HLB121 series datasheets. Manufacturer: HSMC.

HLB121I Emitter to base voltage:6V; NPN triple diffused planar type high voltage transistor for use in switching applications in 3-pin TO-251 package. Datasheet*) HLB121J Emitter to base voltage:6V; NPN triple diffused planar type high voltage transistor for use in switching applications in 3-pin TO-252 package. Datasheet*) HLB1211 NPN Triple Diffused Planar Type High Voltage Transistors?? Datasheet*)

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