| PartNumber | SMP4222 | SMP4221 | SMP4220 |
| Description | JFET JFET N-Channel -30V 10mA 300mW 2mW | JFET JFET N-Channel -30V 10mA 300mW 2mW | JFET JFET N-Channel -30V 10mA 300mW 2mW |
| Manufacturer | InterFET | InterFET | InterFET |
| Product Category | JFET | JFET | JFET |
| RoHS | Y | Y | Y |
| Technology | Si | Si | Si |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SOT-23-3 | SOT-23-3 | SOT-23-3 |
| Transistor Polarity | N-Channel | N-Channel | N-Channel |
| Configuration | Single | Single | Single |
| Vds Drain Source Breakdown Voltage | 15 V | 15 V | 15 V |
| Vgs Gate Source Breakdown Voltage | - 30 V | - 30 V | - 30 V |
| Drain Source Current at Vgs=0 | 15 mA | 6 mA | 3 mA |
| Packaging | Bulk | Bulk | Bulk |
| Type | JFET | JFET | JFET |
| Brand | InterFET | InterFET | InterFET |
| Forward Transconductance Min | 2.5 mS | 2 mS | 1 mS |
| Gate Source Cutoff Voltage | - 8 V | - 6.3 V | - 4 V |
| Factory Pack Quantity | 1 | 1 | 1 |