A varistor or rectifier having the structure of {HEAD ~ the invention} is improved in {TAIL ~ these characteristics} 
A varistor or rectifier having the structure of { HEAD ~ the invention } is improved in { TAIL ~ these characteristics }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL