View 2sd1800 datasheet:

Ordering number:EN2111B NPN Epitaxial Planar Silicon Transistor 2SD1800 Driver Applications Applications Package Dimensions · Relay drivers, hammer drivers, lamp drivers, motor unit:mm drivers. 2045B [2SD1800] 6.5 Features 2.3 5.0 0.5 4 · High DC current gain (hFE? 4000). · Large current capacity. · Small and slim package making it easy to make 2SD1800-applied sets smaller. 0.85 0.7 1.2 1 : Base 0.6 0.5 2 : Collector 3 : Emitter 1 2 3 4 : Collector 2.3 2.3 SANYO : TP unit:mm 2044B [2SD1800] 6.5 2.3 5.0 0.5 4 0.5 0.85 1 2 3 1 : Base 0.6 1.2 2 : Collector 0~0.2 3 : Emitter 4 : Collector 2.3 2.3 SANYO : TP-FA Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extre