【应用】Littelfuse推出符合合AEC-Q200标准的 eCall系统提供过流保护及降额设计解决方案

2019-01-23 Littelfuse
PPTC,高分子聚合物正温度系数热敏电阻,自恢复保险丝,ASMD PPTC,高分子聚合物正温度系数热敏电阻,自恢复保险丝,ASMD PPTC,高分子聚合物正温度系数热敏电阻,自恢复保险丝,ASMD PPTC,高分子聚合物正温度系数热敏电阻,自恢复保险丝,ASMD

发生碰撞事故时,汽车eCall系统会自动向距离最近的急救中心发出求救信号,图1为eCall系统的框架图,位于标号3下方的是备用电池。系统正常运行时,会通过电池充电器向备用电池充电,在紧急情况下,若车辆供电中断,就需要用到备用电池。在充电过程中,备用电池容易受到过载和短路等过流危害,对此,LITTELFUSE(力特保险丝)公司推出了ASMD系列和miniASMDC系列PPTC高分子聚合物正温度系数热敏电阻,即自恢复保险丝),为eCall系统的备用电池提供过流保护。

图1   eCall系统的框架图

 

    PPTC用作反极性保护时,通常要与其他器件(如二极管)配合使用。当电路中出现过电流时,受热膨胀的PPTC的电阻会升高,从而使电流降低。在过流状况消失后,PPTC逐渐冷却,电阻恢复正常。PPTC因具有自我复位的能力,常被用于位置较远、难以接近或需要长时间正常运行时间的电路中。

图2   miniASMDC系列(左)和ASMD系列(右)PPTC的外观图

 

    ASMD系列和miniASMDC系列PPTC的作上限温度均为85℃,在上限温度内,断开电流和可持续工作电流会随着环境温度的降低而升高,如图3中的曲线A所示。其中ASMD系列在25℃下的可持续工作电流为0.22A~1.89A,在85℃下的可持续工作电流仅为0.11A~0.91A,适用小电流应用场合。

图3    ASMD系列和miniASMDC系列PPTC的电流与温度关系曲线(曲线A)

 

    ASMD系列PPTC的断开电流为0.59A~5A,对应的最长断开时间为12s~30s。图4是ASMD系列PPTC在25℃下的时间电流曲线,可以看出故障电流越大,断开时间越短,保证了对故障电流的响应速度。该系列PPTC可在直流电压下工作,额定电压最高可达60V,可承受的最大短路电流为40A,最大功率为1.9W,因此应用范围广。

图4    ASMD系列PPTC在25℃下的时间电流曲线

 

    miniASMDC系列PPTC的跳闸电流为0.3A~5A,由于产品系列多,所以可选范围更广。图5是miniASMDC系列PPTC在25℃下的时间电流曲线。该系列PPTC可在直流电压下工作,额定电压最高也可达60V,可承受的最大短路电流为100A,最大功率为1.2W,因此应用范围广。

图5   miniASMDC系列PPTC在25℃下的时间电流曲线

 

总结:1、Littelfuse的ASMD系列和miniASMDC系列PPTC均符合AEC-Q200标准,体积小且判断响应快,能够为空间有限的电路提供可靠的过流保护。因此是eCall系统理想的过流保护器件和反极性保护器件。 2、在汽车关断电流设计,要考虑到温度引起的热降额。

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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

