si4980dy transistor of datasheet pdf SI4980DYManufacturer : Vishay Siliconix Description : Dual N-Channel 80-V MOSFET SI4980DYManufacturer : VISAY[Vishay Siliconix] Description : Dual N-Channel 80-V MOSFET SI4980DYManufacturer : VISAY[VishayDescription : Dual N-Channel 80-V MOSFET