MBR, RoHM, C144TS = DTC144TS NPN Digital transistor (with built-in resistors). 
50V, 100mA, 300mW, R..47k+0k, 
Case type: TO-92S SPT 
C144TS = DTC144TA (ATR), DTC144TF (FTR), DTC144TL (LTR), DTC144TS (TPF), DTC144TV (VTR),
2SC3402, RN1002, UN4211, AA1A4M