| PartNumber | 2-640621-0 | 2-640601-4 | 2-640642-0 |
| Description | Headers & Wire Housings 20P MTA100 CONN ASSY F/T NATL | Headers & Wire Housings 24P MTA156 CONN ASSY 22AWG RED | Headers & Wire Housings 20P COVER F/T |
| Manufacturer | TE Connectivity | TE Connectivity | TE Connectivity |
| Product Category | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| RoHS | N | N | Y |
| Product | Wire Housings | Wire Housings | Accessories |
| Type | Receptacle Assembly | Receptacle Assembly | - |
| Number of Positions | 20 Position | 24 Position | 20 Position |
| Pitch | 2.54 mm | 3.96 mm | 2.54 mm |
| Mounting Style | Free Hanging | Free Hanging | - |
| Termination Style | IDC | IDC | - |
| Contact Gender | Socket (Female) | Socket (Female) | - |
| Contact Plating | Tin | Tin | - |
| Series | MTA-100 | MTA-156 | MTA-100 |
| Tradename | MTA | - | MTA |
| Packaging | Bulk | - | - |
| Housing Material | Nylon | Nylon | Polyester |
| Voltage Rating | 250 VAC | 600 VAC | - |
| Brand | TE Connectivity / AMP | TE Connectivity / AMP | TE Connectivity / AMP |
| Contact Material | Copper Alloy | Copper Alloy | - |
| Product Type | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Factory Pack Quantity | 250 | 100 | 1 |
| Subcategory | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Wire Gauge | 24 | 22 | - |
| Part # Aliases | 2-640621-0 | 2-640601-4 | 2-640642-0 |
| Current Rating | - | 7 A | - |
| Latching Type | - | Locking Ramp | - |
| Number of Rows | - | - | - |
| Mounting Angle | - | - | - |
| Mating Post Length | - | - | - |
| Termination Post Length | - | - | - |
| Accessory Type | - | - | Dust Cover |
| Application | - | - | - |
| Contact Type | - | - | - |
| Row Spacing | - | - | - |