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