For the sake of keeping this question focused, I am limiting the subject matter to technical data sheets. More so, to electronic component data sheets. I.e. for such components as resistors, capacitors integrated circuits, connectors, etc. Commercial electronic component distributors such as DigiKey, Mouser, Arrow, etc. offer 100's of thousands of these for the myriad of components they sell. Most often they are in the form of a viewable or downloadable PDF. These "data sheets" or "specs" list all of the technical particulars of the components such as physical size and electrical characteristics, as well as providing lots of advice on how to use the component in a product you might be designing.
The data sheets are created by the individual manufacturers of the components which are sold by the on-line distributors. Virtually every such component has such a data sheet. These can range in length from a few pages to hundreds of pages.
My question is: are these data sheets protected by US copyright law? Could I, hypothetically, copy 10,000 of these to my own website and offer them to the general public for free? My question is NOT how to go about getting permission from the manufacturers (corporate authors). Rather, my question is do the component manufacturers have any legal ability to prevent and remedy such mass copying?
Knowing full well that such legal questions generally generate a lot of hypothetical, provisional and tentative answers, my further question is has there ever been a specific legal case decided on this specific copyright or IP issue?