Transistor and fet question

[mike49504]

Im working on a zapco amp and the fets they are using are IRFZ40.

Will IRFZ44's be a good replacement?

Also the drivers are 2n6725 and 2n6726

I have the 2n6725's . Is there a good sub for the 6726's?

 

[sathit dokmadue]

IRFZ44 ok

Different
2N6725
http://www.datasheetcatalog.org/datasheet2/f/0c6q0cfww9lohhou8o589z5sl7wy.pdf
2N6726
http://www.datasheetcatalog.org/datasheet2/e/0lye20crskcfjtkx9udpuordqwyy.pdf

 

[mike49504]

I know they are different.

Im looking for a good replacement (sub) for the 2n6726's

Anyone know of a good sub?

 

[Perry Babin]

If these are the power supply FET drivers, they're not likely critical components. Unless the amp has more than 8 Z44s/bank, the MPSA06 and MPSA56 are likely perfectly suitable replacements.