Varistor Products Thermally Protected Varistors > SMOV25S Series RoHS SMOV25S Varistor Series 5IF-JUUFMGVTF4.07UIFSNBMMZQSPUFDUFEWBSJTUPSJTBTFMG QSPUFDUFEEFWJDF*UDPOTJTUTPGBNNTRVBSFWBSJTUPSXJUIBO JOUFHSBMUIFSNBMEJTDPOOFDUEFTJHOFEUPPQFOJOUIFFWFOUPG PWFSIFBUJOHEVFUPBCOPSNBMPWFSWPMUBHFBTPVUMJOFEJO6- SEFEJUJPO5IF4.07IFMQTGBDJMJUBUF41%NPEVMFDPNQMJBODF UP6-BOEPGGFSTRVJDLUIFSNBMSFTQPOTFEVFUPUIFDMPTF QSPYJNJUZPGUIFJOUFHSBUFEUIFSNBMFMFNFOUUPUIF.07CPEZ 5IJTDPOmHVSBUJPOBMTPPGGFSTMPXFSJOEVDUBODFUIBONPTUEJTDSFFU TPMVUJPOTSFTVMUJOHJOJNQSPWFEDMBNQJOHQFSGPSNBODFUPGBTUPWFS WPMUBHFUSBOTJFOUT Agency Approvals Agency Agency File Number 5IFEFWJDFIBTBTFQBSBUFNJDSPTXJUDIXIJDIDBOCFVTFEUP JOEJDBUFUIBUUIF.07IBTCFFOEJTDPOOFDUFEGSPNUIFDJSDVJU 5IJTTFQBSBUFTXJUDINBLFTUIFNPOJUPSJOHDJSDVJUSZDPNQMFUFMZ JTPMBUFEGSPNUIFNBJOQPXFSXIJDIFOTVSFTJOEJDBUPSDJSDVJU TBGFUZBOETJNQMJmFTUIFDVTUPNFSTDJSDVJUEFTJHO & Features t .BYJNVNTJOHMF TVSHFDBQBCJMJUZL" XBWFTIBQF t /PNJOBM%JTDIBSHF $VSSFOU7BMVFL" t *OUFSNFEJBUFDVSSFOU SBUJOH"" t 3FDPHOJ[FEUP6- SEFEJUJPO t -FBE'SFFBOE 3P)4DPNQMJBOU t *OUFHSBUFENJDSP TXJUDIGPSJOEJDBUJPO DJSDVJUSZEFTJHO t ¡$UP¡$PQFSBUJOH UFNQFSBUVSF Applications t 41%BQQMJDBUJPOT t "$%$EJTUSJCVUJPO t *5%BUBDFOUFS t 1PXFSTVQQMJFS t 5FMFDPNNVOJDBUJPO ©2012 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/smov25s.html for current information. SMOV25S Varistor Series Revision: May 24, 2012 SMOV25S Series Description Varistor Products Thermally Protected Varistors > SMOV25S Series Absolute Maximum Ratings t'PSSBUJOHTPGJOEJWJEVBMNFNCFSTPGBTFSJFTTFF%FWJDF3BUJOHTBOE4QFDJmDBUJPOTDIBSU Continous: Steady State Applied Voltage: %$7PMUBHF3BOHF7.%$ "$7PMUBHF3BOHF7."$ 3.4 Transient: /PO3FQFUJUJWF4VSHF$VSSFOUT8BWFGPSN*5. /PO3FQFUJUJWF&OFSHZ$BQBCJMJUZNT8BWFGPSN85. SMOV25S Series Units UP UP 7 7 " UP J 0QFSBUJOH"NCJFOU5FNQFSBUVSF3BOHF5" UP ¡$ 4UPSBHF5FNQFSBUVSF3BOHF545( UP ¡$ )J1PU&ODBQTVMBUJPO*TPMBUJPO7PMUBHF$BQBCJMJUZ 7 *TPMBUJPO7PMUBHF$BQBCJMJUZXIFOUIFUIFSNBMEJTDPOOFDUPQFOT 7 .æ )PVTJOH*OTVMBUJPO3FTJTUBODF $"65*0/4USFTTFTBCPWFUIPTFMJTUFEJOi"CTPMVUF.BYJNVN3BUJOHTwNBZDBVTFQFSNBOFOUEBNBHFUPUIFEFWJDF5IJTJTBTUSFTTPOMZSBUJOHBOEPQFSBUJPO PGUIFEFWJDFBUUIFTFPSBOZPUIFSDPOEJUJPOTBCPWFUIPTFJOEJDBUFEJOUIFPQFSBUJPOBMTFDUJPOTPGUIJTTQFDJmDBUJPOJTOPUJNQMJFE Device Ratings & Specifications Maximum Rating (75°C) Continuous Part Number Specifications (25 °C) Transient AC Volts DC Volts Energy 2ms V."