View rn47a1 datasheet:

RN47A1 TOSHIBA Transistor Silicon NPN·PNP Epitaxial Type (PCT process) (Bias Resistor built-in Transistor) RN47A1 Switching, Inverter Circuit, Interface Circuit and Unit: mm Driver Circuit Applications • Two devices are incorporated into an Ultra-Super-Mini (5 pin) package. • Incorporating a bias resistor into a transistor reduces parts count. Reducing the parts count enables the manufacture of ever more compact equipment and lowers assembly cost. Equivalent Circuit and Bias Resistor Values Q1 Q2 C C R1 R1 B B E E JEDEC ? R1: 4.7 k? (Q1, Q2 common) JEITA ? Q1: RN1110F TOSHIBA 2-2L1D Q2: RN2110F Weight:0.0062g (typ.) Marking Equivalent Circuit (top view) 5 4 5 4 Q2 2 1 Q1 1 2 3 1 2 3 1 2004-04-28 RN47A1 Maximum Ratings (Ta = 25°C) (