【经验】浅谈单相交流电防雷电路设计

时间： 2019-04-08 来源：世强

技术问答

随着国家电网的飞速发展，居民用电对电网质量要求越来越高，尤其是防雷这块。每当雷雨季节，就会出现雷击导致家用电器损坏的现象。本文针对居民用电的单相交流电，结合LITTELFUSE的防护器件讨论一下几种单相交流电的防雷设计电路。

图1是一款最简单的单相交流电防雷器设计，其优点是电路简单，采用复合对称电路，共模差模全保护，火线零线随便接。其缺点是压敏电阻RV1短路失效后，短路电流过大导致导线发热严重，容易引起火灾。

图1 简单的单相交流电防雷器设计示意图

针对图1的问题，设计出如图2的较安全防雷器设计电路，其优点采用复合对称电路，共模差模全保护，火线零线随便接，正常工作是无漏电流，可以延长器件使用寿命，由于陶瓷气体放电管失效模式大多为开路模式，不易引起火灾。其缺点是万一人为因素导致压敏电阻和陶瓷气体放电管都短路失效，也容易引起火灾。

图2 较为安全的单相交流电防雷器设计示意图

结合图1和图2设计的优缺点，设计如图3的通用单相交流电防雷器保护电路，优点采用复合对称电路，共模差模全保护，火线零线随便接，安全，压敏电阻短路失效后，由于保险管的存在，能与电路脱离，一般不会引起火灾。

图3 通用单相交流电防雷器设计示意图

针对器件选型，防护专家品牌Littelfuse为其提供了全面的防护器件选型，交流电防护压敏电阻选型，压敏电阻的电压值参考如图4所示，选压敏电压高一点的更安全，耐用，故障率低，但残压略高。推荐Littelfuse的C-III系列压敏电阻，宽工作电压范围130VAC-1000VAC，主要用于交流线路电涌防护。

图4 单相交流电压敏电阻选型参考示意图

陶瓷气体放电管的通流容量根据要求的通流容量选择，直流击穿电压为470V-600V。当要求的通流容量≤3000A时，可以用玻璃放电管代替。推荐Littelfuse的AC系列中高压放电管，其单此最高承受10KA浪涌电流，满足交流电浪涌防护需求。

以上便是单相交流电防雷电路设计一些总结，如有疑问，欢迎在世强电商平台留言。

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Littelfuse（力特）电路保护产品选型指南

目录- Company profile Circuit Protection Technologies Overcurrent/Overvoltage Protection device ESD Suppression Solutions Overcurrent Protection/Overvoltage Protection Applications Common Circuit Threatsand Protection Solutions Fuses Fuse Holders PPTC Devices Varistors Gas Discharge Tubes ESD Suppressors TVS Diode Arrays Protection Ics TVS Diodes PLED Bypass Protectors SIDACtor® Protection Thyristors Circuit Breakers

