C(in): 90pF. Cost): 12pF. Quantity per case: 1. Semiconductor material: silicon. FT: 100 MHz. Function: Medium POWER, Solenoid, relay and actuator drivers & DC/DC modules. Max hFE gain: 300. Minimum hFE gain: 35. Collector current: 1A. Ic(pulse): 2A. Marking on the case: AR4. Pd (Power Dissipation, Max): 1W. Assembly/installation: surface-mounted component (SMD). Tf (type): 1000 ns. Housing: SOT-89. Housing (according to data sheet): SOT89. Tr: 250 ns. Type of transistor: NPN. Operating temperature: -65...+150°C. Vcbo: 90V. Saturation voltage VCE(sat): 0.25V. Maximum saturation voltage VCE(sat): 0.5V. Collector/emitter voltage Vceo: 80V. Vebo: 5V. Spec info: screen printing/SMD code AR4. BE diode: no. CE diode: no