2N4392 Philips, JFET, N-Channel Silicon Junction Field-Effect Transistor, 
V(BR)GSS -40V, Pt 1.8W, Idss 25..75mA, VGS(off) –2 to –5(V), 
Case type: TO-18 Metal, 

Obdobný produkt .. KE4392, 2N4392 TO92,