型号- PXXX0SAMC,LS2406ERQ23,1812L,LVR,SPHV,30KPA-HR,456SE,456SD,15KPA,345 SERIES,ITV9550 30A,AQ24CANFD,SDP,AC,RUEF110S,LS2406ERQ33,PXXX2AC,MICROSMDCH,562 SERIES,AQ1003-01ETG,SDPXXX0T023G5,150603,800,801,802,804,806,807,BA,808,BB,PGB2,PGB1,P4SMA,TSM600,PTF070,MICROASMD,SC1103C-01UTG,PTF078,PTF077,LS0504EVT233,PTF075,AQXXC-01LTG,810,811,356 SERIES,5KP,813,FB65,814,FB66,CA,CG,CH,PTF080,286677,PICOASMDCH,PXXX2AX,MINIASMDC,SMF4L,121004,B61089BDR,282008,121001,282007,820,121003,AK10-Y,821,121002,282002,823,824,282001,FB55,DA,828,DB,FB58,NANOASMDCH,820-20,830,831,834,835,TP5KP,101001,3453,3452,605,606,RKEF,607,PXXX2ACMC,LS12052BD33,AGRF,PTF0080M,B61089QDR,RUEF135V,850,851,852,3455,853,AHEF100,60R,617,618,GTCX36-XXXM-R05,PXXX0Q12X,860,862,HA,HB34,GTCX36-XXXM-R10,2920L,SP8008,AQ4337-01ETG,155 SERIES,P6SMB,803-01 SERIES,SLD,810 SERIES,870,PTF015,874,875,876,342 SERIES,877,5.0SMDJXXS-HRA,348 SERIES,30KPA,SM7,SM24CANB,SMCG-HR,TSV250,FC09B1606NL-0,SMD,SMF,TPSMB-VR,881,35408 SERIES,OMN002,400,OMN004,885,35406 SERIES,881 SERIES,OMN006,646,405,647,V20H275AUTO,407,649,RXEF,101010,52100001009,AQ24CANA,AQHVXX-01LTG,656,101002,PXXXXDF,658,101003,5KPA-HR,824-20 SERIES,5.0SMDJ,570 SERIES,AQ3530-01FTG,B-SERIES,662,663,422,664,665,LA,SMBLCE-HR,L-SERIES,AQHVXX-01LTG-C,PTF050,SC1105-01UTG,PTF055,G-SERIES,435,437,438,A-SERIES,870 SERIES,PTF065,440,RGEF,437A,441,SP1103C,443,202,203,254 121,445,446,688,447,3453 SERIES,448,449,208,209,TR600,04450001,PTF030,438A,451,SRP,452,453,454,TSM250,PTF035,213,456,215,821 SERIES,458,216,LV ULTRAMOV,459,217,218,SP3401,SP3400,AQ3522-01FTG,TPSMC,FHN26G2,TPSMB,PTF040,TPSMD,LS2405IDD23,PTF045,460,461,5KPA-HRA,462,220,464,465,466,224,467,225,576 SERIES,468,254 101,229,BXXX0CX,SL0902A,102080,470,BXXX1UX,471,472,230,473,232,233,501A,476,234,235,477,MIDSMD,PXXX4UCMC,239,MHS,850 SERIES,813 SERIES,AQ1205-01ETG,483,RA,485,487,802 SERIES,259UL913,ITV4030 22A,SM20,345121,102064,254 201 - 208,251,494,PLEDXUX,253,SD,SE,SG,SH,259,4.0SMDJ,SL1002A,SM,15KPA-HRA,15KPA-HR,GTCX37-XXXM-R10,102074,102076,102079,102078,NANOSMDCH,GTCA28-XXXM-R03,NY61AP,262,102071,263,265,266,3.0SMC,267,DSLP,268,269,LOW RHOPTC,520 002,520 003,520 004,SL1003A,520 005,1KSMB,345101,MLA,LS24062RQ23,1210L,AQ36CANA-02HTG,445073,MLE,MHP-TAM15,272,273,MLN,M-SERIES,274,E-SERIES,275,278,279,AQ3102-02HTG,MHP-TAC6,803-01,MHP-TA,285,AQ3041,SMBLCE-HRA,PLEDXUSXA,SP4322-01ETG,AQ3045,TP1.5KE,SP4208,SC1205-01ETG,820-20 SERIES,354 SERIES,CG33.0L,SP11XX,359 SERIES,MS-SERIES,111 SERIES,100 SERIES,NANOSMDC,346877,PICOASMDCH010F-2,340 