2SC3837LT1G 2SC3837-P 2SC3837QLT1G 2SC3837T146P 2SC3837-TL 2SC3838 2SC3838G-A-AE3-R 2SC3838G-B-AE3-R 2SC3838G-C-AE3-R 2SC3838G-C-AL3-R