N-CHANNEL MOSFET 844-IRF820STRRPBF, a TO-263AB 500 Volt 2.5 Amp N-Channel MOSFET has been discontinued by Vishay and once stock has been depleted it will no longer be available. The recommended replacement for this item is 844-IRF820SPBF. The replacement is the same device, but it packaged in tubes instead of tape and reel. 5-1209-5