2n7228u.pdf datasheet:

PD - 90418CIRFN450JANTX2N7228UJANTXV2N7228UPOWER MOSFETREF:MIL-PRF-19500/592SURFACE MOUNT(SMD-1) 500V, N-CHANNELProduct SummaryHEXFET MOSFET TECHNOLOGYPart Number RDS(on) IDIRFN450 0.415 12AHEXFET MOSFET technology is the key to InternationalRectifiers advanced line of power MOSFET transistors. Theefficient geometry design achieves very low on-state re-sistance combined with high transconductance. HEXFET SMD-1transistors also feature all of the well-established advan-tages of MOSFETs, such as voltage control, very fast switch-Features:ing, ease of paralleling and electrical parameter temperaturestability. They are well-suited for applications such as switch- Simple Drive Requirementsing power supplies, motor controls, inverters, choppers, Ease of Parallelingaudio amplifiers, high energy pulse circuits, and virtually Hermet