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| PartNumber | 647289-1 | 647284-3 | 647285-901 |
| Description | Headers & Wire Housings 18P MTA156 HDR SN WO/ 2,4 & 8 | Headers & Wire Housings 03P MTA CST100 HSG W/O POL | |
| Manufacturer | TE Connectivity | TE Connectivity | - |
| Product Category | Headers & Wire Housings | Headers & Wire Housings | - |
| Product | Headers | Wire Housings | - |
| Type | Unshrouded | Receptacle Housing | - |
| Number of Positions | 18 Position | 3 Position | - |
| Pitch | 3.96 mm | 2.54 mm | - |
| Mounting Style | - | - | - |
| Termination Style | Through Hole | Crimp | - |
| Mounting Angle | Vertical | - | - |
| Contact Gender | Pin (Male) | Socket (Female) | - |
| Contact Plating | Tin | - | - |
| Mating Post Length | 11.43 mm | - | - |
| Termination Post Length | 3.18 mm | - | - |
| Series | MTA-156 | CST-100 | - |
| Application | Wire-to-Board | Wire-to-Board | - |
| Current Rating | 7 A | - | - |
| Housing Material | Thermoplastic | Nylon | - |
| Voltage Rating | 600 V | - | - |
| Brand | TE Connectivity / AMP | TE Connectivity / AMP | - |
| Contact Material | Copper Alloy | - | - |
| Flammability Rating | UL 94 V-0 | UL 94 V-0 | - |
| Product Type | Headers & Wire Housings | Headers & Wire Housings | - |
| Factory Pack Quantity | 500 | 500 | - |
| Subcategory | Headers & Wire Housings | Headers & Wire Housings | - |
| Part # Aliases | 647289-1 | - | - |
| RoHS | - | Y | - |