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V14E510P Datasheet(PDF) 3 Page - Littelfuse |
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V14E510P Datasheet(HTML) 3 Page - Littelfuse |
3 / 16 page © 2014 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/12/14 Varistor Products Radial Lead Varistors > UltraMOVTM Series Part Number Branding Maximum Rating (85°C) Specifications (25°C) Continuous Transient Varistor Voltage at 1mA DCTest Current Maximum Clamping Voltage 8 x 20 µs Typical Capacitance RMS Volts DC Volts Energy 2ms Peak Current 8 x 20 µs V M(AC) V M(DC) W TM I TM 1 x Pulse I TM 2 x Pulse V NOM Min V NOM Max V C I PK f = 1MHz (V) (V) (J) (A) (A) (V) (V) (V) (A) (pF) V20E460P P20V460 460 615 360 10000 6500 675 825 1240 100 400 V07E510P P7V510 510 670 52 1750 1200 738 902 1355 10 40 V10E510P P10V510 510 670 92 3500 2500 738 902 1355 25 110 V14E510P P14V510 510 670 185 6000 4500 738 902 1355 50 200 V20E510P P20V510 510 670 365 10000 6500 738 902 1355 100 350 V10E550P P10V550 550 745 95 3500 2500 819 1001 1500 25 100 V14E550P P14V550 550 745 190 6000 4500 819 1001 1500 50 180 V20E550P P20V550 550 745 370 10000 6500 819 1001 1500 100 300 V10E625P P10V625 625 825 100 3500 2500 900 1100 1650 25 90 V14E625P P14V625 625 825 200 6000 4500 900 1100 1650 50 160 V20E625P P20V625 625 825 400 10000 6500 900 1100 1650 100 250 UltraMOV™ Series Ratings & Specifications (Continued...) NOTE: 1. Average power dissipation of transients should not exceed 0.25W, 0.4W, 0.6W and 1.0W for 7mm, 10mm, 14mm, and 20mm model sizes, respectively. Should transients occur in rapid succession, the average power dissipation is the energy (watt-seconds) per pulse times the number of pulses per second. The power so developedmustbewithinthespecificationsshownonthe DeviceRatingsandSpecificationsTableforthespecific Current Energy and Power Dissipation Ratings Peak Pulse Current Test Waveform FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM 100 90 50 10 O1 T T1 T2 TIME O1 = Virtual Origin of Wave T = Time From 10% to 90% of Peak T1 = Virtual Front time = 1.25 • t T2 = Virtual Time to Half Value (Impulse Duration) Example: For an 8/20µs Current Waveform: 8s = T1 = Virtual Front Time 20 s = T2 = Virtual Time to Half Value 0 1 = Virtual Origin of Wave T = Time from 10% to 90% of Peak T 1 = Rise Time = 1.25 x T T 2=DecayTime Example - For an 8/20 µs Current Waveform: 8µs = T 1 = Rise Time 20µs = T 2=DecayTime 100 90 80 70 60 50 40 30 20 10 0 -55 50 60 70 80 90 100110 120130 140150 AMBIENTTEMPERATURE ( oC) FIGURE 1. CURRENT, ENERGY AND POWER DERATING CURVE Figure 1A - Power Derating for Epoxy Coated Figure 2 FIGURE 1. CURRENT, ENERGY AND POWER DERATING CURVE 100 90 80 70 60 50 40 30 20 10 0 -55 50 60 70 80 90 100110 120130 140150 AMBIENTTEMPERATURE ( oC) device. The operating values of a MOV need to be derated at high temperatures as shown above. Because varistors only dissipate a relatively small amount of average power they are not suitable for repetitive applications that involve substantial amounts of average power dissipation. Figure 1B - Power Derating for Phenolic Coated |
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