| PartNumber | 640250-2 | 640250-4 | 640250-1 |
| Description | Headers & Wire Housings 2P HSG W/LCK RMP SL156 | Headers & Wire Housings 4P HSG W/LCK RMP SL156 | Headers & Wire Housings 01P SL156 HSG W/LCK |
| Manufacturer | TE Connectivity | TE Connectivity | TE Connectivity |
| Product Category | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| RoHS | Y | Y | Y |
| Product | Wire Housings | Wire Housings | Wire Housings |
| Number of Positions | 2 Position | 4 Position | - |
| Pitch | 3.96 mm | 3.96 mm | 3.96 mm |
| Number of Rows | 1 Row | 1 Row | 1 Row |
| Mounting Style | - | - | - |
| Termination Style | - | - | - |
| Contact Gender | - | - | - |
| Contact Plating | - | - | - |
| Mating Post Length | - | - | - |
| Termination Post Length | - | - | - |
| Series | SL-156 | SL-156 | SL-156 |
| Packaging | Bulk | - | - |
| Application | Wire-to-Board | Wire-to-Board | Wire-to-Board |
| Contact Type | Socket (Female) | Socket | Socket |
| Current Rating | 5 A | 5 A | 5 A |
| Housing Material | Nylon | Nylon | Nylon |
| Voltage Rating | 250 V | 250 V | - |
| Brand | TE Connectivity / AMP | TE Connectivity / AMP | TE Connectivity / AMP |
| Contact Material | - | - | - |
| Flammability Rating | UL 94 V-0 | UL 94 V-0 | UL 94 V-0 |
| Row Spacing | - | - | - |
| Housing Gender | Receptacle | Receptacle | Receptacle |
| Latching Type | Locking Ramp | Locking Ramp | Locking Ramp |
| Product Type | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Factory Pack Quantity | 500 | 500 | 1 |
| Subcategory | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Part # Aliases | 640250-2 | 640250-4 | 640250-1 |
| Unit Weight | 0.018730 oz | 0.019824 oz | 0.009595 oz |