Permanent ON/OFF tactile switch
Searching for on/off pushbuttons with PC pin termination on digikey: http://www.digikey.com/product-search/en?pv258=60&amp;FV=fff40011%2Cfff80061%2C3ac0009%2C3ac0011&amp;mnonly=0&amp;newproducts=0&amp;ColumnSort=0&amp;page=1&amp;stock=1&amp;quantity=0&amp;ptm=0&amp;fid=0&amp;pageSize=25

A couple of the results are very similar to the adafruit component.