Calling any HVAC techs out there.

I have a Maytag (read Fedders) dehumidifier and the compressor wouldn't come on. I've isolated the offending part: the thermal protector. Unfortunately they don't make it any more and I can't seem to find one on line for love or money.
The number on the part is B170-150-241C and the discontinued part number is FD 3205-030.
I can find other protectors out there but I know these are specific to the compressor. I can buy 1/8, 1/6 1/4 1/3 1/2 and 1 hp ones.
I can't see the data plate and don't know if there would be anything of use on it. This is a 30 pint dehumidifier draws 4.7 amps total.

I really don't want to spend $170 on a new one if all I need is a $6 part.

Any ideas?

Thanks

I guess it boils down to what size the compressor is. Any idea what is typical on a unit like this?

This is the resetting type, a bi-metallic disc that will break contact when it gets too hot. That's why I need to find the right size. Too low and it will shut off too often, too high and the motor will burn up.