The 2SC3519A from MOSPEC SEMICONDUCTOR is a Bipolar Junction Transistor with Emitter Base Voltage 5 V, Emitter Cut off Current 100 µA, Collector Base Voltage 180 V, Collector Cut off Current 100 µA, Collector Emitter Breakdown Voltage 180 V. Tags: Through Hole, NPN Transistor. More details for 2SC3519A can be seen below.