2SC3646T-P-TD-E 2SC3646T-TC 2SC3646T-TD 2SC3646T-TD-E 2SC3647 2SC3647-DT-E 2SC3647G-R-AB3-R 2SC3647G-S-AB3-R 2SC3647G-T-AB3-R 2SC3647L-R-AB3-R