{HEAD ~ A transistor} protects {TAIL ~ the integrated circuit} against a surge voltage from a battery terminal 
protects
{ HEAD ~ A transistor } protects { TAIL ~ the integrated circuit } against a surge voltage from a battery terminal
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH