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