PESDNC3D5VB

PESDNC3D5VB ESD Protector Description The PESDNC3D5VB protects sensitive semiconductor components from damage or upset due to electrostatic discharge (ESD) and other voltage induced transient events. 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, low operating voltage. It gives designer the flexibility to protect one bi-directional line in applications where arrays are not practical. Feature Applications  350W peak pulse power per line (tP = 8/20μs)  Laptop computers  SOD-323 package  Cellular phones  Replacement for MLV(0805)  Digital cameras  Bidirectional configurations  PDAs  Protects one power or I/O port  Low clamping voltage  RoHS compliant  Transient protection for data lines to IEC 61000-4-2(ESD) ±30KV(air), ±30KV(contact); IEC 61000-4-4 (EFT) 40A (5/50ns) Mechanical Characteristics  Lead finish:100% matte Sn(Tin)  Mounting position: Any  Qualified max reflow temperature:260℃  Pure tin plating: 7 ~ 17 um  Pin flatness:≤3mil Electronics Parameter Symbol VRWM IR VBR Rev.06.7 Parameter Peak Reverse Working Voltage I Reverse Leakage Current @ VRWM IPP Breakdown Voltage @ IT IT Test Current IPP Maximum Reverse Peak Pulse Current VC Clamping Voltage @ IPP PPP Peak Pulse Power CJ Junction Capacitance IF Forward Current VF Forward Voltage @ IF VC VBR VRWM IT IR V IR IT VRWM VBR VC IPP 1 www.prisemi.com ESD Protector PESDNC3D5VB Electrical characteristics per line@25℃( unless otherwise specified) Parameter Symbol Peak Reverse Working Voltage Conditions Min. Typ. Max. Units 5 V 8 V 1.0 μA VRWM Breakdown Voltage VBR It = 1mA Reverse Leakage Current IR VRWM = 5V T=25℃ Clamping Voltage VC IPP = 1A tP = 8/20μs 9.2 V Clamping Voltage VC IPP=5A tP = 8/20μs 11 V Clamping Voltage VC IPP=24A tP = 8/20μs 23 V Junction Capacitance Cj VR=0V 6 f = 1MHz 85 pF Absolute maximum rating@25℃ Rating Symbol Value Units Unidirectional Peak Pulse Power Ppp 350 W (tp=8/20μＳ) Operating Temperature TJ -55 to +150 ℃ TSTG -55 to +150 ℃ Storage Temperature tf=8μs 100 100 80 60 % Of Rated Power IPP – Peak Pulse Current - % of IPP Typical Characteristics tP =20μs(IPP /2) 40 20 0 80 60 40 20 0 5 10 15 20 25 0 30 t - Time -μs 25 50 75 100 125 150 TL – Lead Temperature - ℃ Fig 1.Pulse Waveform Rev.06.7 0 Fig 2.Power Derating Curve 2 www.prisemi.com ESD Protector PESDNC3D5VB 30 10000 Pulse waveform: tp=8/20us VC-Clamping Voltage (V) 24 Peak Pulse Power (W) 1000 18 12 100 6 0 10 0 5 10 15 20 IPP-Peak pulse current(A) 25 30 Fig 3. Clamping voltage vs. Peak pulse current 1 10 100 Pulse Duration(us) 1000 Fig 4. Non Repetitive Peak Pulse Power vs. Pulse time Solder Reflow Recommendation Peak Temp=257℃, Ramp Rate=0.802deg. ℃/sec 280 240 200 160 120 80 40 0 0 30 60 90 120 150 180 210 240 270 300 330 360 390 420 450 480 Time (sec) PCB Design For TVS diodes a low-ohmic and low-inductive path to chassis earth is absolutely mandatory in order to achieve good ESD protection. Novices in the area of ESD protection should take following suggestions to heart:  Do not use stubs, but place the cathode of the TVS diode directly on the signal trace.  Do not make false economies and save copper for the ground connection.  Place via holes to ground as close as possible to the anode of the TVS diode.  Use as many via holes as possible for the ground connection.  Keep the length of via holes in mind! The longer the more inductance they will have. Rev.06.7 3 www.prisemi.com ESD Protector PESDNC3D5VB Product dimension (SOD-323) C Dim A E B F D H Inches Millimeters MIN MAX MIN MAX A 0.063 0.075 1.60 1.90 B 0.045 0.057 1.15 1.45 C 0.090 0.106 2.30 2.70 D 0.031 0.043 0.80 1.10 E 0.010 0.01 0.25 0.40 F 0.004 0.007 0.09 0.18 H 0.000 0.004 0.00 0.10 3.00 0.90 0.80 Unit:mm Suggested PCB Layout Marking information 5C Ordering information Device Package Reel Shipping PESDNC3D5VB SOD-323 (Pb-Free) 7" 3000 / Tape & Reel Rev.06.7 4 www.prisemi.com ESD Protector PESDNC3D5VB 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.06.7 5 www.prisemi.com