The 2N2219/51 from New Jersey Semiconductor is a Bipolar Junction Transistor with Emitter Base Voltage 6 V, Collector Base Voltage 75 V, Collector Emitter Voltage 40 V, Continuous Collector Current 0.8 A, Gain Bandwidth Product 300 MHz. Tags: Through Hole, NPN Transistor. More details for 2N2219/51 can be seen below.