Product review (3 stars): This part has gotten pretty good reviews however nobody has actually tested it
This part has gotten pretty good reviews however nobody has actually tested it.  You can get the same results by twisting the two wires that connect to this part together.  The real test is that it opens, or the fuse blows, when it gets too hot.  Haven't seen anybody comment on that although I haven't read about any fires here due to this part either.  I ordered two and will be testing to see what temp it blows at.