JFET J309 Equivalent

[Mattallica]

Anyone know what a good equivalent to a J309 JFET is? I can't find the part in any Eagle library, and I was curious anyway as they seem to be *slightly* more difficult to obtain than your average transistor. Thanks!

[EBRAddict]

Mouser has them $4 each lol

If you look at the datasheet parameters of Vgs(off) aka Vp aka Vth it is -1V to -4V and Idss is 12-30mA.

If it is used as a buffer (source follower) it should be easy to replace with something else. Otherwise find another part with working, semi-matching parameters or rejigger the schematic to supply a useable Vgs and deal with a different current level.

Or just pay the $4

[Haberdasher]

For the eagle aspect, just pick another fet with the same pinout, and then you can always rename it J309 if you want to.  Schematics are dumb, they don't care.

[gtr2]

Schematics are dumb, they don't care.

Hey, my schematics take offense to that statement