Is the homebutton of the iPad 2 the same as the iPhone?

Got a question, i want to get a TouchID styled homebutton for my iPad 2. So can i use a homebutton of a iPhone 4, 5 or 6 to insert it into the iPad 2?

For example:

http://thumbs4.ebaystatic.com/d/l225/m/m... - can i insert this homebutton into the iPad? Or is it too small or too big?

Or these?http://thumbs1.ebaystatic.com/d/l225/m/m...

Thanks!