Gas discharge tube:ZM575 3R75F

             Diameter:5mm

                Height:7.5mm

Type:zm575 3R75,90,150,230,350

(have fail safe):zm575 3R75F,90F,150F,230F,350F

 Nominal D.C Spark-over voltage100v/s (v):75

Tolerance of Vs (v)%:positive or negative20

Impulse spark-over voltage 1kv/ microsecond (v):≤650

Impulse discharge current 8/20 microsecond (KA):5

Alternating discharge current 50HZ-10times(A):5

Insulation resistance(Ω):>10⁹

Capacitance (pf):≤1.5

Holdover voltage:52