$ V.%$ W5. Peak Surge Current 8/20μs Nominal Discharge Current (In) Varistor Voltage at 1mA Test Current Maximum Clamping Voltage 8/20μs Typical Capacitance f = 1MHz (V) (V) (J) I5. 1 × Pulse (A) 4.074.1 4.074.1 4.074.1 4.074.1 4.074.1 4.074.1 4.074.1 4.074.1 4.074.1 4.074.1 4.074.1 4.074.1 4.074.1 In (A) V/%$ Min V/%$ Max (V) (V) (A) (pF) Vc I1, C "WFSBHFQPXFSEJTTJQBUJPOPGUSBOTJFOUTTIPVMEOPUFYDFFEXBUUT 4BNFSBUJOHTBOETQFDJmDBUJPOTBQQMZUP/PO*TPMBUFE.POJUPSFE4XJUDIBMUFSOBUJWFEFTJHO3FQMBDF.XJUI/JOUIFQBSUOVNCFSFH4.074/1 3FGFSUP1BSU/VNCFS4ZTUFNBUUIFFOEPGUIJTEPDVNFOU ©2012 Littelfuse, Inc. SMOV25S Varistor Series Revision: May 24, 2012 Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/smov25s.html for current information. Varistor Products Thermal Characteristics Peak Current & Energy Derating Curve 5ZQJDBMUJNFUPPQFODJSDVJUVOEFS6-"COPSNBM 0WFSWPMUBHF-JNJUFE$VSSFOU5FTU 'PSBQQMJDBUJPOTFYDFFEJOH$BNCJFOUUFNQFSBUVSFUIF QFBLTVSHFDVSSFOUBOEFOFSHZSBUJOHTNVTUCFSFEVDFE BTTIPXOCFMPX 10 PERCENT OF RATED VALUE 100 Current (A) Typical 10 A 5A 1 2.5 A 0.5 A 80 60 40 20 0 - 45 50 60 80 70 90 100 110 120 130 AMBIENT TEMPERATURE (ºC) 0.1 1 10 100 Figure 2 Figure 1 Transient V–I Characteristic Curves 10000 750 625 Maximum Peak Voltage (V) 550 510 460 420 385 440 1000 320 275 140 115 150 175 230 300 250 130 100 10μA 100μA 1mA 10mA Figure 3 100mA 1A ©2012 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/smov25s.html for current information. 10A 100A 1000A 10000A 100000A Peak Current SMOV25S Varistor Series Revision: May 24, 2012 SMOV25S Series Thermally Protected Varistors > SMOV25S Series Varistor Products Thermally Protected Varistors > SMOV25S Series SMOV25S Pulse Rating Curve 100000 1 2 10000 15 10 2 10 3 1000 4 10 5 10 10 100 6 ∞ 10 1 10 100 1000 Figure 4 10000 Impulse Duration (secs) Wave Solder Profile #FDBVTFUIF4.0744FSJFTWBSJTUPSTDPOUBJOBUIFSNBMQSPUFD UJPOEFWJDFDBSFNVTUCFUBLFOXIFOTPMEFSJOHUIFEFWJDFTJOUP QMBDF5XPTPMEFSJOHNFUIPETBSFQPTTJCMF'JSTUMZIBOETPMEFSJOH *UJTSFDPNNFOEFEUPIFBUoTJOLUIFMFBETPGUIFEFWJDF4FDPOEMZ XBWFoTPMEFSJOH*UJTDSJUJDBMMZJNQPSUBOUUIBUBMMQSFIFBUTUBHFBOE UIFTPMEFSCBUIUFNQFSBUVSFTBSFSJHJEMZDPOUSPMMFE Lead–free Profile Non Lead–free Profile 