MDE Semiconductor, Inc. 78-150 Calle Tampico, Unit 210, La Quinta, CA., USA 92253 Tel: 760-564-8656 • Fax: 760-564-2414 1-800-831-4881 Email: [email protected] Web: www.mdesemiconductor.com Metal Oxide Varistors - Peak Pulse and Derating Curves Peak Current Per Pulse Verus Pulse Duration Number of Pulses in order from 100% Respectively 1 Pulse - (Top line on graph) 10 Pulses 102 Pulses 10 103 Pulses 104 Pulses 105 Pulses 1 106 Pulses - (Bottom line on graph) 0.1 0.01 40 15000 10000 35 5000 2000 1000 30 500 200 25 100 50 20 Pulse Duration - microseconds Temperature Derating Curve Power and Energy Rating vs Temperature 120% Percentage of Rated Power Energy Percentage of Peak Current Rating 100 100% 80% 60% 40% 20% 130 120 110 4.0 100 Ambient Temp °C 90 3.0 80 70 60 ≈ 50 -55 0%