Hi..
can anyone suggest cheap P-ch MOSFETs capable of minimum 2A of drain current, drain-source voltage at least 30V, and gate threshold lower than 4V (logic gate). It is for the following project https://www.instructables.com/id/Poormans-Buck/?ALLSTEPS the one provided is not available in my country for some reason.
Instead of looking for a substitute part number, it is best to find out what P-channel mosfets are actually available in your part of the world and then try to compare their datasheets & find the best match.
Also, suppliers like Digikey, Newark, Mouser... etc provide filtered search engines through their inventory that may be useful.