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TBU-KE025-300-WH Datasheet(PDF) 1 Page - Bourns Electronic Solutions |
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TBU-KE025-300-WH Datasheet(HTML) 1 Page - Bourns Electronic Solutions |
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1 / 6 page  Features ■ Superior circuit protection ■ Overcurrent and overvoltage protection ■ Blocks surges up to rated limits ■ High-speed performance ■ Small SMT package ■ RoHS compliant* ■ Agency recognition: Applications ■ Set top box LNB ports ■ Protection modules and dongles ■ Process control equipment ■ Test and measurement equipment ■ General electronics TBU-KE Series - TBU® High-Speed Protectors *RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. General Information The TBU-KE Series of Bourns® TBU® (Transient Blocking Unit) products are very low capacitance unidirectional high-speed surge protection components designed to protect against faults caused by short circuits, AC power cross, induction and lightning surges. The TBU-KE is a unidirectional TBU® device: the TBU® protector will trip in less than 1 μs when the current reaches the maximum value in one direction only, that is when Pin 1 is positive in voltage with respect to Pin 2. No current limiting exists in the oppo- site polarity, and the TBU® protector appears as resistive in nature. The reverse current should not exceed the maximum trigger current level of the TBU® device. An external diode may be used to prevent reverse current in DC biased applications. The TBU® protector blocks surges and provides an effective barrier behind which sensi- tive electronics will not be exposed to large voltages or currents during surge events. After the surge, the TBU® device resets when the voltage across the TBU® device falls to the Vreset level. The TBU ® device will automatically reset on lines which have no DC bias or have DC bias below Vreset (such as unpowered signal lines). The TBU® device is provided in a surface mount DFN package and meets industry standard requirements such as RoHS and Pb Free solder reflow profiles. Agency Approval Description UL File Number: E315805 Absolute Maximum Ratings (@ TA = 25 °C Unless Otherwise Noted) Symbol Parameter Part Number Value Unit Vimp Peak impulse voltage withstand with duration less than 10 ms TBU-KE025-xxx-WH TBU-KE040-xxx-WH TBU-KE050-xxx-WH 250 400 500 V Vrms Continuous A.C. RMS voltage TBU-KE025-xxx-WH TBU-KE040-xxx-WH TBU-KE050-xxx-WH 100 200 250 V Top Operating temperature range -40 to +125 °C Tstg Storage temperature range -65 to +150 °C E2550 0072 TBU® Device Line Side 12 Load Side Asia-Pacific: Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116 Europe: Tel: +41-41 768 5555 • Fax: +41-41 768 5510 The Americas: Tel: +1-951 781-5500 • Fax: +1-951 781-5700 www.bourns.com |
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