SERIES,AHRF300,AHEF,342025,342024,342021,ZA,AQ3400,XGD,FH604,AQ1250-01ETG,PXXX3ACMC,FH602,PXXX6U,SP4010,342006,PLEDXN,SZD200,HG34,PLEDXS-A,J-SERIES,824 SERIES,FEMTOASMDC,ITV5432 30A,AK6-Y,557 SERIES,SL1021A,SL1021B,SP4020,SP4022,SP4021,SMDCH,SP4024,281010,SP4023,PLED,MINISMDC,AXXXXUX6,254 011 - 008,SMTAK3,PXXX0Q22XLH,MHP-TAM6,AK15,445005,281007,154T,281008,281005,AK10,AQ1005,51800001009,PXXXXS4X,ITMOV,354701 SERIES,483A,445004,LS05006VPQ33,SP4044,BXXX1UC4,SP4045,5200001,SMBJ,AQXX-01LTG,AQ7538-08UTG,SP1064E-04UTG,TCF250,SMTOAK2,SMAJ,AQ7520-08UTG,PXXX3AX,NANOASMDC,461E,811 SERIES,800 SERIES,157T,FC51,PXXX1U,PXXX1S,TRF250,SMBJ-HRA,SMDJ,CG3,SP3384NUTG,CG2,CG5,CG4,2205,CG7,B3XX4UX,CG6,VLP,VLR,0603L,PLEDXUX-A,SMCJ,PICOASMDC,LS0504EDD12,SMD2,PXXX0Q22C,GTCX35-XXXM-R05,SMDJ-HR,SMDC,TMOV34S,AHRF,440A,AXGD10603NR,K-SERIES,TPSMC-VR,H-SERIES,SZ1SMB,SZ1SMC,SZ1SMA,219XA,AK20-Y,ITV9550L2030MR,441A,SZ1.5SMC,SP1250-01ETG,C-SERIES,SC1210-01ETG,TB-SERIES,0402L,ITV9550 45A,AHRL,DHB34,FHN26W,AUML,TP6KE,LTKAK3,AQRV05-4HTG,LTKAK2,72R,977,TLP,LTKAK6,AQ15CANA-02HTG,PXXX3AC,SP3205-01ETG,501,3452 SERIES,504,505,506,507,GTCX23-XXXM-R01,508,8.0SMDJ,PXXX3U,100060,100061,100062,122090,100063,100064,100065,PXXX0SX,100066,SC1533-01LTG,SPHV-C,AHS,122093,150318,TS600,150319,150316,150317,150315,AQ3102-02JTG,150312,513,514,100058,100059,2016L,286377,122088,122087,559 SERIES,122083,GTCX26-XXXM-R05,521,523,AK15-Y,100067,526,150322,527,PXXX2SXLH,SL1411A,AK1,AK3,AK6,VTP,422A,SMCJ-HRA,ASMD,C-III,SR70,0805L,860 SERIES,RHEF,SMF3.3,303,304,305,308,35409,35408,35407,35406,TPSMA6L,PXXX2SX,SP724,SP725,SC1115-01UTG,TSL250,LOW RHO,HMOV,SP723,SP720,SP721,312,313,30R,314,556,315,557,559,318,SLD6S,SP1305,SP712,560,562,322,564,324,325,326,328,SLD5S,CX-SERIES,570,571,332,SLD8S,PXXX0SD,576,TRF600,PICOSMDC,3.0SMCJ,SZSMF,LS1205EVD33,SP1326,AQ12CANA-02HTG,340,150307,100,342,FHN20G,344,345,35407 SERIES,348,SMAJ-HRA,150300,AUMOV,LTKAK10,445 SERIES,SC1333-01ETG,RUEF,GTCX25-XXXM-R02,GTCX25-XXXM-R05,LS0502SCD33,111,354,356,52000001009,359,824-20,SP3420,150274,RUSBF,SP1003,SP3422,PXXX0ME,564 SERIES,SP2555NUTG,51900001009,10207101009,520 101,369,SL1122A,571 SERIES,SP1233,AQ2555NUTG,SP1255P,600R,PXXX4UX,WB07B0606LG,370,372,1.5SMC,TLPA,373,1.5SMB,374,SZSMF4L,377,820 SERIES,254 131,PXXX1CX2,SEPXXXXQ38,00300210,SZW200,TP5.0SMDJ,523 SERIES,SP1005,SP1006,CG32.0L,382,AQ1205-01FTG,383,385,35409 SERIES,407A,V14H460AUTO,SMA6L,391,392,CG32.5L,N-SERIES,SMA6J,395,3425L,F-SERIES,154,396,397,398,157,399,159,SC1122-01UT

