View rn2421-rn2427 datasheet:

RN2421~RN2427 TOSHIBA Transistor Silicon PNP Epitaxial Type (PCT Process) RN2421,RN2422,RN2423,RN2424 RN2425,RN2426,RN2427 Switching, Inverter Circuit, Interface Circuit Unit: mm And Driver Circuit Applications High current type (IC(MAX) = -800mA) With built-in bias resistors Simplify circuit design Reduce a quantity of parts and manufacturing process Low V CE (sat) Complementary to RN1421~RN1427 Equivalent Circuit and Bias Resistor Values Type No. R1 (k?) R2 (k?) RN2421 1 1 RN2422 2.2 2.2 RN2423 4.7 4.7 RN2424 10 10 RN2425 0.47 10 JEDEC ? RN2426 1 10 RN2427 2.2 10 JEITA SC-59 TOSHIBA 2-3F1A Weight: 0.012 g (typ.) Maximum Ratings (Ta = 25° °C) ° ° Characteristics Symbol Rating Unit Collector-Base voltage VCBO -50 V RN2421~2427 C