N-channel JFET (2N5457)
2N5457 · I_DSS 3 mA · V_P -1.8 V · conducts at V_GS = 0 and pinches off as the gate goes negative
Try it on the benchThe lab drops it on an empty bench and opens its datasheet card.
Pins
- D
- S
- G
Ratings and limits
| I_DSS | 3 mA |
|---|---|
| V_P | -1.8 V |
| Gate | reverse-biased junction, never forward-bias it |
How to use it
Normally on; a negative gate voltage pinches the channel off. Very high input impedance: preamps, buffers and constant-current sources (gate tied to source).