选型指南 - LITTELFUSE - v0420 - 0420 PDF 英文下载

【选型】Littelfuse（力特）压敏电阻-金属氧化物压敏电阻（MOV）选型指南

目录- 过压抑制压敏电阻特性/术语/考量因素压敏电阻连接示例压敏电阻选择工作表机构标准/免责声明表面贴装式多层压敏电阻径向引线式压敏电阻工业高能端子压敏电阻轴向引线型/专用型压敏电阻薄型/专用型压敏电阻高可靠型压敏电阻 TMOV®和iTMO系列工业高能热保护压敏电阻热保护压敏电阻 FBMOV系列

型号- V05E40P,V18MLA0805L,V18MLA0805N,V18MLA0805F,V385LA10CP,V220CH8 X,V575LA10P,V05P40P,VXXXDA40,V18MLA1210NHAUTO,V18MLN41206,TMOV14RP575E,V14H95P,V660LA100BP,TMOV34S201 EP,V10E250AUTO,TMOV34S461M,V130LA10C,V150LA20BP,TMOV14RP575M,V130LA10A,V681HG34,V10P130P,V142CA60,V270ZA05,V510LA40CP,V68ZA10P,V660LA100CP,TMOV34S661MP,V07P00P,V14H130P,V150LA20AP,V111HG34,V14P17AUTO,SMOV34S131MP,V05X50AUTO,V130LA20CP10,V22ZTX1,V3.5MLA1206,V22ZTX3,V140LA5,V47ZA7,V18RA8,V47ZA3,SMOV34S251MP,V47ZA1,V14P275P,V25S440P,V20X23P,V140LA2,V391HF34,V230LA40C,V3.5 MLA0603,TMOV34S421MP,SMOV34S131NP,V20P23AUTO,V30MLA0603,TMOV34S681M,SMOV34S251NP,V175LA20C,V230LA40A,V271HG34,V175LA20A,V20E35AUTO,V510LA40AP,TMOV34S111M,V12MLA0805L,V24RA22,V181HG34,V29MA2A,V480LTX40A,V360ZA05,V120CH8,V18ZA40PX10,V20P510P,V575LA10CP,Y9MLA0805LN,TMOV34S301MP,V18MLA0805LN,V150LA5P,RA22,V14P40P,V14P140P,V39ZA3P,V20X130P,V20E460AUTO,V20P175AUTO,V20P5AUTO,V14E40P,V625LA40A,V141DHB34,V441DHB34,TMOV34S331M,V460LA80CP,V10E30AUTO,V25S130P,V180ZA05,V321DB40,RA16,V56ZA20P,TMOV14RP750E,V3.5MLA0603NHAUTO,V481HF34,V10P150AUTO,TMOV14RP750M,V20E250P,V625LA80BP,V07E150P,V190SM7,V47ZA20P,V130LA20CX325,V20E625,V351DHB34,V05X25AUTO,V320LA40BP,TMOV34S201M,V180ZA10,V151CA32,V10P625AUTO,V14H175P,V30MLA0805LNHAUTO,V39ZA6P,V321HF34,V275LA10CP,V20E17AUTO,V481DB40,V200RA16 X2749,V8ZA1,V8ZA2,V20H320P,V20E275AUTO,V625LA80CP,V300LA40CX810,V10E14AUTO,V150LA2P,V571HF34,TMOV34S551M,V20P60P,V320LA40CP,V20E300AUTO,V14P85P,V20E60P,V20X20P,V180ZA20,V180ZA1P,V07E20AUTO,V82ZA05P,V251HB34,V20E550AUTO,V460LA10CP,V39ZA05,V10P440P,MA SERIES,V25S175P,V14H440P,V10E440P,V18MLA1206NHAUTO,V24ZTX50,VARISTOR,V575LA80CP,V100MA4B,1-2000B,V100MA4A,SMOV34S621MP,SM7,V250LA40CX620,V100MA,V26MLA1210NHAUTO,SMD,V0603MHS22F,V0603MHS22N,V230LA20CP,TMOV25SP130E,V10H40P,SMOV34S621NP,TMOV25SP130M,V14P320P,V20H25P,V230LA4,V120MLA1210N,V14MLA0805NHAUTO,V39ZA20,V39ZA1P,V551HF34,V571DB40,V0402MHS22NR,V881CA60,V330ZA05P,V430ZA05,V230LA40CP570,TMOV34S421EP,V120MA2S,V180ZA5P,V18MLN41206LWT,V20E60AUTO,V20X75AUTO,V07P7AUTO,V460SM7,V5.5MLA0603L,V480LTX80B,V5.5MLA0603N,V130LTX20B,V480LA10P,V18MA1B,V45MLA1812N,V14P85AUTO,V18MA1A,V14P42AUTO,TMOV34S151M,V230LA20AP,V20E385P,V575LA80BP,V07P320P,V20P550P,V18MA1S,V48MLA1210NHAUTO,V18ZT3P,V10H510P,V142BB60,V07X50P,V10E35P,V20X30AUTO,V20E140AUTO,V120MA1A,V150LA20C,V150LA20B,V150LA20A,TMOV34S301EP,V10E75AUTO,V14P40AUTO,V680ZA05,