irfr310b transistor of datasheet pdf IRFR310BManufacturer : Fairchild Semiconductor Description : 400V N-Channel MOSFET IRFR310BManufacturer : FAIRCHILD[Fairchild Semiconductor] Description : 400V N-Channel MOSFET IRFR310BManufacturer : FairchildDescription : 400V N-Channel MOSFET