jansf2n7422u transistor of datasheet pdf

JANSF2N7422U
Manufacturer : International Rectifier
Description : HEXFET Transistor(HEXFET ?????

JANSF2N7422U
Manufacturer :
Description : -100V 300kRad Hi-Rel Single P-Channel TID Hardened MOSFET in a SMD-1 package