V661HB34,V33RA16,V05P50AUTO,175SM20,V130LA10AP,V07E460P,V200RA8,V275SM7,V20E320AUTO,V511DHB34,TMOV14RP625E,V120MA2B,V18MLA1210N,V48MLA1210LNHAUTO,TMOV14RP625M,V680LA10CP,V14X95P,V481HB34,V120MA1S,V20P14AUTO,V510SM7,V14P35AUTO,V14E440AUTO,V18MLA1206XXX,TMOV25SP175E,V18ZC3P,V07P75AUTO,V130LA10CP,TMOV25SP175M,V20P420P,V420LTX40B,V201HG34,V14E150P,V20P7AUTO,V07X95P,V271BA60,V751BA60,V100MA4S,V14P230P,V750ZA05P,V10P35P,V10P00AUTO,V251HF34,V20X60P,V300LA4,V300LA2,V240ZA05P,V82ZA4P,V301HF34,V10E25AUTO,V14E275AUTO,V14X17AUTO,V10P30P,V26MLA1206NHAUTO,V20E300P,V56MA2S,V10X25AUTO,V180ZA1,TMOV25SP440E,TMOV34S141MP,V10E30P,V180ZA5,V421DA40,V18MLN41206L,V05X30AUTO,V14X50P,TMOV25SP440M,V05E30AUTO,V282CA60,V82ZA5P,V68MLA1206,V250LA40CP620,V05X14AUTO,V18MLA0402F,V20H30P,V10E130P,TMOV34S511EP,V14E25AUTO,V750ZA05,V661BA60,SMOV34S,SM20,V56MA2B,V9MLA0402,V10H420P,V56MA2A,V07P140P,V07X17AUTO,V230LA40CX570,V20P25P,HF SERIES,V82ZA2P,V150RA8,V18AUMLA222OT,V07X40P,V47RA8,V33ZA20P,HB SERIES,V3.5MLA0805LNHAUTO,V18MLA0805NHAUTO,V661HG34,FBMOV300M,V18MLA0402N,V351HA32,V05E14AUTO,V20P250P,V25S625P,V351HA40,V20H150P,V14MLA1206N,V251DB40,V07E17AUTO,V20E25P,V141HB34,V14P250AUTO,V14E275P,V07P275P,V751HG34,V39ZA1,V82ZA12,V20H35P,V430RA22,TMOV14RP175E,TMOV20RP275M,V14E460AUTO,V391HA32,V20P385P,V10X95AUTO,V39ZA6,V39ZA3,V33ZTX5,TMOV14RP175M,TMOV20RP275E,V10H550P,V07P230P,V33ZTX1,V82ZA20,V05E60AUTO,V18MLA1206N,V511CA60,V330MA5B,V420SM7,VXXXXLAXXCP,TMOV34S621MP,V14H300P,V391HA40,V14E300AUTO,V175LA40AP,V430RA16,V48AUMLA2220,V12ZA1P,V05E75AUTO,V131HG34,V360ZA05P,V480LA7,V421DHB34,V18MLE1206XXX,V330MA2A,TMOV20RP140M,V320LA7,V8RA8,V07X35AUTO,V10E175P,TMOV34S461MP,TMOV20RP140E,V33CH8,V33MLA1206N,V14E230P,V230LA20AP1347,V0603MHS22NR,V10E95AUTO,V10H115P,V12ZA2P,V26MLA0603N,V10P75P,V14P0AUTO,V175LA20CPX425,V26MLA0603F,V82ZA05,V10P625P,V14MLA0603,V175SM20,V10X35P,V10E75P,V220ZA05,TMOV14RP130E,V14P60AUTO,V22ZA3PX1347,V07P35AUTO,V511CA32,V200RA22,TMOV14RP130M,V150LA1P,V301HB34,V10E550AUTO,V36ZA20P,V07P40P,V385SM7,V68AUMLA2220,V07E35AUTO,V20E230AUTO,V271HB34,V321HA32,V130LTX2,V625LA10,TMOV34S661EP,V05P20AUTO,V05E11P L1B5XXXXX,V9MLA0402LN,V420LA20AP,V30MLA1206N,V07E40P,V10E23AUTO,V14MLA0805LN,V10X20AUTO,TMOV34S141EP,V510LA,FBMOV385M,V14X11P,V07X75AUTO,V10H460P,V22RA16,V12ZA05,M83530/1-2200D,V10X30P,V20H460P,V07P23AUTO,V20P75AUTO,V9MLA0402LF,V05X40P,V18ZA40PX2855,V460LA40B,V460LA40C,V20P150AUTO,V625LA40AP,V25S750P,V680LA10,V420LA20CP,V27ZA4,V27ZA2,V07P85P,V14E230AUTO,V275LA10P,V39ZA05P,V141HF34,V27ZA1,V14H40P,TMOV20RP230M,V321HA40,V421HA32,V14E320P,V131BA60,V200RA16,TMOV20RP230E,V20P23P,V18MA,V9MLN41206,V10E50AUTO,V14X42AUTO,V

