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| PartNumber | 2-640445-1 | 2-640445-2 | 2-640445-0 |
| Description | Headers & Wire Housings 21P HDR FL/STR SN | Headers & Wire Housings HEADER 22 POS | Headers & Wire Housings 20P MTA156 HDR ASSY |
| Manufacturer | TE Connectivity | TE Connectivity | TE Connectivity AMP Connectors |
| Product Category | Headers & Wire Housings | Headers & Wire Housings | Rectangular Connectors - Headers, Male Pins |
| RoHS | N | Y | - |
| Product | Headers | Headers | - |
| Type | Unshrouded | Unshrouded | - |
| Number of Positions | 21 Position | 22 Position | 20 |
| Pitch | 3.96 mm | 3.96 mm | 0.156" (3.96mm) |
| Number of Rows | 1 Row | 1 Row | 1 |
| Mounting Style | - | - | - |
| Termination Style | Through Hole | Through Hole | - |
| Mounting Angle | Straight | Straight | - |
| Contact Gender | Pin (Male) | Pin (Male) | - |
| Contact Plating | 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 | - |
| Housing Material | Polyester | Polyester | - |
| Voltage Rating | 600 V | 600 V | - |
| Brand | TE Connectivity / AMP | TE Connectivity / AMP | - |
| Contact Material | Copper Alloy | Copper Alloy | - |
| Flammability Rating | UL 94 V-0 | UL 94 V-0 | - |
| Latching Type | Friction Lock | Friction Lock | - |
| Product Type | Headers & Wire Housings | Headers & Wire Housings | - |
| Factory Pack Quantity | 250 | 250 | - |
| Subcategory | Headers & Wire Housings | Headers & Wire Housings | - |
| Part # Aliases | 2-640445-1 | 2-640445-2 | - |
| Color | - | - | Natural |
| Packaging | - | - | Bulk |
| Termination | - | - | Solder |
| Mounting Type | - | - | Through Hole |
| Features | - | - | - |
| Connector Type | - | - | Header, Unshrouded |
| Contact Finish | - | - | Tin |
| Contact Finish Thickness | - | - | - |
| Number of Positions Loaded | - | - | All |
| Contact Type | - | - | Male Pin |
| Row Spacing | - | - | - |
| Fastening Type | - | - | Friction Lock |
| Contact Mating Length | - | - | 0.400" (10.16mm) |