hi can someone help me fix a source or adapter of a ticket kt118c brought a zener diode c18 quenmado a transiator F5N60 and LO REMPLACE with the P5N60FP brought the fuse burned a resistance msd burned 120 homios I put a normal 1/4 of w 120 hom and a resistance of 1 hom 2w I can not find the latter I put one of 1 hom 1w and one of three hom 2w in parallel ok the issue is that the source works well for 3 hours then heats up and does not feed the ticket that I think is let cool and go back to work where the error will be the transistor dactachet are the same I think (I do not buy new there is not I am in Venezuela)

if you have a large aluminum cooling plate you hear according to dactachet the two are equal but if I think I must mount the F5N60