John, can you find me one component manufacturer that calls it a PLP or Power Loss Protection capacitor? Have fun on that one.

They are either called supercapacitors, just plain old capacitors, and sometimes charge capacitors. They are either Electrolytic or Tantalum.
Now how you use or implement them in an apllication (for power loss or correction) is different than what they are named. Don't confuse the two.

BTW, if you want, I can charge up some of the ones we have in our RF Transmitters here, ship it to you and it would restart a heart if need be.

Just my 2 cents (oh, and the electronics industry as well).