WOSD03/WOSD05 WOSD12 Surface Mount TVS Diodes Array for ESD Protection TRANSIENT VOLTAGE SUPPRESSORS 300 WATTS 3-12 VOLTS P b Lead(Pb)-Free FEATURES * ESD Protection to IEC 61000-4-2,30KV(Air), 30KV(Contact) * 300 Watts Peak Power Protection(tp=8/20 uS) * Excellent Clamping Capability * Low Leakage Current * Protects one I/O or Power line * Solid-state Silicon-avalanche Technology * Small Package for use in Portable Electronics * Transient Voltage Suppressors Encapsulated in a SOD-323 Package 1 2 SOD-323 MECHANICAL DATA * CASE: Molded Epoxy * TERMINAS: UL 94V-0 * WEIGHT: 0.0045 gram * MOUNTING POSITION: Any APPLICATIONS * Microprocessor based equipment * Notebooks, Desktops, and Servers * Cell Phone Handsets and Accessories * Personal Digital Assistants(PDA’s) * Portable Instrumentation * Pagers Peripherals SOD-323 Outline Dimensions Unit:mm 1 WEITRON http://www.weitron.com.tw 1/4 Rev.C 22-Jun-09 WOSD03/WOSD05 WOSD12 Maximum Ratings(TA=25˚C Unless Otherwise Noted) Symbol Votle Unit Peak Pulse Power(tP = 8/20μs) PPK 300 W ESD Voltage(HBM Waveform per IEC 61000-4-2) VESD 30 kV Lead Soldering Temperature TL 260(10s) °C Operating Temperature Range TJ -55 to +125 °C Storage Temperature Range Tstg -55 to +150 °C Characteristic ELECTRICAL CHARACTERISTICS ( T = 25˚C) WOSD03 TYPE NUMBER Symbol Min Typ Max Unit Reverse Stand-Off Voltage VRWM - - 4 V Reverse Breakdown Voltage It = 1mA Reverse Leakage Current VRWM = 3.3V Clamping Voltage IPP = 1A,tP = 8/20μs IPP = 5A,tP = 8/20μs VBR 5 - - V IR - - 20 μA VC - - 7 8.5 V Peak Pulse Current tP = 8/20μs Junction Capacitance VR = 0V,f = 1MHz IPP - - 12 A Cj - - 350 pF Max Unit Device Marking 3D WOSD05 TYPE NUMBER Symbol Min Typ Reverse Stand-Off Voltage VRWM - - 5 V Reverse Breakdown Voltage It = 1mA Reverse Leakage Current VRWM = 5V Clamping Voltage IPP = 5A,tP = 8/20μs IPP = 24A,tP = 8/20μs VBR 6 - - V IR - - 10 μA VC - - 9.8 14.5 V Peak Pulse Current tP = 8/20μs Junction Capacitance VR = 0V,f = 1MHz IPP - - 24 A Cj - - 350 pF Device Marking WEITRON http://www.weitron.com.tw ZA 2/4 Rev.C 22-Jun-09 WOSD03/WOSD05 WOSD12 ELECTRICAL CHARACTERISTICS ( TA=25˚C Unless Otherwise Noted) WOSD12 TYPE NUMBER Symbol Min Typ Max Unit Reverse Stand-Off Voltage VRWM - - 12 V Reverse Breakdown Voltage It = 1mA Reverse Leakage Current VRWM = 12V Clamping Voltage IPP = 5A,tP = 8/20μs IPP = 15A,tP = 8/20μs VBR 13.3 - - V IR - - 1 μA VC - - 19 25 V Peak Pulse Current tP = 8/20μs Junction Capacitance VR = 1V,f = 1MHz IPP - - 15 A Cj - - 90 pF Device Marking 6u , ZC ELECTRICAL CHARACTERISTICS CURVES 10 110 % of Rated Power of IPP Peak Pulse Power - Ppk(kW) 100 1 0.1 90 80 70 60 50 40 30 20 10 0.01 0.1 0 1 10 100 1000 0 25 50 75 100 125 Pulse Duration - tp(μs) Ambient Temperature - TA(˚C) Fig.1 Non-Repetitive Peak Pulse Power vs. Pulse Time Fig.2 Power Derating Curve WEITRON http://www.weitron.com.tw 3/4 150 Rev.C 22-Jun-09 WOSD03/WOSD05 WOSD12 110 Waveform Parameters tr = 8µs td = 20µs 90 80 Percent of IPP 70 e 60 30 Clamping Voltage - VC (V) 100 -t 50 40 td = IPP/2 30 20 10 0 0 5 10 15 20 25 WOSD12 20 15 10 WOSD03/WOSD05 5 0 30 0 5 10 20 25 30 Fig.4 Clamping Voltage vs. Peak Pulse Current Fig.3 Pulse Waveform 7.00 350 Forward Voltage - VF (V) 250 WOSD03/WOSD05 200 150 100 WOSD12 50 5.00 4.00 2 4 6 8 10 12 14 2.00 Fig.5 Capacitance vs. Reverse Voltage WEITRON Waveform Parameters: tr = 8µs td = 10µs 1.00 0 5 10 15 20 25 30 35 40 45 Forward Current - IF(A) Reverse Voltage - VR(V) http://www.weitron.com.tw WOSD03/WOSD05 3.00 0.00 0 WOSD12 6.00 f =1MHz 300 Capacitance - Cj (pF) 15 Peak Pulse Current - IPP(A) Time (µs) 0 Waveform Parameters tr = 8µs td = 20µs 25 Fig.6 Forward Voltage vs. Forward Current 4/4 Rev.C 22-Jun-09