PESDNC9D5VU Ultra Small ESD Protector Description The PESDNC9D5VU 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 PESDNC9D5VU protects sensitive semiconductor components from damage or upset due to electrostatic discharge (ESD) and other voltage induced transient events. The PESDNC9D5VU 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 ¾ 100 Watts peak pulse power (tp = 8/20μs) ¾ 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) ¾ Small package for use in portable electronics ¾ Suitable replacement for MLVs in ESD protection applications ¾ Protect one I/O or power line ¾ Low clamping voltage ¾ Stand off voltages: 5V ¾ Low leakage current ¾ Solid-state silicon-avalanche technology ¾ Small Body Outline Dimensions: 0.8mm×0.6mm×0.5mm ¾ Equivalent to 0402 package Applications ¾ Cell Phone Handsets and Accessories ¾ Personal Digital Assistants (PDA’s) ¾ Notebooks, Desktops, and Servers ¾ Portable Instrumentation ¾ Cordless Phones ¾ Digital Cameras ¾ Peripherals ¾ MP3 Players Rev.04 1 www.prisemi.com Ultra Small ESD Protector PESDNC9D5VU 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 0.005 1 μA Forward Voltage VF IF =10mA 0.8 Clamping Voltage VC IPP=1A tP = 8/20μS 9.0 V Clamping Voltage VC IPP=5A tP = 8/20μS 11.0 V Junction Capacitance Cj 30 40 pF Junction Capacitance Cj 22 30 pF 6 VR=0V f = 1MHz VR=2.5V f = 1MHz V Absolute maximum rating@25℃ Rating Symbol Value Units Peak Pulse Power ( tP = 8/20μS ) Ppp 100 W Lead Soldering Temperature TL 260 (10 sec) ℃ Operating Temperature TJ -55 to +125 ℃ TSTG -55 to +150 ℃ Storage Temperature Applications Information ¾ Device Connection Options z PESDNC9D5VU 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. ¾ Circuit Board Layout Recommendations for Suppression of ESD. z Good circuit board layout is critical for the suppression of ESD induced transients. The following guidelines are recommended: Rev.04 z Place the TVS near the input terminals or connectors to restrict transient coupling. z Minimize the path length between the TVS and the protected line. z Minimize all conductive loops including power and ground loops. z The ESD transient return path to ground should be kept as short as possible. z Never run critical signals near board edges. z Use ground planes whenever possible, for multilayer printed-circuit boards, use ground vias. z Keep parallel signal paths to a minimum. z Avoid running protection conductors in parallel with unprotected conductor. z Minimize all printed-circuit board conductive loops including power and ground loops. z Avoid using shared transient return paths to a common ground point. 2 www.prisemi.com Ultra Small ESD Protector PESDNC9D5VU Typical Characteristics Product dimension Rev.03 3 www.prisemi.com Ultra Small ESD Protector PESDNC9D5VU IMPORTANT NOTICE and are registered trademarks of Prisemi Electronics Co., Ltd (Prisemi) ,Prisemi reserves the right to make changes without further notice to any products herein. Prisemi makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Prisemi assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in Prisemi data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Prisemi does not convey any license under its patent rights nor the rights of others. The products listed in this document are designed to be used with ordinary electronic equipment or devices, Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. Website: http://www.prisemi.com For additional information, please contact your local Sales Representative. ©Copyright 2009, Prisemi Electronics is a registered trademark of Prisemi Electronics. All rights are reserved. Rev.03 4 www.prisemi.com