300 300 250 TEMPERATURE (ºC) 250 TEMPERATURE (ºC) Maximum Wave 260C Maximum Wave 240C 200 150 100 200 150 100 50 50 0 0 0 0.5 1 1.5 2 2.5 3 3.5 TIME(MINUTES) Figure 5 0.5 1 1.5 2 2.5 3 3.5 4 TIME(MINUTES) Figure 6 Environmental Specifications Physical Specifications Lead Material 0 4 Operating/Storage Temp. ¡$UP¡$¡$UP¡$ Passive Aging ¡$IPVST UZQJDBMWPMUBHFDIBOHF 5JOoDPBUFE$PQQFSXJSF Soldering Characteristics 4PMEFSBCJMJUZQFS.*-45% .FUIPE& Humidity Aging ¡$3)IPVST UZQJDBMWPMUBHFDIBOHF Insulating Material $VSFEnBNFSFUBSEBOUFQPYZQPMZNFS NFFUT6-7SFRVJSFNFOUT Thermal Shock ¡$UP¡$UJNFT UZQJDBMWPMUBHFDIBOHF Device Labeling .BSLFEXJUI-'WPMUBHF6-MPHPTBOE EBUFDPEF Solvent Resistance .*-45%.FUIPE' Moisture Sensitivity -FWFM+45%$ ©2012 Littelfuse, Inc. SMOV25S Varistor Series Revision: May 24, 2012 Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/smov25s.html for current information. Varistor Products Thermally Protected Varistors > SMOV25S Series Product Dimensions Lead Configuration 31Max P1 LF 9 36Max Galvanic isolation LF9 SMOVXXS321MP SMOV25S321MP Thermal disconnect 1209 1148 S1 ON (Normal Close) 9Min 10Min S3 Common 1.3±0.3 2±0.3 0.3±0.2 0.5±0.2 3.5±0.2 S2 OFF (Normal open) P1 P2 3*0.6±0.2 MOV S2 S3 S1 S2 S3 S1 P1 P2 Primary side P2 13.4±0.2 2.5±0.3 8.5±0.5 3.5±0.2 1.4±0.2 Secondary side 4.0±1.2 Application Example Thermal disconnect * LED is off when the product is normal(S1,S3 connected), LED is on when the product disconect opens(switch change status; S2,S3 connected as shown by dotted line ). S1 ON R LED S3 Common MOV S2 OFF Note: EXAMPLE ONLY - Connection to S2-S3 and S1-S3 depends on customer indication circuit and can vary. P2 Primary side To Protected Circuit Galvanic isolation P1 Secondary side Switch Specification SMOV Switch Voltage DC Current (Amps) 4XJUDI 7 " Contact Resistance Max. Insulation Resistance Min. Nû ©2012 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/smov25s.html for current information. .