The MMBFJ270 from onsemi is a Junction Field Effect Transistor (JFET) with Drain Saturation Current -2.0 to -15 mA, Gate Source Voltage 30 V, Gate Current 50 mA, Gate Reverse Current 200 pA, Power Dissipation 0.225 W. Tags: Surface Mount. More details for MMBFJ270 can be seen below.