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型号- 30V-050,YAZ1P5D47,25D301K,SMAJ6.0CA,SMAJ40CA,ESDLC24VD8B,3R075L-8X10,HLT9P04C,HLS150N30K,YAZ1P5D51,5.0SMDJ170A,P8SMB120CA,16V-110,15KP58A,SMD1206-351,YAZ1P5D3V3,ESDLC15VD3B,YAZ1P5D3V6,RS3BBF,YAZ1P5D56,5D361KJ,HLS135N100,P8SMB13CA,YAZ1P5D3V9,HLS80R1K5,SMDJ78CA,HLP9N90,ES2JBF,ESDLC8V0D3B,S2MB,1812 SERIES,PGB0603-05,YC2M2012B121GBE,YAZ1P5D62,Y1ZP35D43G,HLS80R1K1,10D560KJ,SMCJ14CA,5D121KJ,P8SMB60A,S2MF,YAZ1P5D68,HLT30P55,HLS70N40K,HLP9N80,30V-075,5.0SMDJ85A,PGB0603-12,SMCJ100CA,SMBJ300A,YAZ1P5D75,5KP30A,HLS55N100PF5,SMF120CA,SMBJ150CA,16V-135,SMDJ170A,SMAJ70A,33D-7,250V SERIES,HLP9N70,33D-5,PGB0603-24,HLT9P03C,SMDJ58A,33D-9,HLG3401A1N,32D122K,SA48CA,SMCJ30A,YAZ1P5D82,ESD12VAP,HLP2P06C,10D-11,HLP14N80,SA180A,10D-13,10D-15,15KP54A,20D781KH,20D781KJ,15KP120CA,YAZ1P5D91,SA22CA,P6KE8.2CA,SMAJ100A,16V-160,5.0SMDJ170CA,SA110CA,HLS60200K,ESD12VD3,HLT30P10,SMDJ54A,10D680KJ,SMD1210-150-6V,SMDJ160CA,3KP14CA,SMBJ400CA,5KP SERIES,SMF36CA,ESD24VAP,ESD12VD8,ESD12VD5,7D220KJ,P6SMB51CA,ESD12VD9,10D K SERIES,HLT30P06,1.0SMB22CA,SMCJ220CA,32D561K,2R230S-6X4.2,HLT30P03,HLS187N80,5D241KJ,SMD1206-075-16V,SMD2920-200-16V,1.5KE51A,7D781K,HLS170N30PF5,P6SMB,HLS60R580,SA70CA,1.5KE36CA,5D121K,LC SERIES,DA SERIES,5KP36A,P6SMB16A,SMAJ18CA,SM8,SA17CA,1.5KE170CA,SMD1812-351,25D122K,5KP90CA,S SERIES,P0080TA,SMF,SMDJ51A,3KP45CA,P6SMB15A,ESD3V0J4,3R230S-6X8,3KP58CA,HLP38N30,10D471KH,25D561K,1.5KE56A,ESD8V0D5B,US2B,US2A,10D471KJ,US2K,HLS12N100C,US2J,30V-900,US2G,SA5.0CA,US2D,HLP4P20,RS2AB,20D911KH,YAZ1P5D XXX,HLR08U02,20D911KJ,RS2AF,5KP24CA,US2M,P6SMB16CA,HLP110P06,SMBJ90A,10D-20,SMF64A,US1B,US1A,SMBJ12CA,2R***L-5.5X6 SERIES,US1J,P6SMB13A,US1G,US1D,US1M,ESDLC24VD3B,US1K,SMBJ5.0A,HLT6N06,30V-090,SMD2920-100-33V,ESD8V0D3B,HLS20100N2,5D561K,1.0SMB6.8A,Y1ZD9V1,HLS120R800,P6SMB12A,YC2M2012B,20D220K,P8SMB75CA,YAZ1P5D10,32D911K,YAZ1P5D16,YAZ1P5D15,YAZ1P5D18,YAZ1P5D12,YAZ1P5D11,P6KE180CA,YAZ1P5D13,Y3ZP2D5V6,Y5ZP2D XXX,P6SMB10A,P6SMB11A,HLR75S12,Y3ZP2D5V1,MF58-203F-3950,25D SERIES,P8SMB64A,YAZ1P5D20,HLP75N08,P6SMB100CA,YAZ1P5D27,5.0SMDJ78CA,SMD0603-003-30V,YAZ1P5D22,20D,YAZ1P5D24,Y3ZP2DXXX,10D101K,1.5KE10CA,YAZ1P5D30,7D471K,YAZ1P5D39,SMF60A,YAZ1P5D33,25D431K,YAZ1P5D36,5D820KJ,5D560K,P6KE27CA,5KP33A,P6SMB82CA,10D102K,14D911K,20D221K,YAZ1P5D43,7D470K,5KP11CA,HLR12U12,YAZ2D8V2,20D470KJ,P6SMB47CA,RS2GB,20D