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| PartNumber | 3-644381-3 | 3-644381-4 | 3-644381-2 |
| Description | Headers & Wire Housings 03P MTA156 QUAD ASSY W/TBS C/E | Headers & Wire Housings REC 04P C/E 18AWG RAMP QUAD | Headers & Wire Housings REC 02P C/E 18AWG RAMP QUAD |
| Manufacturer | TE Connectivity | TE Connectivity AMP Connectors | - |
| Product Category | Headers & Wire Housings | Rectangular Connectors - Free Hanging, Panel Mount | - |
| RoHS | Y | - | - |
| Product | Wire Housings | - | - |
| Type | Receptacle Assembly | - | - |
| Number of Positions | 3 Position | 4 | - |
| Pitch | 3.96 mm | 0.156" (3.96mm) | - |
| Number of Rows | 1 Row | 1 | - |
| Mounting Style | Free Hanging | - | - |
| Termination Style | IDC | - | - |
| Contact Gender | Socket (Female) | - | - |
| Contact Plating | Tin | - | - |
| Series | MTA-156 | MTA-156 | - |
| Tradename | MTA | - | - |
| Current Rating | 7 A | - | - |
| Housing Material | Nylon | - | - |
| Voltage Rating | 600 V | - | - |
| Brand | TE Connectivity / AMP | - | - |
| Contact Material | Copper Alloy | - | - |
| Latching Type | Locking Ramp | - | - |
| Product Type | Headers & Wire Housings | - | - |
| Factory Pack Quantity | 500 | - | - |
| Subcategory | Headers & Wire Housings | - | - |
| Wire Gauge | 18 | 18 AWG | - |
| Color | - | Black | - |
| Packaging | - | Bulk | - |
| Mounting Type | - | Free Hanging (In-Line) | - |
| Features | - | Closed End, Polarizing Key | - |
| Connector Type | - | Receptacle | - |
| Contact Finish | - | Tin | - |
| Contact Finish Thickness | - | 80μin (2.03μm) | - |
| Contact Type | - | Female Socket | - |
| Row Spacing | - | - | - |
| Fastening Type | - | Locking Ramp | - |
| Cable Termination | - | IDC | - |
| Wire Type | - | Discrete or Ribbon Cable | - |