| PartNumber | 350990-4 | 350991-4 | 350990-3 |
| Description | Pin & Socket Connectors 9P HEADER ASSEMBLY | Pin & Socket Connectors 12P HEADER ASSY | Pin & Socket Connectors 09P UMNL HDR ASSY LNG/TL |
| Manufacturer | TE Connectivity | TE Connectivity | TE Connectivity AMP Connectors |
| Product Category | Pin & Socket Connectors | Pin & Socket Connectors | Rectangular Connectors - Headers, Receptacles, Female Sockets |
| RoHS | Y | Y | - |
| Product | Header Assemblies | Header Assemblies | - |
| Number of Positions | 9 Position | 12 Position | 9 |
| Contact Gender | Socket (Female) | Socket (Female) | - |
| Termination Style | Through Hole | Through Hole | - |
| Mounting Style | - | - | - |
| Housing Material | Polyamide (PA) | Polyamide (PA) | - |
| Contact Material | Phosphor Bronze | Phosphor Bronze | - |
| Contact Plating | Tin | Pre-Tin | - |
| Voltage Rating | 600 V | 600 V | - |
| Current Rating | 19 A | 19 A | - |
| Series | MATE-N-LOK | MATE-N-LOK | Universal MATE-N-LOK |
| Packaging | Bulk | Bulk | Bulk |
| Brand | TE Connectivity | TE Connectivity / AMP | - |
| Product Type | Pin & Socket Connectors | Pin & Socket Connectors | - |
| Factory Pack Quantity | 100 | 75 | - |
| Subcategory | Pin & Socket Connectors | Pin & Socket Connectors | - |
| Tradename | MATE-N-LOK | MATE-N-LOK | - |
| Part # Aliases | 350990-4 | 350991-4 | - |
| Color | - | - | Natural |
| Termination | - | - | Solder |
| Mounting Type | - | - | Through Hole |
| Features | - | - | - |
| Connector Type | - | - | Header |
| Contact Finish | - | - | Gold |
| Contact Finish Thickness | - | - | 30μin (0.76μm) |
| Number of Positions Loaded | - | - | All |
| Pitch | - | - | 0.250" (6.35mm) |
| Number of Rows | - | - | 3 |
| Contact Type | - | - | Female Socket |
| Row Spacing | - | - | 0.250" (6.35mm) |
| Fastening Type | - | - | Locking Ramp |