选型指南 - LITTELFUSE - Revised: 09/14/17 PDF 中文下载

Gas Discharge Tube EN 61643-311:2013 IEC 61643-311:2013 (TÜV) Certificate of surveyed conformity（J 50505339）

测试报告 - LITTELFUSE - 03.06.2021 PDF 英文下载

Littelfuse（力特）气体放电管（GDT）选型指南

目录- GDT Characteristics, Terms and Consideration Factors Introduction Gas Discharge Tubes

型号- SL1021A145,SL1010A170,SL0902A,CG5250,SH90,SL1021A260,SL1021B350,SH400,SL1021B230,SG75,SGXXX,SL0902A600,SL1003A090,CG3 1.5,CG3 1.3,CG3 1.2,SL1002A600,CG3 1.1,CG3 1.0,SL1002A600SP,CG7200,CG6350,SE SERIES,SL1021A150,CG6230,SG420,CG6470,SG300,CG2420,SG300Q,CG2300,SG SERIES,CG5350L-03TR,SL1003A400,SL1122A,SL1122A260,CG5XXXLS,SL1021A600,CG5230,CG5470,SL1021B250,CG5350,SL1002A075,SG90,SH300,CG7400,SL1011A075,CG SERIES,SL1002A,CG75,CG5XXXMS,SL1026-700,CG3 2.0,CG90,SE140,CG5XXXL-02,SG200,CG3 2.7,SL1011A090,CG3 2.5,SL1021B145,CG2145 SN,SL1003A300,SL1003A,CG4 SERIES,CG5600L-02,SL1026-275,CG2250 SN,CG5XXXLTR,CG90 SN,CG7230,SL1002A090,CG7350,CG7470,SE200,CG5600,SL1003A450,SL1411A250,CG3 7.5,CG7120,CG2470,SL1021A350,SL1021A230,CG43.0,CG6145,SL0902AXXXSM,SL1011A500,SL1010A230,SL1010A350,CG7 SERIES,SL1010A470,SE470,CG5270,SE230,SL1021B450,CG5150,SE350,SG420Q,SL1011A150,SG400,SL1003A350,SL1003A230,CG5145,SL1411A470,SL1411A350,SL1411A230,CG2600 SN,SL1021A250,CG6250,SH600,CG2 SERIES,CG590,CG110,CG2800LTR,SL1011A600,SL1021A420,SL1021A300,SL1003AXXXR,CG5XXXL-03TR,SG150,SG600Q,SL1021B075,CG5XXXXLTR,CG7150,CG5400,SG450Q,SL1011A250,SL1003A250,CG3 5.0,SL1021B400,CG2350 SN,AC SERIES,SH230,CG2230L,SH350,SH470,CG2145,CG41.2,SL1011A260,CG2470 SN,SL1003AXXXRF,SL1021B090,CG41.0,CG690,SL1011A145,SL1003AXXXR-001,CG41.8,SL1021A200,SL1002A230,SL1411A,CG5 SERIES,SL1002A470,SL1002A350,CG7250,SH145,CG2230 SN,CG2350,CG2230,SL1011A230,SL0902A420,SL1011A350,SL1011A470,SL1411A600,SL1021B300,CG675,SL1122A090,SL0902A090,CG2250,CG3 6.5,SH250,SL1411A150,SL1021A450,CG3 6.2,SL1021B420,SH SERIES,CG42.0,CG6600,CG790,CG42.5,SL1003A260,AC120,CG2800,CG42.7,AC240,SL1021A500,SG350,SG230,SL1021B150,SL1002A250,SL1026,SL1122A230,CG3 3.3,CG775,CG3 3.0,SL1026-400,SL1010A420,SL1411A090,SL0902A230,SL0902A350,SL1021A,CG3 SERIES,SL1021B,CG6300,SL1010A075,SL1021A400,CG6 SERIES,CG5XXX,SE500,SL1010A,SH75,SL1021A090,CG3 4.0,SL1021B500,CG2300 SN,SL1411A075,SL1002A260,CG21000,CG3 4.5,SG500Q,CG6400,SG350Q,SL1003A500,SL1011A,SL1010A090,CG2600,CG40.8

选型指南 - LITTELFUSE - Revised: 12/12/17 - 12/12/17 PDF 英文下载

【选型】如何为电源线路浪涌保护选择一款合适的气体放电管？

Littelfuse GTCS35-900M-R05气体放电管直流击穿电压范围 (%)：±20%，标称直流击穿电压90V，最大脉冲击穿电压@ 100V/μs：≤450V，电容(Co) <1pF。

器件选型发布时间 : 2018-02-01

CG9 Series Gas Discharge Tubes Datasheet

型号- CG9 SERIES,CG92.0,CG91.0,CG95.5,CG9X.XXXX,CG91.8,CG93.5,CG92.5,CG9,CG91.5,CG91.2,CG91.5LTR,CG91.8LTR

数据手册 - LITTELFUSE - 04/29/24 PDF 英文下载查看更多版本

三相380V压敏电阻配置、型号和接线方式？

三相380V压敏电阻接线方式一般是单根火线对零线并接，三相就是分别并三个，配置主要参数第一个是稳定电压值，一般选431或者471，第二个浪涌电流根据负载特性选择，第三个就是漏电流参考；型号选择推荐Littelfuse的压敏电阻，具体型号可参考：https://www.sekorm.com/doc/previewDoc?docId=680916

技术问答发布时间 : 2018-10-15

CG8 Series Gas Discharge Tubes Datasheet

型号- CG8 SERIES,CG83.6,CG84.5,CG82.5,CG8,CG84.0,CG83.0,CG8 X.X XXX

数据手册 - LITTELFUSE - 03/05/24 PDF 英文下载查看更多版本

【选型】10000A/1pulse压敏电阻助力开关电源端口实现雷击浪涌保护

Littelfuse的V20E460P(P20V460)压敏电阻,持续工作电压为AC460V/DC615V可用于AC230V系统之中。最大可承受浪涌电流为10000A/1pulse，2000A/100pulse，钳位电压为1240V。

器件选型发布时间 : 2018-01-31

【选型】如何选用合适的气体放电管进行开关电源雷击浪涌的保护

笔者在开关电源设计项目中，做电源输入的保护时，涉及到雷击浪涌保护器件气体放电管的选型设计。由于Littelfuse的气体放电管型号很多，因此如何选择一款合适自己项目使用的气体放电管也是困扰设计工程师的一大难题。笔者此前负责的多个项目中，为了实现开关电源的输入雷击浪涌保护，多采用Littelfuse的气体放电管，积累了一定的选型和应用经验，借此分享给大家，希望对在一般选型应用中提供一些帮助。

器件选型发布时间 : 2018-07-01

【元件】力特推出SM10系列压敏电阻，可承受高达125℃，在汽车与电子产品浪涌保护方面取得突破性进展

Littelfuse公司宣布推出SM10压敏电阻系列，这是一款革命性的金属氧化物压敏电阻(MOV)，旨在为汽车电子器件、电动汽车(EV)以及其他各类应用提供卓越的瞬态浪涌保护。这款最新产品是首款符合AEC-Q200汽车标准的表面贴装MOV器件，能够承受高温工作，并以紧凑封装提供超高的浪涌电流处理能力。

