View rn1601-rn1606 datasheet:

RN1601~RN1606 TOSHIBA Transistor Silicon NPN Epitaxial Type (PCT Process) RN1601,RN1602,RN1603 RN1604,RN1605,RN1606 Unit: mm Switching, Inverter Circuit, Interface Circuit And Driver Circuit Applications Including two devices in SM6 (super mini type with 6 leads) With built-in bias resistors Simplify circuit design Reduce a quantity of parts and manufacturing process Complementary to RN2601~RN2606 Equivalent Circuit and Bias Resistor Values Type No. R1 (k?) R2 (k?) RN1601 4.7 4.7 RN1602 10 10 RN1603 22 22 RN1604 47 47 JEDEC ? RN1605 2.2 47 EIAJ ? RN1606 4.7 47 TOSHIBA 2-3N1A Weight: 0.015g Equivalent Circuit (Top View) Maximum Ratings (Ta = 25° °C) (Q1, Q2 Common) ° ° Characteristic Symbol Rating Unit Collector-base voltage VCBO 50 V