Model: BC547 Transistor Type: NPN Collector Base Voltage: 45V Collector Emitter Voltage: 50V Emitter Base Voltage: 6V Collector Current: 0.5A Power Dissipation: 625mW Storage Temperature: -55? ~ +150? Package: TO-92 Total Size: Approx. 0.7 x 0.1 inch Pin Size: Approx. 0.5 x 0.1 inch