Transistor Polarity:Npn; Collector Emitter Voltage Max:40V; Continuous Collector Current:600Ma; Power Dissipation:350Mw; Transistor Mounting:Surface Mount; No. Of Pins:3Pins; Transition Frequency:250Mhz; Dc Current Gain Hfe Min:20Hferohs Compliant: No |Diodes Inc. MMBT4401-13-F.