UGUARD2804 SMCDIODE | Alldatasheet
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DataSheetN1867REV.A China - Germany - Korea - Singapore - UnitedStates http://www.smc-diodes.com - sales@smc-diodes.com uGuard2804 uGuard2804TVSArrays Forinformationontapeandreelspecifications,includingpartorientationandtapesizes,pleaserefertoourtapeandreelpackaging specification.
Description
Features MechanicalCharacteristics
Applications
uGuard2804 SO-8(Pb-Free) 3000pcs/reel The uGuard2804 TVS diode is a low capacitance TVS (Transient Voltage Suppressor) device specifically designed to meet the EOS (Electrical Over-Stress) protection requirements of Gigabit Ethernet interfaces. The uGuard2804 is designed to protect sensitive PHY (physical layer) chips from damage due to EOS events such as electrostatic discharge (ESD), lightning, electrical fast transients (EFT), and cable discharge events (CDE). The uGuard2804 is constructed with a proprietary process that ensures low leakage (“idle”) current and low junction capacitance when used in low voltage applications. The device has minimal change in junction capacitance, as a function of bias voltage variations, which facilitates stable operation on GbE lines and interfaces. The uGuard2804 is in an 8-pin SO-8 package with lead-free matte tin lead finish. The combination of low clamping voltage, high surge capability, low “idle” current and low capacitance makes the uGuard2804 an ideal solution for protecting sensitive GbE systems in accordance with the transient protection immunityrequirementsofGR-1089. SO-8 HighESDwithstandVoltage:±15kV(air),±8kV (contact)perIEC61000-4-2 Multiplesurgeeventcapability(1000events)perIEC 61000-4-2Level4 Highpeakpowercapability(120W) Flow-throughdesignminimizesparasiticinductance forreducedvoltageovershoot Protectstwolinepairs Lowreverse“idle”current:30nAtypical(VR=2.8V) Lowvariationincapacitancevs.biasvoltage: 1.3pFTypical(VR=0to2.8V) Lowworkingvoltage:2.8V Solid-statesilicondesign–noinherentwearout mechanism Industrystandardpackagefootprint JEDECSO-8package Pb-Free,HalogenFree,RoHS/WEEECompliant LeadFinish:Mattetin Moldingcompoundflammabilityrating:UL94V-0 Marking:Markingcode,datecode Packaging:TapeandReel 10/100/1000Ethernet Integratedmagnetics/RJ-45connectors LAN/WAN Equipment Userinterface IntegratedCircuit(IC)Vbus Peripheralpowerandaccessoryports
DataSheetN1867REV.A China - Germany - Korea - Singapore - UnitedStates http://www.smc-diodes.com - sales@smc-diodes.com uGuard2804 * Pulsewidth <300µs, duty cycle<2% MaximumRatings@TA=25°Cunlessotherwisespecified Parameter Symbol Value Units PeakPulsePower(tp=8/20μs) Ppk 120 W PeakPulseCurrent(tp=8/20μs) IPP 10 A ESDper IEC61000-4-2(Air) ESDper IEC61000-4-2(Contact) VESD +/-15 +/- 8 KV OperatingJunction TemperatureRange TJ -40to+125 °C StorageTemperatureRange TSTG -55to+150 °C ElectricalCharacteristics Characteristics Symbol Condition Min. Typ. Max. Units ReverseBreakdownVoltage VBR @IR =50mA 3.5 - 4.3 V ReverseStand-OffVoltage VRWM - - - 2.8 V ReverseLeakageCurrent IR @VRWM =2.8V - 0.03 0.05 μA ClampingVoltage VC @IPP =1A,tp=8/20μs - - 6 V ClampingVoltage VC @IPP =10A,tp=8/20μs - - 12 V Variationincapacitancewithreversebias @VR =0to2.8V,fSIG =1MHz Pins1,8to2,7and pins3,6to4,5 - 1.3 - pF JunctionCapacitance Cj @VR =2.8V,fSIG =1MHz Pins1,8to2,7and pins3,6to4,5 - 3.2 6 pF RatingsandCharacteristicsCurves Fig.1Typical ClampingVoltage vs.PeakPulse Current Waveform Parameters: tr=8μs td=20μs Fig.2JunctionCapacitancevs.ReverseVoltage f=1MHz