产品发布时间 : 2024-02-02

Littelfuse（力特）气体放电管（GDTs）数据手册

型号- GTCR37-401M-R10,GTCN28-750M-R05,GTCS23-231M-R01-2,GTCA28-231L-R05,GTCN35-471M-R05,GTCS36-551M-R05-2,GTCS36-351M-R10-2,GTCS25-201M-R02,GTCA25-261M-R02,GTCS26-231M-R05,GTCS25-601M-R02,GTCC23-141M-R01,GTCS28-421M-R10-2,GTCS36-501M-R10-2,GTCS38-421M-R10-2,GTCS26-231M-R05-2,GTCS35-261M-R05,GTCN37-351M-R10,GTCS36-231M-R05-2,GTCT35-141M-R05,GTCN25-141M-R02,GTCS26-551M-R05-2,GTCC23-231M-R01-2,GTCS26-501M-R05,GTCS38-601M-R10-2,GTCN38-601M-R10,GTCN38-201M-R10,GTCS36-201M-R05-2,GTCS26-201M-R05-2,GTCR37-261M-R10-FS,GTCS28-601M-R10-2,GTCS35-401M-R05,GTCA38-401M-R10-FS2,GTCS28-301M-R20,GTCN28-750M-R10,GTCR37-750M-R10,GTCA35-201M-R05,GTCA35-900M-R05,GTCS36-261M-R05-2,GTCN35-551M-R05,GTCR37-421M-R10-FS,GTCN28-401M-R10,GTCA35-601M-R05,GTCS26-261M-R05-2,GTCS23-750M-R01,GTCN25-900M-R02,GTCS23-201M-R01-2,GTCN38-900M-R10,GTCA35-141M-R05,GTCN35-151M-R05,GTCA35-551M-R05-FT,GTCN28-750M-R20,GTCA25-401M-R02,GTCA38-401M-R10,GTCN28-801M-R05,GTCS28-750M-R05,GTCA36-231M-R05,GTCA25-471M-R02,GTCN28-401M-R05,GTCX35-XXXM-R05,GTCS38-231M-R10,GTCN38-251M-R10,GTCR37-261M-R10,GTCS26-151M-R05,GTCS26-551M-R05,GTCA35-351M-R05,GTCS38-501M-R10,GTCR37-471M-R10,GTCA28-900M-R10,GTCN26-201M-R05,GTCN26-501M-R05,GTCA38-261M-R10,GTCS38-201M-R10,GTCR37-501M-R10-FS,GTCS25-141M-R02,GTCA26-351M-R05,GTCC23-201M-R01,GTCA28-231M-R10,GTCA28-231M-R05,GTCS28-351M-R10,GTCN28-261M-R20,GTCN35-401M-R05,GTCS36-141M-R10-2,GTCR37-471M-R10-FS,GTCA28-900M-R20,GTCT35-900M-R05,GTCT35-351M-R05,GTCN25-601M-R02,GTCS35-471M-R05,GTCA35-351M-R05-FT,GTCS36-421M-R10-2,GTCA28-231M-R20,GTCS28-351M-R05,GTCS28-351M-R20-2,GTCS36-151M-R05-2,GTCC23-351M-R01,GTCA28-601M-R10,GTCS28-401M-R05,GTCA36-501M-R05,GTCS28-501M-R10-2,GTCT35-601M-R05,GTCN37-900M-R10,GTCS35-151M-R05,GTCS36-301M-R05-2,GTCS26-251M-R05,GTCS23-750M-R01-2,GTCN25-351M-R02,GTCS36-301M-R05,GTCA28-251M-R10,GTCA36-421M-R05,GTCS35-750M-R05,GTCS36-601M-R10-2,GTCA28-302M-R03,GTCN28-301M-R10,GTCN35-421M-R05,GTCN26-151M-R05,GTCA28-242M-R03,GTCN37-301M-R10,GTCA26-401M-R05,GTCC23-201M-R01-2,GTCN28-261M-R05,GTCN36-750M-R10,GTCA28-601M-R05,GTCS28-401M-R10,GTCS38-421M-R10,GTCA28-251M-R05,GTCX36-XXXM-R05,GTCA28-251M-R20,GTCS23-301M-R01,GTCS36-261M-R05,GTCS35-501M-R05,GTCA36-151M-R05,GTCA25-551M-R02,GTCA28-900M-R05,GTCN37-251M-R10,GTCN28-301M-R20,GTCS26-471M-R05,GTCS36-900M-R05-2,GTCS38-151M-R10,GTCN36-750M-R05,GTCN38-231M-R10-FT,GTCN28-551M-R05,GTCA36-201M-R05,GTCN26-141M-R05,GTCN26-421M-R05,GTCS28-351M-R20,GTCN28-261M-R10,GTCS36-301M-R10,GTCX36-XXXM-R10,GTCN36-231M-R10-FT,GTCA36-141M