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Mounting transistors MRF1K50HRS

Question asked by Bruce Campbell on Apr 14, 2020
Latest reply on Apr 21, 2020 by LPP

I am an experimenter that just purchased two (2) of your transistors MRF1K50HRS. I also have two (2) BLF188xr transistors. I plan on using those (MRF1K50HRS) on 1-54 MHz, perhaps on higher frequencies on later projects.


Question 1. I see in your videos you using (for mounting) a screw-in set-up, While I see in other videos (non NXP people) soldering the bottom of transistor to copper spreader. Presumably that is done for better heat transfer. Is there a true advantage to soldering? They show this being done on a stove or hot plate. Your comments on that please.


Question 2. What is the name of the screw-in device where can I purchase it and do you recommend it? Recommendation on heat transfer compound?


Do you have any other suggestions or comments for me?


To improve of what I have now, do you have any links for board designs for me?


I thank you very much.

Bruce Campbell


Phone 772.340.1620

455 sw Dahled ave

Port Saint Lucie, Florida 34953