NPN switching transistor

chip size(mm2) and package
1.42*1.42, TO-126.
1.47*1.47 with damper inside, TO-126.
1.63*1.63, TO-126.
1.84*1.84, TO-220.

Main technical data
BVCEO:>400V and >450V for you to choose.
HFE:18-21, 21-24 and 24-27 for you to choose.
TS:2-2.5, 2.5-3, 3-3.5 and 3.5-4 for you to choose.

this item is mainly used for energy saving lamp and electronic ballast swithing.

NPN switching transistor