| PartNumber | M20-7842142 | M20-7842242 | M20-7842146 |
| Description | Headers & Wire Housings 21 POS SIL PC TAIL BOTTOM ENTRY SOCKET | Headers & Wire Housings 22P SIL PC TAIL SKT BTM ENT SEL GLD+TIN | Headers & Wire Housings 21P SIL PC TAIL SKT BOTTOM ENTRY TIN |
| Manufacturer | Harwin | Harwin | Harwin |
| Product Category | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Product | Headers | Headers | Headers |
| Type | Socket Assembly | Socket Assembly | Socket Assembly |
| Number of Positions | 21 Position | 22 Position | 21 Position |
| Pitch | 2.54 mm | 2.54 mm | 2.54 mm |
| Number of Rows | 1 Row | 1 Row | 1 Row |
| Series | M20 | M20 | M20 |
| Brand | Harwin | Harwin | Harwin |
| Product Type | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Subcategory | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Unit Weight | 0.046809 oz | 0.049031 oz | 0.047408 oz |
| RoHS | - | Y | Y |
| Factory Pack Quantity | - | 10 | 10 |