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SMD15 Datasheet(PDF) 2 Page - SeCoS Halbleitertechnologie GmbH |
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SMD15 Datasheet(HTML) 2 Page - SeCoS Halbleitertechnologie GmbH |
2 / 2 page Any changing of specification will not be informed individual http://www.SeCoSGmbH.com Elektronische Bauelemente 0. 01 0.1 1 10 0.1 1 10 100 1000 Pulse Duration - tp (us) Non-Repetitive Peak Pulse Power vs. Pulse Time SMD03 THRU SMD36 300W TVS DIODE 0 10 20 30 40 50 60 70 80 90 100 110 0 25 50 75 100 125 150 Ambient Temperature - TA (oC) Power Derating Curve 0 10 20 30 40 50 60 70 80 90 100 110 0 5 10 15 20 25 30 Time (us) e -t td = IPP /2 Wave form Paramete rs: tr = 8 s td = 20 s Pulse Waveform Applications Information Device Connection Options The SM series is designed to protect one unidirectional data or l/O lines operating at 5 to 36 volts.Connection options are as follows: • Unidirectional:Data lines are connected to pin1 and Pin 3 is connected to ground.For best results,this pin should be connected directly to a ground plane on the board.The path lengh should be kept as short as possible to minimize parasitic inductance. Circuit Board Layout Recommendations for suppres- sion of ESD. Good circuit board layout is critical for the suppression of fast rise-time transients such as ESD.The following guidelines are recommended (Refer to application note Sl99.01 for more detailed information): • Place the TVS near the input terminals or connec- tors to restrict transient coupling. • Minimize the path length between the TVS and the protected line. • Minimize all conductive loops including power and ground loops. • The ESD transient return path toground should be kept as short as possible. • Never run critical signals near board edges • Use ground planes whenever possib|e. Number 1.4 4.0 mm 1.2 0.9 0.95 2.6 Suggested Solder Pad Layout 0.9 1.4 16-Oct.-2006 Rev. B Page 2 of 2 16-Oct.-2008 Rev. D Page 2 of 2 |
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