The transistor of 500mA class which went only into 2125 size conventionally was attained in 1608 sizes or 1208 sizes.
FEATUREs
1) High current.
2) Low VCE(sat).
VCE(sat) ≤ 250mV at IC = 200mA / IB = 10mA
APPLICATIONs
For switching
For muting