z80A, 80AL Series Nominal Nominal impulse impulse discharge discharge current current 8/20μ μ s 10/1000μ μs idi idi (KA) (A) Nominal Alternating discharge current at 50Hz, 1s ida (A) Nominal dc spark-over voltage Gas Discharge Tube dc spark-over voltage Impulse spark-over voltage at 1kV/μ μs Vsdc (V) Vsdc (V) Vsi (V) 80A75/L 75 60~90 ≦700 50 80A90/L 90 72~108 ≦700 50 80A150/L 150 120~180 ≦700 50 80A230/L 230 184~276 ≦800 100 80A250/L 250 200~300 ≦800 100 80A300/L 300 240~360 ≦800 100 80A350/L 350 280~420 ≦900 Part No. Insulation resistance V (V) Ris (Ω Ω) Capacitance at 1kHz C (pF) 100 10 100 9 ≧10 10 80A400/L 400 320~480 ≦1000 100 80A420/L 420 336~504 ≦1100 100 80A470/L 470 376~564 ≦1100 100 80A600/L 600 480~720 ≦1500 150 80A700/L 700 560~840 ≦1500 250 80A800/L 800 640~960 ≦1500 250 80A900/L 900 720~1080 ≦1500 250 ≦2