| PartNumber | 3-644694-3 | 3-644694-2 | 3-644694-4 |
| Description | Headers & Wire Housings 3P R/A HDR RETENTIVE | Headers & Wire Housings HDR 02P R/A SLIM | Headers & Wire Housings 4P R/A HDR RETENTIVE |
| Manufacturer | TE Connectivity | - | TE Connectivity AMP Connectors |
| Product Category | Headers & Wire Housings | - | Rectangular Connectors - Headers, Male Pins |
| RoHS | Y | - | - |
| Product | Headers | - | - |
| Type | Unshrouded | - | - |
| Number of Positions | 3 Position | - | 4 |
| Pitch | 2.54 mm | - | 0.100" (2.54mm) |
| Number of Rows | 1 Row | - | 1 |
| Mounting Style | - | - | - |
| Termination Style | Through Hole | - | - |
| Mounting Angle | Right Angle | - | - |
| Contact Gender | Pin (Male) | - | - |
| Contact Plating | Tin | - | - |
| Series | MTA-100 | - | MTA-100 |
| Tradename | MTA | - | - |
| Packaging | Bulk | - | Bulk |
| Application | Wire-to-Board | - | - |
| Housing Material | Polyester | - | - |
| Voltage Rating | 250 V | - | - |
| Brand | TE Connectivity / AMP | - | - |
| Contact Material | Copper Alloy | - | - |
| Flammability Rating | UL 94 V-0 | - | - |
| Product Type | Headers & Wire Housings | - | - |
| Factory Pack Quantity | 500 | - | - |
| Subcategory | Headers & Wire Housings | - | - |
| Part # Aliases | 3-644694-3 | - | - |
| Color | - | - | Natural |
| Termination | - | - | Press-Fit |
| Mounting Type | - | - | Through Hole, Right Angle |
| Features | - | - | - |
| Connector Type | - | - | Header, Unshrouded |
| Contact Finish | - | - | Tin |
| Contact Finish Thickness | - | - | 150μin (3.81μm) |
| Number of Positions Loaded | - | - | All |
| Contact Type | - | - | Male Pin |
| Row Spacing | - | - | - |
| Fastening Type | - | - | - |
| Contact Mating Length | - | - | 0.260" (6.60mm) |