View rn47a4 datasheet:

RN47A4 TOSHIBA Transistor Silicon NPN·PNP Epitaxial Type (PCT process) (Bias Resistor built-in Transistor) RN47A4 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 JEDEC ? E E JEITA ? Q1 TOSHIBA 2-2L1D R1: 47 k?, R2: 47 k? Weight: 0.0062g (typ.) Q2 R1: 10 k?, R2: 47 k? Q1: RN1104F Q2: RN2107F Marking Equivalent Circuit (top view) 5 4 5 4 Q2 2 4 Q1 1 2 3 1 2 3 1 2004-04-28 R2 R2 R