| PartNumber | HW-20-12-G-D-664-SM-A | HW-20-12-G-D-694-SM-A | HW-20-12-G-D-665-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 | 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 | 40 Position | 40 Position | 40 Position |
| Pitch | 2.54 mm | 2.54 mm | 2.54 mm |
| Number of Rows | 2 Row | 2 Row | 2 Row |
| Termination Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Mounting Angle | Straight | Straight | Straight |
| Series | HW | HW | HW |
| Packaging | Tube | Tube | Tube |
| Application | Elevated Board Stacking | 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 | UL 94 V-0 |
| Mounting Style | Mounting Peg | Mounting Peg | SMD |
| 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 | 16.8656 mm | 17.6276 mm | 16.891 mm |
| Factory Pack Quantity | 11 | 11 | 11 |
| Subcategory | Board to Board & Mezzanine Connectors | Board to Board & Mezzanine Connectors | Board to Board & Mezzanine Connectors |
| Tradename | Flex Stack | Flex Stack | Flex Stack |