second connecting means connecting one of {HEAD ~ the terminals} of {TAIL ~ the free wheeling diode} internally within the housing to the metal base plate  
second connecting means connecting one of { HEAD ~ the terminals } of { TAIL ~ the free wheeling diode } internally within the housing to the metal base plate
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH