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| PartNumber | 2-640384-1 | 2-640384-0 | 2-640384-2 |
| Description | Headers & Wire Housings 21P HDR STR RND SN | Headers & Wire Housings 20P HDR STR RND SN | Headers & Wire Housings 22P HDR STR RND SN |
| Manufacturer | TE Connectivity | TE Connectivity | TE Connectivity |
| Product Category | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| RoHS | N | N | N |
| Product | Headers | Headers | Headers |
| Type | Unshrouded | Unshrouded | Pin Strip |
| Number of Positions | 21 Position | 20 Position | 22 Position |
| Pitch | 3.96 mm | 3.96 mm | 3.96 mm |
| Number of Rows | 1 Row | 1 Row | 1 Row |
| Mounting Style | - | - | Panel |
| Termination Style | Through Hole | Through Hole | Through Hole |
| Mounting Angle | Straight | Straight | Straight |
| Contact Gender | Pin (Male) | Pin (Male) | Pin (Male) |
| Contact Plating | Tin | Tin | Tin |
| Termination Post Length | 3.18 mm | 3.18 mm | - |
| Series | MTA-156 | MTA-156 | MTA-156 |
| Tradename | MTA | MTA | - |
| Application | Wire-to-Board | Wire-to-Board | - |
| Current Rating | 7 A | 7 A | 7 A |
| Housing Material | Polyester | Polyester | Polyester |
| Voltage Rating | 600 V | 600 V | 600 VAC |
| Brand | TE Connectivity / AMP | TE Connectivity / AMP | TE Connectivity / AMP |
| Contact Material | Copper Alloy | Copper Alloy | Copper Alloy |
| Flammability Rating | UL 94 V-0 | UL 94 V-0 | - |
| Product Type | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Factory Pack Quantity | 250 | 500 | 1 |
| Subcategory | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Part # Aliases | 2-640384-1 | 2-640384-0 | - |