The CMLT5551HCTR from Central Semiconductor is a Bipolar Junction Transistor with Emitter Base Voltage 6 V, Base Emitter Saturation Voltage 1 V, Emitter Cut off Current 50 µA, Collector Base Voltage 180 V, Collector Cut off Current 50 µA. Tags: Surface Mount, NPN Transistor. More details for CMLT5551HCTR can be seen below.