I-MOSFET ngokwayo inezinzuzo eziningi, kodwa ngesikhathi esifanayo i-MOSFET inomthamo ozwela kakhulu wesikhathi esifushane wokulayisha ngokweqile, ikakhulukazi ezimweni zesicelo se-high-frequency, ngakho-ke ekusetshenzisweni kwamandla.Ama-MOSFET kumele ithuthukiswe isekethe yayo yokuvikela ephumelelayo ukuze kuthuthukiswe ukuzinza kwedivayisi.
Ukukubeka ngokungagwegwesi ukuvikelwa kwe-overcurrent, itholakala ekuphumeni kwamaphutha esekethe emfishane noma ukulayishwa ngokweqile kwamandla kagesi noma ukugcinwa komthwalo, kulesi sigaba sokuvikeleka kokuphakelwa kwamandla okudlulele kunezindlela ezihlukahlukene, njengokuphuma okuqhubekayo, okuqhubekayo. uhlobo lwamandla, njll., kodwa ukuthuthukiswa kwesekethe enjalo yokuvikela okweqile akukwazi ukuhlukaniswa ne-MOSFET, ama-MOSFET ekhwalithi ephezulu angathuthukisa indima yokuvikela amandla okudlulele.