K系列,HLT60N03,HLT60N02,HLS60150K,MF52A-104F-3950,1.5KE540A,HLT60N08,RS2GF,HLT60N04,SMDJ200CA,HLT60N06,16V-1000,SMF70A,SMDJ190CA,3KP64A,HLR12U06,HLR12U04,HLR12U02,10D112K,SMAJ48CA,SMBJ43CA,10D680K,HLT60N10,14D561K,1.0SMB9.1A,HLS247N120Q,1N4001W,S3AF,S3AC,SMCJ7.5A,SMAJ400A,S3AB,600V-110,60V-300,SMF19CA,ES3DBF,SA90A,34S471K,10D241K,SMD1206-075-6V,SMBJ18A,MF52A-303J-4200,HLP840,14D431K,HLT4P06,P8SMB SERIES,25D,1N4002W,MF52A-104H-4100,SMAJ300CA,P6KE220CA,SA40CA,25D911K,HLP830,YC2M2012B161GBE,1N4003W,3KP9.0CA,1.5KE510CA,SMD1812-421,MF52A-302J-3950,HLT5N04A1N,SMD1210-035-16V,Y3ZP2D18,14D681KH,P6KE100CA,2R300S-8X6,SMBJ16A,MF52A-103F-3380,HLS145NH80PF5,14D KJ 系列,Y5ZP2D XXX SERIES,SMBJ30CA,P6SMB SERIES,5KP28A,14D681KJ,S3DB,Y3ZP2D10,S3DC,Y3ZP2D12,HL78MXX,Y3ZP2D11,Y3ZP2D14,Y3ZP2D13,Y3ZP2D16,0603,Y3ZP2D15,YAZ1DXXX SERIES,14D112KJ,S3BF,HLT4P10,1N4004W,SMF110A,S3BB,S3BC,SMD1210-200-6V,60V-375,SMAJ8.5CA,SMAJ180A,HLP12P06,SMBJ17A,SMF85CA,RS2BB,SMBJ120CA,14D121K,14D112KH,RS2BF,14D561KJ,5KP8.0A,1N4005W,14D561KH,5KP250A,3KP75CA,SMD1812-401,Y3ZP2D39,SMBJ14A,HLR24U12,P6SMB18A,7D621KH,SMDJ16CA,7D621KJ,14D560K,600V-160,Y3ZP2D33,Y3ZP2D36,SMBJ130A,S3DF,RS2DB,1N4006W,ES2ABF,Y3ZP2D30,RS3KBF,5KP120CA,SA100A,SMBJ15A,SMAJ170CA,2R400L-8X6,RS2DF,Y3ZP2D20,Y3ZP2D22,600V-150,Y3ZP2D24,Y3ZP2D27,Y1ZP35D7V5G,YC2M 2012B SERIES,100D-9,1N4007W,YAZ1D6V2,ESD24VD8,HLP9N20,SMBJ12A,SMAJ6.0A,ESD24VD3,P6KE62CA,ESD24VD5,YAZ1D6V8,20D511KH,20D511KJ,SA7.5CA,ESD36VD3,5.0SMDJ78A,SMCJ7.0A,SMDJ51CA,HLG2301BA1N,5.0SMDJ48CA,Y5ZP2D3V9,Y5ZP2D3V3,ES5JC,Y5ZP2D3V6,SMBJ13A,15KP51A,Y5ZP2D3V0,S3GF,P6KE75A,S3GC,S3GB,10D201KJ,SMCJ150A,30V-110,HLS18N200K,SMD1812-200-16V,3R075L-6X8,SA6.0A,S3JF,5KP8.5A,SMAJ78A,S3JB,YAZ2D110,S3JC,ESDSMDA15C,HLP14N10,ESD36VAP,US3ABF,5KP120A,30V-120,SMBJ10A,SMD1210-075-6V,SMBJ11A,SMAJ22CA,7D180KJ,5D330KJ,SMCJ6.5CA,HLS2045N2,2R***S-8X6,YAZ2D100,SMAJ75A,SMCJ36A,RS2KB,SMDJ210A,SA190CA,15KP75CA,RS2KF,7D K SERIES,5.0SMDJ75A,P0300DA,ES5GC,SMF54CA,YAZ2D130,1.5KE100A,3R600L-6X8,P6SMB170A,HLS16N100C,SMCJ45CA,3KP60A,US5GBF,RS2JB,15KP240CA,HLT40P03PF5,RS2JF,HLT40P03PF4,P6KE75CA,S3KB,HLT9P01C,YAZ2D120,S3KF,S3KC,SMAJ6.5A,SMBJ440A,Y1ZP35D47G,RS2MF,7D K,SMCJ58CA,HLT20N10,HLS20150K,SMDJ7.5CA,SMD1206-301,RS2MB,MF52□□□4300,5.0SMDJ17CA,1.5KE18CA,ESD3V3APB,14D201KJ,3R200S-5X7.6,5KP60CA,HLT15N03C,5.0SMDJ70CA,YAZ2D150,HLT20N06,HLS90N60PF5,SMCJ33A,7D K系列,HLT30ND03PF4,20D751KJ,20D751KH,SMD1206-050-24V,YC2M1012B121FBP,3R470L-6X8,L SERIES,20D K SERIES,S3MC,S3MB,ES5DC,HLT20N15,HLS250N80,YAZ2D140,14D301K,SA6.5A,S3MF,5.0SMDJ33CA,P0640S,SA36CA,SMBJ,HLS90N30PF5,SMDJ20CA,SMF6.0A,HLR30U03,HLS130N85,LB SERIES,HLR30U02,HLR30U04,3D-13,RS1G,HLR30U06,RS1D,7D681KJ,3D-11,ESDLC5V0D8B,RS1B,YAZ2D170,20D361K,SMD1210-020-30V,HLS8060K,RS1A,P8S

