Onsemi
Onsemi FDV301N Transistor - 25V 0.22A 4.0 Ohm Standard
Fairchild
Fairchild BSS138 Transistor - 50V 0.22A 0.7 Ohm Standard
Onsemi (fairchild)
Onsemi (fairchild) BSS138-SS Transistor - 50V 0.22A n/a Ohm SMD