| PartNumber | IFN363 | IFN3954 | IFN3956 |
| Description | JFET N-Ch -40V JFET -0.3 1.0V Igss 1.0V Idss | JFET N-Channel JFET 50mA | JFET N-Channel JFET 50mA |
| Manufacturer | InterFET | InterFET | InterFET |
| Product Category | JFET | JFET | JFET |
| RoHS | Y | Y | Y |
| Technology | Si | - | - |
| Mounting Style | Through Hole | - | - |
| Package / Case | TO-18-3 | TO-71-6 | TO-71-6 |
| Transistor Polarity | N-Channel | - | - |
| Configuration | Single | - | - |
| Vgs Gate Source Breakdown Voltage | - 40 V | - | - |
| Drain Source Current at Vgs=0 | 30 mA | - | - |
| Packaging | Bulk | Bulk | Bulk |
| Type | JFET | JFET | JFET |
| Brand | InterFET | InterFET | InterFET |
| Forward Transconductance Min | 60 mS | - | - |
| Gate Source Cutoff Voltage | - 1.2 V | - | - |
| Factory Pack Quantity | 1 | 1 | 1 |
| Series | - | IFN39 | IFN39 |
| Part # Aliases | - | 2N3954 | 2N3956 |