选型指南  -  音特电子  - 2021/10/18 PDF 中文 下载

解析过流保护器件之PPTC优势

关于电路的过流保护,方式多种多样,常用的有用可控硅为核心的电路保护、有用晶体管为核心的电路保护、有用继电器为核心的电路保护、有用一次性的保险丝、有用双金属片的温控电路、也有用专用集成电路保护器等等。本文中BORN伯恩半导体为大家介绍过流保护器件之PPTC的八大优点。

技术探讨    发布时间 : 2024-09-06

硕凯PPTC(贴片保险丝)选型表

提供硕凯电子PPTC自恢复保险丝选型,PPTC作为过流电子保护元件,采用高分子有机聚合物在高压、高温,硫化反应的条件下,掺加导电粒子材料后,经过特殊的工艺加工而成。相对传统保险丝硕凯PPTC自恢复保险丝具备过流过热保护,自动恢复双重功能。硕凯PPTC 具备多工作电压电流可供选择,可提供0603封装-2920封装纯贴片自恢复保险丝,工作电流从10ma-10a,工作电压从6V-60V,满足客户各种情况的需求!

产品型号
品类
封装
I hold(A)
I trip(A)
V max(Vdc)
I max(A)
P dtyp.(W)
Current(A)
Time(Sec.)
R min(Ω)
R max(Ω)
SCF005-0603R
Surface Mount Resettable PTCs
0603
0.05A
0.15A
15V
40A
0.5W
0.5A
0.1s
3.8Ω
30Ω

选型表  -  硕凯电子 立即选型

音特电子(Yint Electronics)自恢复保险丝(PPTC)选型指南

描述- YINT提供的正温度系数聚合物(PPTC)作为一种过流保护器件,可以减少保修,维护和维修成本。是异常过电流频繁区域设备或者高可靠性设备的理想选择。常被应用在消费电子,电源线,电信,I/O口,过程控制和医疗设备。

