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LCE54A Datasheet(PDF) 39 Page - Littelfuse |
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LCE54A Datasheet(HTML) 39 Page - Littelfuse |
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39 / 146 page  35 ©2008 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to http://www.littelfuse.com for current information. Transient Voltage Suppression Diodes 1KSMB Series Surface Mount – 1000W > 1KSMB series The 1KSMB series is designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. Description 1KSMB Series RoHS Agency Approvals Features applications to optimize board space temperature coefficient Δ V BR = 0.1% × VBR@25°C junction capability at 10×1000μs waveform, repetition rate (duty cycles):0.01% typically less than 1.0ps from 0V to BV min capability resistance R less than 1μA above 12V soldering guaranteed: 260°C/40 seconds at terminals Underwriters Laboratory Flammability 94V-O Plated Voltage from 6.8V to 160V specially designed for automotive applications in compact package: bridges the gap between 600W and 1.5KW Applications 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. Maximum Ratings and Thermal Characteristics (T A=25 O C unless otherwise noted) Parameter Symbol Value Unit Peak Pulse Power Dissipation at T A=25ºC by 10x1000μs waveform (Fig.1)(Note 1), (Note 2) P PPM 1000 W Power Dissipation on infinite heat sink at T A=50 O C P M(AV) 5.0 W Peak Forward Surge Current, 8.3ms Single Half Sine Wave (Note 3) I FSM 100 A Maximum Instantaneous Forward Voltage at 50A for Unidirectional only (Note 4) V F 3.5V/5.0 V Operating Junction and Storage Temperature Range T J, TSTG -65 to 150 °C Typical Thermal Resistance Junction to Lead R uJL 20 °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. Mounted on copper pad area of 0.2x0.2” (5.0 x 5.0mm) to each terminal. 3. Measured on 8.3ms single half sine wave or equivalent square wave for unidirectional device only, duty cycle=4 per minute maximum. 4. V F<3.5V for VBR _ < 50V and V F<5.0V for VBR _ > 51V. AGENCY AGENCY FILE NUMBER E128662 |
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