SG3R08B420 tube equivalent, gas discharge tube.
> Provide ultra-fast response to surge voltage from slow-rising. > surge of 100V/s to rapid-rising surge of 1KV/μs. > Stable breakdown voltage. > High insulation resistan.
. The capacitance does not vary with voltage , and will not cause operational problems with ADSL2+ , where capacitance v.
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