{TAIL ~ The system} includes a circuit board, a solid state switching device, a heat sink, and {HEAD ~ a temperature sensor} 
{ TAIL ~ The system } includes a circuit board , a solid state switching device , a heat sink , and { HEAD ~ a temperature sensor }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD