| PartNumber | HDWM-18-55-G-D-300-SM | HDWM-18-01-T-S-250-SM | HDWM-18-55-S-D-260-SM-A |
| 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 | Board to Board & Mezzanine Connectors .050" X .100" Flex Stack, High-Temp Micro Board Stacker |
| 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 | 36 Position | 18 Position | 36 Position |
| Pitch | 1.27 mm | 1.27 mm | 1.27 mm |
| Number of Rows | 2 Row | 1 Row | 2 Row |
| Termination Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Mounting Angle | Straight | Straight | Straight |
| Series | HDWM | HDWM | HDWM |
| Packaging | Tube | Tube | Tube |
| Application | Optical Polarization | Optical Polarization | Optional polarization |
| Contact Plating | Gold | Tin | 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 |
| Mounting Style | SMD | SMD | SMD |
| Maximum Operating Temperature | + 125 C | + 105 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 | 7.62 mm | 6.35 mm | 6.604 mm |
| Factory Pack Quantity | 25 | 25 | 25 |
| Subcategory | Board to Board & Mezzanine Connectors | Board to Board & Mezzanine Connectors | Board to Board & Mezzanine Connectors |
| Tradename | Flex Stack | Flex Stack | Flex Stack |
| Flammability Rating | - | - | UL 94 V-0 |