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MLE 数据表(PDF) 3 Page - Littelfuse |
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MLE 数据表(HTML) 3 Page - Littelfuse |
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3 / 7 page ![]() MLE Varistor Series Surface Mount Varistors Multilayer Transient Voltage Suppressor 135 www .littelfuse .com 3 FIGURE 4. IMPEDANCE (Z) vs FREQUENCY TYPICAL CHARACTERISTIC 0.1 FREQUENCY (MHz) 10 100 1000 10000 1 10 100 0.01 -0402 -0603 -0805 -1206 Typical Performance Curves For applications exceeding 1250C ambient temperature, the peak surge current and energy ratings must be reduced as shown in Figure 1. 30 10 0.0001 25 0.001 0.01 0.1 1 NUMBER OF PULSES FIGURE 3. STANDBY CURRENT AT NORMALIZED VARISTOR VOLTAGE AND TEMPERATURE 25 20 15 10 5 85 125 O O O 100 80 60 40 20 0 -55 50 60 70 80 90 100 110 120 130 140 150 AMBIENTTEMPERATURE ( oC) FIGURE 1. PEAK CURRENT AND ENERGY DERATING CURVE FIGURE 2. NOMINAL VOLTAGE STABILITY TO MULTIPLE ESD IMPULSES (8KV CONTACT DISCHARGES PER IEC 61000-4-2) 25 0 1 CURRENT (A) 10 100 1000 10000 5 10 15 20 30 Next Previous |
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