si4980dy transistor ng datasheet pdf SI4980DYtagagawa : Vishay Siliconix paglalarawan : Dual N-Channel 80-V MOSFET SI4980DYtagagawa : VISAY[Vishay Siliconix] paglalarawan : Dual N-Channel 80-V MOSFET SI4980DYtagagawa : VISAY[Vishaypaglalarawan : Dual N-Channel 80-V MOSFET