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3KP45A Datasheet(PDF) 11 Page - Littelfuse |
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3KP45A Datasheet(HTML) 11 Page - Littelfuse |
11 / 146 page 7 ©2008 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to http://www.littelfuse.com for current information. Transient Voltage Suppression Diodes Surface Mount – 400W > SMAJ series SMAJ Series SMAJ Series RoHS Description Agency Approvals AGENCY AGENCY FILE NUMBER E230531 Features 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 400 W Power Dissipation on infinite heat sink at T A=50 O C P M(AV) 3.3 W Peak Forward Surge Current, 8.3ms Single Half Sine Wave (Note 3) I FSM 40 A Maximum Instantaneous Forward Voltage at 25A for Unidirectional only (Note 4) V F 3.5V/6.5 V Operating Junction and Storage Temperature Range T J, TSTG -65 to 150 °C Typical Thermal Resistance Junction to Lead R uJL 30 °C/W Typical Thermal Resistance Junction to Ambient R uJA 120 °C/W Notes: 1. Non-repetitive current pulse, per Fig.3 and derated above T A=25ºC per Fig. 2. 2. Mounted on 5.0x5.0mm copper pad to each terminal. 3. Measured on 8.3ms single half sine wave or equivalent square wave for unidirectional device only. 4. V F < 3.5V for VBR _ < 200V and V F< 6.5V for VBR _ > 201V. The SMAJ series is designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. 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. applications to optimize board space capability capability at 10 x 1000μs waveform, repetition rate (duty cycle): 0.01% typically less than 1.0ps from 0 Volts to V BR min R less than 1μA above 12V soldering: 260°C/40 seconds at terminals temperature coefficient delta V BR = 0.1% x VBR @ 25°C Underwriters Laboratory Flammability 94V-O Plated |
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