| PartNumber | 50-57-9421 | 50-57-9422 | 50-57-9420 |
| Description | Headers & Wire Housings SL 21 CKT CRIMP HOUS | Headers & Wire Housings 2.54MM Crimp House 22 CKT | Headers & Wire Housings 20 CKT CRIMP HOUSING |
| Manufacturer | Molex | Molex | - |
| Product Category | Headers & Wire Housings | Headers & Wire Housings | - |
| RoHS | Y | Y | - |
| Product | Wire Housings | Wire Housings | - |
| Number of Positions | 21 Position | 22 Position | - |
| Pitch | 2.54 mm | 2.54 mm | - |
| Number of Rows | 1 Row | 1 Row | - |
| Mounting Style | - | - | - |
| Termination Style | - | - | - |
| Mounting Angle | - | - | - |
| Contact Gender | - | - | - |
| Contact Plating | - | - | - |
| Series | 70066 | 70066 | - |
| Tradename | SL | SL | - |
| Packaging | Bulk | Bulk | - |
| Application | Signal, Wire-to-Board | Signal, Wire-to-Board | - |
| Current Rating | 3 A | 3 A | - |
| Housing Material | Polyester | Polyester | - |
| Voltage Rating | 250 V | 250 V | - |
| Brand | Molex | Molex | - |
| Contact Material | - | - | - |
| Flammability Rating | UL 94 V-0 | UL 94 V-0 | - |
| Row Spacing | - | - | - |
| Housing Gender | Female | Female | - |
| Maximum Operating Temperature | + 105 C | + 105 C | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Product Type | Headers & Wire Housings | Headers & Wire Housings | - |
| Factory Pack Quantity | 500 | 500 | - |
| Subcategory | Headers & Wire Housings | Headers & Wire Housings | - |
| Part # Aliases | 0050579421 | 0050579422 | - |
| Unit Weight | 0.059225 oz | 0.061835 oz | - |