View 2sc2411k datasheet:

2SC2411K / 2SC4097 / 2SC1741S Transistors Medium Power Transistor (32V, 0.5A) 2SC2411K / 2SC4097 / 2SC1741S Features External dimensions (Units : mm) 1) High ICMax. 2SC2411K 2SC4097 ICMax. = 0.5mA 2.9±0.2 2) Low VCE(sat). 1.1+0.2 2.0±0.2 1.9±0.2 -0.1 1.3±0.1 0.9±0.1 0.8±0.1 0.95 0.95 Optimal for low voltage operation. 0.65 0.65 0.7±0.1 0.2 (1) (2) (1) (2) 3) Complements the 0 ? 0.1 0 ? 0.1 2SA1036K / 2SA1577 / 2SA854S. (3) (3) All terminals have same dimensions All terminals have same dimensions +0.1 0.3+0.1 0.15±0.05 0.15-0.06 -0 0.4+0.1 -0.05 Structure (1) Emitter (1) Emitter Epitaxial planar type ROHM : SMT3 (2) Base ROHM : UMT3 (2) Base EIAJ : SC-59 (3) Collector EIAJ : SC-70 (3) Collector NPN silicon transistor Abbreviated symbol : C* Abbreviat