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TVSS or SSE is a device used to protect devices from Extra high voltage or current rise which happens in 1 to 10 micro seconds such as lightning it uses some SAD or MOV like Filter or transients which diverts or filter the high peak current or voltage and pases to the ground without disturbing the normal working .
. Within the T V S, damaging voltage spikes are limited by clamping or avalanche action of a rugged silicon pn junction which reduces the amplitude of the transient to a nondestructive level
