Hi all.
Just a quick question that I hope will have a simple answer.
I am looking for through hole zener diodes with the same specification as these:
Z1 BZV55C24
Z2 BZV55C3V3
Z3 BZV55C6V2
Z4 BZV55C3V3
Now I really hope it is as simple as changing suffix or prefix. Any help will be vary much appreciated.

 

Try BZX55C24 etc. These should be the same but in DO35 package. Also BZX79 seem to be the same too, check on farnell for example.

 

If you get same or (somewhat higher is also OK) max power dissipation(wattage) and zener voltage. You can select from what you find available in through hole zeners

 

1N52xxB looks like a direct cross.

Good luck.