Surge Components, Inc. 1. DESCRIPTION The SES12VD923-2U 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 SES12VD923-2U protects sensitive semiconductor components from damage or upset due to electrostatic discharge (ESD) and other voltage induced transient events. The SES12VD923-2U is available in a SOD-923 package with working voltages of 12 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) 2. FEATURE 140 Watts peak pulse power (tp=8/20us) Transient protection for data lines to IEC 61000-4-2(ESD)±25kV(air),±30kV(contact) IEC 61000-4-4(EFT) 40A(5/50ns) IEC 61000-4-5(Lightning) 24A(8/20us) 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 voltage : 12V Low leakage current Solid-state silicon-avalanche technology Small body Outline Dimensions: 1.0mm*0.6mm*0.4mm 2 95 East Jefryn Blvd Deer Park, NY 11729 (631) 595-1818 Surge Components, Inc. 3. APPLICATION Cell Phone Handsets and Accessories Personal Digital Assistants (PDA’s) Notebooks, Desktops, and Servers Portable Instrumentation Cordless Phones Digital Cameras Peripherals MP3 Players 4. ELECTRICAL CHARACTERISTICS PER LINE@25℃ ℃(UNLESS OTHERWISE SPECIFIED) Parameter Working Voltage Symbol Conditions Min. Typ. VRWM Breakdown Voltage VBR It=1mA 13.5 Reverse Leakage Current IR VRWM=12V v Forward voltage VF Max. Units 12 V V IF=10mA 1.0 uA 0.8 Clamping Voltage VC IPP=5.9A tP=8/20uS 23.7 V Junction Capacitance CJ VR=0V f=1MHz 30 pF 5. ABSOLUTE MAXIMUM RATING @25℃ ℃ Rating Symbol Value Units Peak Pulse Power(tp=8/20µs) PPP 140 Watts Maximum peak pulse current(tp=8/20µs) IPP 5.9 Amps Lead Soldering temperature TL 260(10 sec) ℃ Operating Temperature Tj -55 to +125 ℃ TSTG -55 to +150 ℃ Storage Temperature 3 95 East Jefryn Blvd Deer Park, NY 11729 (631) 595-1818 Surge Components, Inc. 6.TYPICAL CHARACTERISTICS 4 95 East Jefryn Blvd Deer Park, NY 11729 (631) 595-1818 Surge Components, Inc. 7. APPLICATION INFORMAITON ■ Device Connection options SES12VD923-2U 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 multiplayers 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. 8. PRODUCT DIMENSION NOTES: 1.DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982 2.CONTROLLING DIMENSION: MILLIMETERS. 3.MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH THICKNESS.MINIMUM LEAD THICKNESS IS THE MINIMUM THICKNESS OF BASE MATERIAL DIM MIN 0.36 0.15 0.07 0.75 0.55 0.95 0.05 A b c D E HE L 5 MILLIMETERS NOM MAX 0.40 0.43 0.20 0.25 0.12 0.17 0.80 0.85 0.60 0.65 1.00 1.05 0.10 0.15 MIN 0.014 0.006 0.003 0.030 0.022 0.037 0.002 INCHES NOM 0.016 0.008 0.005 0.031 0.024 0.039 0.004 MAX 0.017 0.010 0.007 0.033 0.026 0.041 0.006 95 East Jefryn Blvd Deer Park, NY 11729 (631) 595-1818