The MMBT3904-EVL from Venkel is a Bipolar Junction Transistor with Collector Cut off Current 50 nA, Collector Emitter Breakdown Voltage 40 V, Continuous Collector Current 200 mA, DC Current Gain 100, Gain Bandwidth Product 300 MHz. Tags: Surface Mount, NPN Transistor. More details for MMBT3904-EVL can be seen below.