The MMDT3906 from Lision Technology is a Bipolar Junction Transistor with Emitter Base Voltage 5 V, Collector Base Voltage 40 V, Collector Emitter Breakdown Voltage 40 V, Collector Emitter Voltage 40 V, Continuous Collector Current 200 mA. Tags: Surface Mount, PNP Transistor. More details for MMDT3906 can be seen below.