating Temperature | + 125 C | + 125 C | + 125 C |
| Minimum Operating Temperature | - 55 C | - 55 C | - 55 C |
| Product Type | Board to Board & Mezzanine Connectors | Board to Board & Mezzanine Connectors | Board to Board & Mezzanine Connectors |
| Stack Height | 10.8966 mm | 11.049 mm | - |
| Factory Pack Quantity | 1 | 1 | 1 |
| Subcategory | Board to Board & Mezzanine Connectors | Board to Board & Mezzanine Connectors | Board to Board & Mezzanine Connectors |
| Tradename | Flex Stack | Flex Stack | Flex Stack |