û Dialectric Strength 0.5mA/Minute 7"$ SMOV25S Varistor Series Revision: May 24, 2012 SMOV25S Series 16.5Max Varistor Products Thermally Protected Varistors > SMOV25S Series Part Marking System Part Numbering System UL Recognized SMOV 25 S 321 N P Component Mark DEVICE FAMILY Production Site Code Littelfuse Thermally Self Protected MOV Littelfuse Mark DISC SIZE (mm) Part Number 25mm Production Date Dode (Year and Week) CERAMIC SHAPE S: Square LF9 SMOV25S321MP 1148 VM(AC)RMS 115V to 750V M:With Isolated Monitored Switch N: Non Isolated Monitored Switch Design P: Lead-Free and RoHS compliant Term Definitions Rated AC Voltage (VM(AC)RMS) – MCOV 5IJTJTUIFNBYJNVNDPOUJOVPVTTJOVTPJEBM3.4WPMUBHF UIBUNBZCFBQQMJFE5IJTWPMUBHFNBZCFBQQMJFEBUBOZ UFNQFSBUVSFVQUPUIFNBYJNVNPQFSBUJOHUFNQFSBUVSFPG UIFEFWJDF UL 1449 "O6OEFSXSJUFST-BCPSBUPSZTUBOEBSEDPWFSJOHUIFTBGFUZ SFRVJSFNFOUTGPS4VSHF1SPUFDUJWF%FWJDFTJOUFOEFEGPS QFSNBOFOUMZDPOOFDUFEDPSEDPOOFDUFEBOEEJSFDUQMVHJO BQQMJDBUJPOT Maximum Non-Repetitive Surge Current (ITM) 5IJTJTUIFNBYJNVNQFBLDVSSFOUXIJDINBZCFBQQMJFE GPSBTJOHMFTJNQVMTFXJUISBUFEMJOFWPMUBHFBMTP BQQMJFEXJUIPVUDBVTJOHEFWJDFGBJMVSF5IFQVMTFDBO CFBQQMJFEUPUIFEFWJDFJOFJUIFSQPMBSJUZXJUIUIFTBNF DPOmEFODFGBDUPS Limited Current Abnormal Over-voltage Test "O"$PWFSWPMUBHFDPOEJUJPOBQQMJFEUPB4VSHF1SPUFDUJWF %FWJDFBDDPSEJOHUP6-4FDUJPO5IFTIPSUDJSDVJU DVSSFOUJTMJNJUFECZTFSJFTDPOOFDUFESFTJTUPSTUP" """BOE"5IFDPOEJUJPOJTNBJOUBJOFE GPSIPVSTPSVOUJMUIFEFWJDFVOEFSUFTUJTEJTDPOOFDUFE GSPNUIF"$TVQQMZPSUIFDVSSFOUPSUFNQFSBUVSFSFBDIFT FRVJMJCSJVN Nominal Discharge Current (IN) 1FBLWBMVFPGUIFDVSSFOUTFMFDUFECZUIFNBOVGBDUVSFS UISPVHIUIF41%IBWJOHBDVSSFOUXBWFTIBQFPGT XIFSFUIF41%SFNBJOTGVODUJPOBMBGUFSTVSHFT Voltage Protection Rating (VPR) "SBUJOHTFMFDUFEGSPNBMJTUPGQSFGFSSFEWBMVFTBTHJWFO JO6-BOEBTTJHOFEUPFBDINPEFPGQSPUFDUJPO5IF WBMVFPG713JTEFUFSNJOFEBTUIFOFBSFTUIJHIFTUWBMVF UBLFOGSPN6-UPUIFNFBTVSFEMJNJUJOHWPMUBHF EFUFSNJOFEEVSJOHUIFUSBOTJFOUWPMUBHFTVSHFTVQQSFTTJPO UFTUVTJOHUIFDPNCJOBUJPOXBWFHFOFSBUPSBUBTFUUJOHPG L7L" Maximum Non-Repetitive Surge Energy (WTM) 5IJTJTUIFNBYJNVNSBUFEUSBOTJFOUFOFSHZXIJDINBZCF EJTTJQBUFEGPSBTJOHMFDVSSFOUQVMTFBUBTQFDJmFEJNQVMTF EVSBUJPOXJUIUIFSBUFE3.4WPMUBHFBQQMJFEXJUIPVU DBVTJOHEFWJDFGBJMVSF Nominal Voltage (VN(DC)) 5IJTJTUIFWPMUBHFBUXIJDIUIFEFWJDFDIBOHFTGSPNUIF PGGTUBOECZTUBUF UPUIFPODMBNQJOHTUBUF BOEFOUFST JUTDPOEVDUJPONPEFPGPQFSBUJPO5IFWPMUBHFWBMVFJT VTVBMMZDIBSBDUFSJTFEBUUIFN"QPJOUBOEIBTBTQFDJmFE NJOJNVNBOENBYJNVNWPMUBHFSBOHF ©2012 Littelfuse, Inc. SMOV25S Varistor Series Revision: May 24, 2012 Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/smov25s.html for current information.