DataSheetN1867REV.A China - Germany - Korea - Singapore - UnitedStates http://www.smc-diodes.com - sales@smc-diodes.com uGuard2804 uGuard2804 CircuitDiagram PartNameInformation MarkingDiagram MechanicalDimensionsSO-8 SYMBOL Millimeters Inches MIN. MAX. MIN. MAX. A 1.350 1.750 0.053 0.069 A1 0.100 0.250 0.004 0.010 A2 1.350 1.550 0.053 0.061 b 0.330 0.510 0.013 0.020 c 0.170 0.250 0.007 0.010 D 4.800 5.000 0.189 0.197 e 1.270(BSC) 0.050(BSC) E 5.800 6.200 0.228 0.244 E1 3.800 4.000 0.150 0.157 L 0.400 1.270 0.016 0.031 θ 0° 8° 0° 8° CarrierTape&ReelSpecificationSO-8 The uGuard2804 is designed to protect four high-speed data lines (two differential pairs) from transient over- voltages which result from lightning and ESD. Data line inputs/outputs are connected at pins 1 and 8, 2 and 7, 3 and6,and4and5. WhereXXXXX isYYWWL Guard2804= Part Name YY =Year WW =Week L =Lot Number Cautions：Molding resin EpoxyresinUL:94V-0 TVSArraysProduct MaxStand-offVoltage 28=2.8VRWM(Volts) Numberoflines 04=4DataLines
DataSheetN1867REV.A China - Germany - Korea - Singapore - UnitedStates http://www.smc-diodes.com - sales@smc-diodes.com uGuard2804 DISCLAIMER: 1-Theinformationgivenherein,includingthespecificationsanddimensions,issubjecttochangewithoutpriornoticetoimproveproduct characteristics.Beforeordering,purchasersareadvisedtocontacttheSMC-SangdestMicroelectronics(Nanjing)Co.,Ltdsales departmentforthelatestversionofthedatasheet(s). 2-Incaseswhereextremelyhighreliabilityisrequired(suchasuseinnuclearpowercontrol,aerospaceandaviation,trafficequipment, medicalequipment,andsafetyequipment),safetyshouldbeensuredbyusingsemiconductordevicesthatfeatureassuredsafetyorby meansofusers’fail-safeprecautionsorotherarrangement. 3-InnoeventshallSMC-SangdestMicroelectronics(Nanjing)Co.,Ltdbeliableforanydamagesthatmayresultfromanaccidentor anyothercauseduringoperationoftheuser’sunitsaccordingtothedatasheet(s).SMC-SangdestMicroelectronics(Nanjing)Co.,Ltd assumesnoresponsibilityforanyintellectualpropertyclaimsoranyotherproblemsthatmayresultfromapplicationsofinformation, productsorcircuitsdescribedinthedatasheets. 4-InnoeventshallSMC-SangdestMicroelectronics(Nanjing)Co.,Ltdbeliableforanyfailureinasemiconductordeviceorany secondarydamageresultingfromuseatavalueexceedingtheabsolutemaximumrating. 5-Nolicenseisgrantedbythedatasheet(s)underanypatentsorotherrightsofanythirdpartyorSMC-SangdestMicroelectronics (Nanjing)Co.,Ltd. 6-Thedatasheet(s)maynotbereproducedorduplicated,inanyform,inwholeorpart,withouttheexpressedwrittenpermissionofSMC -SangdestMicroelectronics(Nanjing)Co.,Ltd. 7-Theproducts(technologies)describedinthedatasheet(s)arenottobeprovidedtoanypartywhosepurposeintheirapplicationwill hindermaintenanceofinternationalpeaceandsafetynoraretheytobeappliedtothatpurposebytheirdirectpurchasersoranythird party.Whenexportingtheseproducts(technologies),thenecessaryproceduresaretobetakeninaccordancewithrelatedlawsand regulations..