The MPSA56BK from Diotec Semiconductor is a Bipolar Junction Transistor with Emitter Base Voltage 4 V, Emitter Cut off Current 100 nA, Collector Base Voltage 80 V, Collector Cut off Current 100 nA, Collector Emitter Voltage 80 V. Tags: Through Hole, PNP Transistor. More details for MPSA56BK can be seen below.