2SA1048Y, MCC/LGE, Silicon PNP Epitaxial Transistor, Low Noise Audio.. 
Vcbo -50V, Ic -150mA, 200mW, min.80MHz, 
marking Y = hFE 120..240, 
Case type: TO-92S, 

Marking: A1048 (Y), CSA1048, NTE2362, 
ECB