The 2SA1258 from New Jersey Semiconductor is a Bipolar Junction Transistor with Emitter Base Voltage 5 V, Collector Base Voltage 70 V, Collector Emitter Voltage 60 V, Continuous Collector Current 3 A, DC Current Gain 2000. Tags: Through Hole, PNP Transistor. More details for 2SA1258 can be seen below.