Can I use two resistors in series for Rset for PTH08T2xx modules?

Hello,

Yes you can use resistors in any configuration, series, parallel, or series-parallel to obtain your desired resistance.

Thanks,

The Rset adjustment  resistor  can be any combination of 1%  values, 100PPM resistors  which sets  the output voltage .

Tom

I can safely say that a 1/16W (0.0625W) can be substituted for a 0.05W resistor in this case and the size doesn't matter.  You could go with a 0805 or a through hole resistor as long as the resistance is withing the rated value range of 1%. 

Using a higher wattage rating on any devices is more acceptable than using a lower rated one in 99% of the cases.

Thanks,