2SC1815-LY 2SC1815L-Y 2SC1815L-Y(F) 2SC1815L-Y(MA) 2SC1815L-Y-T92-B 2SC1815L-Y-T92-K 2SC1815M 2SC1815M(HHFG) 2SC1815M.C-HF 2SC1815M.GR HHFG