There’s some confusion below and in the product images as to what the ACTUAL footprint of this part is. I’ve just ordered a few for a project (6/21/13) and here are my notes: 1) the datasheet linked above is correct, and the images correspond to the FOOTPRINT (view looking down THROUGH the part). 2) the FIRST image seems to be correct, and of the part shipped (JZC-11F 005-1Z). 3) In the Sparkfun eagle library at https://github.com/sparkfun/SparkFun-Eagle-Libraries, the part is RELAYPTH4, with the RELAY-JZC package (Notably NOT the “SPDT relay (COM-00100)”, which is quite misleading.
tl;dr: part-footprint-shipped matching is confusing, the part I received on 6/21/13 matches RELAYPTH4 in the library.