TI (Texas Instruments) 2N3039 Package Shape: ROUND Package Style: DISK BUTTON Surface Mount: Yes Terminal Form: FLAT Terminal Finish: TIN LEAD Terminal Position: RADIAL Number of Terminals: 3 Package Body Material: CERAMIC, METAL-SEALED COFIRED Configuration: SINGLE Case Connection: ISOLATED Number of Elements: 1 Transistor Application: SWITCHING Transistor Element Material: SILICON Transistor Polarity: PNP Power Dissipation Ambient-Max: 0.3600 W Transistor Type: GENERAL PURPOSE SMALL SIGNAL Turn-on Time-Max (ton): 150 ns Turn-off Time-Max (toff): 650 ns DC Current Gain-Min (hFE): 15 Collector Current-Max (IC): 0.5000 A Collector-emitter Voltage-Max: 35 V Transition Frequency-Nom (fT): 50 MHz