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P4KE33A-B Datasheet(PDF) 1 Page - Littelfuse |
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P4KE33A-B Datasheet(HTML) 1 Page - Littelfuse |
1 / 5 page 65 ©2009 Littelfuse, Inc. Specifications are subject to change without notice. Transient Voltage Suppression Diodes Revision: January 09, 2009 Axial Leaded – 400W > P4KE series P4KE Series Please refer to http://www.Littelfuse.com/series/P4KE.html for current information. P4KE Series TVS devices are ideal for the protection of I/O interfaces, V CC bus and other vulnerable circuits used in telecom, computer, industrial and consumer electronic applications. Applications Features The P4KE Series is designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. Description Parameter Symbol Value Unit Peak Pulse Power Dissipation by 10x1000μs test waveform (Fig.1) (Note 1) P PPM 400 W Steady State Power Dissipation on inifinite heat sink at T L=75ºC (Fig. 5) P D 1.5 W Peak Forward Surge Current, 8.3ms Single Half Sine Wave Unidirectional only (Note 2) I FSM 40 A Maximum Instantaneous Forward Voltage at 25A for Unidirectional only (Note 3) V F 3.5/5.0 V Operating Junction and Storage Temperature Range T J, TSTG -55 to 175 °C Typical Thermal Resistance Junction to Lead R uJL 60 °C/W Typical Thermal Resistance Junction to Ambient R uJA 100 °C/W Notes: 1. Non-repetitive current pulse , per Fig. 3 and derated above T A = 25 O C per Fig. 2. 2. Measured on 8.3ms single half sine wave or equivalent square wave, duty cycle=4 per minute maximum. 3. V F<3.5V for devices of VBR _ < 200V and V F<5.0V for devices of VBR _ > 201V. Maximum Ratings and Thermal Characteristics (T A=25 O C unless otherwise noted) Agency Approvals temperature coefficient ΔV BR = 0.1% x VBR@25°C x ΔT junction in DO-41 Package capability at 10×1000μs waveform, repetition rate (duty cycles):0.01% typically less than 1.0ps from 0 Volts to BV min capability resistance R less than 1μA above 13V soldering guaranteed: 260°C/40 seconds / 0.375”,(9.5mm) lead length, 5 lbs., (2.3kg) tension Underwriters Laboratory Flammability classification 94V-O AGENCY AGENCY FILE NUMBER E230531 RoHS |
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