View 2sd1806 datasheet:

Ordering number:EN2116B NPN Epitaxial Planar Silicon Transistor 2SD1806 High-Current Switching Applications Applications Package Dimensions · Relay control, motor control, switching. unit:mm 2045B Features [2SD1806] 6.5 · Low saturation voltage. 2.3 5.0 0.5 4 · On-chip diode between collector and emitter. · Small and slim package permitting 2SD1806-applied sets to be made more compact. 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 [2SD1806] 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 requi