SES Series Ultra Small ESD Protector SES5VD923-2U ROHS Description The SES5VD923-2U ESD protector is designed to replace multilayer varistors (MLVs) in portable applications such as cell phones, notebook computers, and PDA’s. They feature large cross-sectional area junctions for conducting high transient currents, offer desirable electrical characteristics for board level protection, such as fast response time, lower operating voltage, lower clamping voltage and no device degradation when compared to MLVs. The SES5VD923-2U protects sensitive semiconductor components from damage or upset due to electrostatic discharge (ESD) and other voltage induced transient events. The SES5VD923-2U is available in a SOD-923 package with working voltages of 5 volt. It gives designer the flexibility to protect one unidirectional line in applications where arrays are not practical. Additionally, it may be “sprinkled” around the board in applications where board space is at a premium. It may be used to meet the ESD immunity requirements of IEC 61000-4-2, Level 4 (± 15kV air, ±8kV contact discharge) Feature 100 Watts peak pulse power (tp = 8/20μs) Transient protection for data lines to IEC 61000-4-2 (ESD) ±25kV (air), ±10kV (contact) IEC 61000-4-4 (EFT) 40A (5/50ns) IEC 61000-4-5 (Lightning) 24A (8/20μs) Small package for use in portable electronics Suitable replacement for MLV’s in ESD protection applications Protect one I/O or power line Low clamping voltage Stand off voltages: 5V Low leakage current Solid-state silicon-avalanche technology Small Body Outline Dimensions: 0.8mm×0.6mm×0.5mm Equivalent to 0402 package Applications Cell Phone Handsets and Accessories Personal Digital Assistants (PDA’s) Notebooks, Desktops, and Servers Portable Instrumentation Cordless Phones Digital Cameras Peripherals MP3 Players Ultra Small ESD Protector www.x-jiazhi.com SES Series Ultra Small ESD Protector SES5VD923-2U ROHS Electrical characteristics per line@25℃(unless otherwise specified) Parameter Symbol Conditions Min. Typ. Max. Units Working Voltage VRWM 5 V Breakdown voltage VBR It =1mA 6.8 7.2 V Reverse Leakage Current IR VRWM =5V T=25℃ 0.005 1 μA Forward Voltage VF IF =10mA 0.8 Clamping Voltage VC IPP=5A tP = 8/20μS 9.8 V Clamping Voltage VC IPP=16A tP = 8/20μS 12.5 V Junction Capacitance Cj VR=0V f = 1MHz 40 55 pF Junction Capacitance Cj VR=2.5V f = 1MHz 30 40 pF 6 V Absolute maximum rating @25℃ Rating Symbol Value Units Peak Pulse Power ( tP = 8/20μS ) Ppp 100 W Maximum Peak Pulse Current ( tP = 8/20μS ) Ipp 16 A Lead Soldering Temperature TL 260 (10 sec) ℃ Operating Temperature TJ -55 to +125 ℃ TSTG -55 to +150 ℃ Storage Temperature Applications Information Device Connection Options SES5VD923-2U is designed to protect one data, I/O, or power supply line. The device is unidirectional and may be used on lines where the signal polarity is above ground. The cathode dot should be placed towards the line that is to be protected. Circuit Board Layout Recommendations for Suppression of ESD. Good circuit board layout is critical for the suppression of ESD induced transients. The following guidelines are recommended: Place the TVS near the input terminals or connectors 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 to ground should be kept as short as possible. Never run critical signals near board edges. Use ground planes whenever possible. for multilayer printed-circuit boards, use ground vias. Keep parallel signal paths to a minimum. Avoid running protection conductors in parallel with unprotected conductor. Minimize all printed-circuit board conductive loops including power and ground loops. Avoid using shared transient return paths to a common ground point. Ultra Small ESD Protector 2 www.x-jiazhi.com SES Series Ultra Small ESD Protector SES5VD923-2U ROHS Typical Characteristics Ultra Small ESD Protector 3 www.x-jiazhi.com SES Series Ultra Small ESD Protector SES5VD923-2U ROHS Product dimension Revision History Revision Date Changes 1.0 2008-7-3 - Website:http://www.x-jiazhi.com For additional information, please contact your local Sales Representative. ©Copyright 2005, Wealth Crown . ® is a registered trademark of Wealth Crown All rights reserved. Ultra Small ESD Protector 4 www.x-jiazhi.com