2SB1443, ROHM Semiconductor, Silicon PNP Low Frequency Power Transistor, 
Vcbo -50V, Ic -2A, 1W, 200MHz, 
Case type: SOT-92S, ATR, 

Marking: B1443, rank Q: hFE 120..270, 
ECB 

Low saturation voltage. VCE(sat)= −0.35V(Max.) at IC/IB= −1A/−50mA. 
Excellent DC current gain characteristics.