You sure can use that, it's electrically the same EXCEPT the TM version had extra shielding to help with TM interference.
If you have not opened the transducer's hardware bag, you can give HB C/S a call next business day & ask about the "Transducer Exchange Program" and you should be able to swap it out for
just shipping costs.
You're right about the 600 series, they will go buh bye soon.