2SC1815-Y(TE2 2SC1815-Y(TE2) 2SC1815-Y(TE2，F) 2SC1815Y(TE2,F,T) 2SC1815-Y(TE2，F，T) 2SC1815-Y(TPE2 2SC1815-Y(TPE2) 2SC1815-Y(TPE2，F) 2SC1815Y/GR 2SC1815-Y/GR