-R05,GTCS38-231M-R10-2,GTCS28-141M-R05,GTCA28-141M-R20,GTCS35-231M-R05,GTCS36-421M-R05-2,GTCS25-301M-R02,GTCR36-351M-R10-FT,GTCN36-421M-R05,GTCN28-351M-R10,GTCR37-351M-R10-FS,GTCA25-231M-R02,GTCS26-900M-R05,GTCN28-421M-R10,GTCA28-551M-R05,GTCN28-421M-R05,GTCA28-601L-R20,GTCC23-421M-R01-2,GTCS36-251M-R10-2,GTCS36-201M-R10,GTCS36-900M-R10,GTCN36-351M-R05,GTCA28-252M-R03,GTCA28-312L-R03,GTCX26-XXXM-R05,GTCS36-601M-R10,GTCN28-351M-R20,GTCN36-421M-R10,GTCN28-501M-R05,GTCN38-351M-R10,GTCS28-141M-R10,GTCS28-141M-R10-2,GTCN38-551M-R10,GTCA38-141M-R10,GTCA28-551M-R10,GTCS23-151M-R01,GTCN28-471M-R10,GTCN28-501M-R10,GTCN36-351M-R10,GTCR37-551M-R10,GTCA35-301M-R05,GTCN26-351M-R05,GTCS28-261M-R10,GTCS28-201M-R10-2,GTCN37-201M-R10,GTCN37-601M-R10,GTCS38-351M-R10,GTCS38-351M-R10-2,GTCS25-351M-R02,GTCS28-201M-R10,GTCR37-151M-R10,GTCS26-141M-R05,GTCS28-141M-R20,GTCS28-141M-R20-2,GTCA25-301M-R02,GTCA38-301M-R10,GTCT35-251M-R05,GTCN36-301M-R05,GTCS25-231M-R02,GTCS26-601M-R05,GTCN35-750M-R05,GTCS35-421M-R05,GTCT35-301M-R05,GTCN28-471M-R05,GTCS36-471M-R05-2,GTCS28-261M-R20,GTCS36-201M-R10-2,GTCN28-351M-R05,GTCR37-900M-R10-FS,GTCS36-750M-R05-2,GTCN38-421M-R10,GTCS26-750M-R05-2,GTCS35-301M-R05,GTCA36-471M-R05,GTCS36-601M-R05-2,GTCS28-201M-R20,GTCS26-201M-R05,GTCA26-750M-R05,GTCN36-261M-R05,GTCN35-601M-R05,GTCN35-501M-R05,GTCA28-201M-R10,GTCN26-301M-R05,GTCA36-601M-R05,GTCC23-301M-R01,GTCS38-301M-R10,GTCA26-551M-R05,GTCN25-750M-R02,GTCA35-251M-R05,GTCR37-141M-R10,GTCC23-XXXM-R01-2,GTCA35-151M-R05,GTCS28-251M-R10,GTCN35-900M-R05,GTCC23-900M-R01-2,GTCN36-401M-R10,GTCN36-301M-R10,GTCA28-362M-R03,GTCA36-900M-R05,GTCS38-401M-R10-2,GTCS36-151M-R05,GTCN26-231M-R05,GTCS26-401M-R05-2,GTCA28-201M-R05,GTCR37-141M-R10-FS,GTCA28-151M-R20,GTCT35-151M-R05,GTCR37-750M-R10-FS,GTCS23-XXXM-R01-2,GTCS23-201M-R01,GTCN38-471M-R10,GTCC23-231M-R01,GTCA28-201M-R20,GTCT35-201M-R05,GTCS23-900M-R01-2,GTCA38-231M-R10,GTCS38-750M-R10-2,GTCN36-261M-R10,GTCR37-551M-R10-FS,GTCN36-401M-R05,GTCA26-601M-R05,GTCS28-251M-R20,GTCS26-151M-R05-2,GTCS35-351M-R05,GTCS28-261M-R05,GTCC23-301M-R01-2,GTCA26-900M-R05,GTCA28-151M-R10,GTCT35-231M-R05,GTCS36-151M-R10,GTCS28-231M-R05,GTCA25-141M-R02,GTCN37-141M-R10,GTCS28-231M-R10,GTCS28-261M-R10-2,GTCN26-251M-R05,GTCA28-402M-R03,GTCS38-251M-R10,GTCS23-141M-R01,GTCS25-251M-R02,GTCS36-141M-R10,GTCS28-301M-R10,GTCA28-151M-R05,GTCA26-471M-R05,GTCS36-201M-R05,GTCA38-201M-R10,GTCS36-551M-R10-2,GTCS23-301M-R01-2,GTCA38-151M-R10,GTCA25-201M-R02,GTCS28-231M-R20,GTCN38-501M-R10,GTCA25-151M-R02,GT

数据手册 - LITTELFUSE - 2017年08月15日 PDF 英文下载