| PartNumber | 644456-2 | 644456-4 | 644456-3 |
| Description | Headers & Wire Housings NARROW FLT HDR 2P Straight Post | Headers & Wire Housings NARROW FLT HDR 4P Straight Post | Headers & Wire Housings NARROW FLT HDR 3P Straight Post |
| 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 | Unshrouded |
| Number of Positions | 2 Position | 4 Position | 3 Position |
| Pitch | 2.54 mm | 2.54 mm | 2.54 mm |
| Number of Rows | 1 Row | 1 Row | 1 Row |
| Mounting Style | - | - | - |
| Termination Style | Through Hole | Through Hole | Through Hole |
| Mounting Angle | Vertical | Vertical | Vertical |
| Contact Gender | Pin (Male) | Pin (Male) | Pin (Male) |
| Contact Plating | Tin | Tin | Tin |
| Series | MTA-100 | MTA-100 | MTA-100 |
| Application | Wire-to-Board | Wire-to-Board | Wire-to-Board |
| Current Rating | 5 A | 5 A | 5 A |
| Housing Material | Polyester | Polyester | Polyester |
| Voltage Rating | 250 V | 250 V | 250 V |
| 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 | UL 94 V-0 |
| Product Type | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Factory Pack Quantity | 500 | 500 | 500 |
| Subcategory | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |