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V39ZA1P Datasheet(PDF) 4 Page - Littelfuse |
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V39ZA1P Datasheet(HTML) 4 Page - Littelfuse |
4 / 13 page Varistor Products ©2010 Littelfuse, Inc. Revision: September 22, 2010 ZA Varistor Series Radial Lead Varistors > ZA Series Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/za.html for current information. V360ZA05(P) - V750ZA05(P) 3000 2000 1000 500 PEAK AMPERES (A) 0.01 0.1 1 10 100 1000 0.001 0.0001 V750ZA05(P) V715ZA05(P) V680ZA05(P) V620ZA05(P) V470ZA05(P) V430ZA05(P) V390ZA05(P) V360ZA05(P) MAX CLAMPING VOLTAGE MODEL SIZE 5mm 360 TO 750VN(DC) RATING TA = -55 oC TO 85oC Should transients occur in rapid succession, the average power dissipation required is simply the energy (watt-seconds) per pulse times the number of pulses per second. The power so developed must be within the specifications shown on the Device Ratings and Specifications Table for the specific device. Furthermore, the operating values need to be derated at high temperatures as shown in the diagram above. Because varistors can only dissipate a relatively small amount of average power they are, therefore, not suitable for repetitive applications that involve substantial amounts of average power dissipation. Power Dissipation Ratings 600 500 400 300 200 100 90 80 70 60 50 40 30 20 PEAK AMPERES (A) 10-2 10-1 100 101 102 103 MAX CLAMPINGVOLTAGE MODEL SIZE 5mm 8 TO 68VN(DC) RATING TA = -55 oC TO 85oC 10 V68ZA05(P) V56ZA05(P) V47ZA05(P) V39ZA05(P) V33ZA05(P) V27ZA05(P) V22ZA05(P) V18ZA05(P) V12ZA05(P) V8ZA05(P) 10-3 Maximum Clamping Voltage for 5mm Parts Peak Pulse Current Test Waveform V8ZA05(P) - V68ZA05(P) V82ZA05(P) - V33ZA05(P) 2000 1000 500 200 PEAK AMPERES (A) 0.01 0.1 1 10 100 1000 100 0.001 0.0001 V100ZA05(P) V82ZA05(P) MAX CLAMPING VOLTAGE MODEL SIZE 5mm 82 TO 330VN(DC) RATING TA = -55 oC TO 85oC V330ZA05(P) V270ZA05(P) V240ZA05(P) V220ZA05(P) V205ZA05(P) V180ZA05(P) V150ZA05(P) V120ZA05(P) 0 1 T 1 = Rise Time = 1.25 x T T 2 = Decay Time Example - For an 8/20 μ 8μs = T 1 = Rise Time 20μs = T 2 = Decay Time 100 90 80 70 60 50 40 30 20 10 0 -55 50 60 70 80 90 100 110 120 130 140 150 AMBIENT TEMPERATURE ( oC) 100 90 50 10 O1 T T1 T2 TIME Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 |
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