| PartNumber | 2-643077-1 | 2-643077-0 | 2-643077-3 |
| Description | Headers & Wire Housings 21P MOLDED COVER F/T | Headers & Wire Housings STRAIN RELIEF 20P | Headers & Wire Housings 23P MOLDED COVER F/T |
| Manufacturer | TE Connectivity | TE Connectivity | TE Connectivity |
| Product Category | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| RoHS | Y | Y | Y |
| Product | Accessories | Accessories | Accessories |
| Type | - | - | - |
| Number of Positions | 21 Position | 20 Position | 23 Position |
| Pitch | 2.54 mm | 2.54 mm | 2.54 mm |
| Mounting Style | - | - | - |
| Termination Style | - | - | - |
| Mounting Angle | - | - | - |
| Contact Gender | - | - | - |
| Contact Plating | - | - | - |
| Mating Post Length | - | - | - |
| Termination Post Length | - | - | - |
| Series | MTA-100 | MTA-100 | MTA-100 |
| Tradename | MTA | MTA | MTA |
| Packaging | Bulk | Bulk | - |
| Accessory Type | Strain Relief Cover | Strain Relief Cover | Strain Relief Cover |
| Application | - | - | - |
| Contact Type | - | - | - |
| Current Rating | - | - | - |
| Housing Material | Nylon | Nylon | Nylon |
| Voltage Rating | - | - | - |
| Brand | TE Connectivity / AMP | TE Connectivity / AMP | TE Connectivity / AMP |
| Contact Material | - | - | - |
| Row Spacing | - | - | - |
| Insulation Resistance | - | - | - |
| Product Type | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Factory Pack Quantity | 500 | 250 | 1 |
| Subcategory | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Part # Aliases | 2-643077-1 | 2-643077-0 | 2-643077-3 |
| Wire Gauge | - | - | - |