View rn4904 datasheet:

RN4904 TOSHIBA Transistor Silicon PNP Epitaxial Type (PCT Process) Silicon NPN Epitaxial Type (PCT Process) RN4904 Switching, Inverter Circuit, Interface Circuit Unit: mm And Driver Circuit Applications Includeing two devices in US6 (ultra super mini type with 6 leads) With built-in bias resistors Simplify circuit design Reduce a quantity of parts and manufacturing process Equivalent Circuit and Bias Resister Values R1: 47k? R2: 47k? (Q1, Q2 Common) Q1 Maximum Ratings (Ta = 25° JEDEC ? °C) ° ° EIAJ ? TOSHIBA 2-2J1A Characteristic Symbol Rating Unit Weight: 6.8mg Collector-base voltage VCBO -50 V Collector-emitter voltage VCEO -50 V Emitter-base voltage VEBO -10 V Collector current IC -100 mA Q2 Maximum Ratings (Ta = 25° °C) ° ° C