型号- 30V-050,SMD1206-005,250V-145,SMD0805-035,30V-600,1210,0805,72V-300,16V-110,16V-1000,SMD2920-300,SMD1206-110,SMD1812-075,SMD0603-100,6V-090,30V-185,SMD0805-020,16V-800,1812 SERIES,16V-120,SMD1210-110,SMD1812-160,SMD1206-100,600V-110,60V-300,250V-800,30V-075,1206 SERIES,SMD0805-010,250V-120,30V-500,6V-075,16V-250,16V-135,SMD2920-200,16V-1100,SMD1812-050,250V SERIES,SMD2018-100,16V-700,SMD0805-125,6V-185,600V,60V SERIES,250V-1400,SMD2920-075,72V-075,30V-135,SMD1812-300,30V-250,60V-005,250V-500,SMD0805-110,30V-800,60V-010,SMD2018-150,60V-250,SMD2018-030,16V SERIES,250V-060,72V-500,600V-060,2920 SERIES,250V-180,0603,1812,16V-1200,SMD1206-150,SMD1206-035,SMD2920-185,16V-160,60V-135,60V-375,60V-017,16V-600,SMD0805-100,60V-020,SMD1206-020,600V-030,SMD1206-025,6V-160,2018 SERIES,250V-600,72V-090,16V,2920,30V-700,60V-110,250V-040,600V-160,72V,600V-040,60V,30V-160,SMD1206-010,SMD1206-012,SMD2018,30V-040,16V-500,2018,250V-050,16V-185,600V-150,600V SERIES,250V-1200,72V-030,SMD0603-075,SMD2920,6V-135,60V-050,250V-300,6V-250,SMD2920-150,16V-075,SMD2920-030,72V-025,250V-2000,SMD1206-075,72V-040,SMD1812-110,16V-1400,72V-160,SMD1812-350,1210 SERIES,0603 SERIES,16V-400,6V-120,60V-065,60V-185,SMD1210-075,SMD2920-260,SMD1812-200,16V-090,72V-050,60V-025,30V-110,SMD0603-050,250V-400,30V-900,SMD2018-050,6V-110,60V-030,SMD2920-050,250V-080,600V-080,72V-185,72V-065,SMD0603,SMD1812,60V-160,60V-040,SMD1210-050,250V-1000,SMD1206-050,250V-090,16V-300,SMD1206-200,72V SERIES,30V-090,72V-110,SMD1812-260,SMD0603-035,SMD1812-020,SMD0805-075,6V SERIES,30V-400,0805 SERIES,SMD1210-020,30V,60V-090,600V-200,SMD1812-150,SMD0603-025,SMD1812-030,SMD2920-100,30V-300,SMD0603-020,SMD2018-200,250V-1500,250V-110,30V SERIES,SMD1210-150,SMD1210-035,250V,SMD1210-005,72V-250,72V-375,72V-010,SMD0603-010,SMD1812-125,SMD1206,60V-500,250V-200,60V-075,72V-005,SMD2920-250,SMD0805-050,SMD1812-010,SMD2920-125,72V-020,SMD0805,30V-200,SMD1812-014,1206,SMD1210,16V-900,72V-135,SMD1210-010,72V-017

选型指南  -  音特电子  - 2019/4/8 PDF 中文 下载

过流保护器件自恢复保险丝PPTC的优点是什么?

自恢复保险丝优点:自恢复保险丝常温零功率电阻可以作得很小,大电流产品只有几个毫欧姆,在路功耗较小,可以忽略不计、体积相对较小。自恢复保险丝可串联在易损电路内作过流保护、温度保险丝用,阻值突变速度快,在几个ms数量级,热容小,恢复时间短,耐冲击,可循环保护达8000次之多。自恢复保险丝可以作过温度保险丝用,因此在电路中在一定程度上体现出了温度保险丝性能和温度保险丝作用。达到在电路中实现过流保护和过温保护的双重保护功能。

技术问答    发布时间 : 2024-07-30

竞沃(TLC) 过流保护产品(PPTC/FUSE/ESD)选型指南(英文-详细版)

目录- company profile    PPTC Resettable Fuse Basic Characteristics    One Time SMD Fuse Base Characteristics    PPTC Resettable Fuse Series    One Time Fuse Series    ESD Suppressor Series    PPTC Resettable Fuse Cross Reference    SMD Solder Reflow Recommendations    SMD FUSE Cross Reference   

型号- FSMD110-1206R,SMD0805P110SLR,SMD0603P075SLR,SMD1812P300SLR,06 110,FSMD300-2920-R,1812L350SL,MICROSMD075F,RLD16P600GF,SMD1812P150TF/8,SMD1210P400SLR,FSMD075-R,FSL450LF-N,RXEF030,TLC-NSML750,TRE055,MICROSMD050F,MF-NSML700,FSMD150-12R,FRVL017-120F,FSMD370RZ,16R1100G,TLC-USML600,SMD1206P700SLR,TRE050,SMD0805P010TF,60R160,0603L150SL,MF-RX012/250U,06 100,RLD16P185BF,RLD30P090UF,1812L700SL,RLD30P135UF,72R090X,TLC-NSML500,RXEF040,SMD1812P850SLR,MINISMDC110F/16,12 100 1.5,RGEF800,MF-MFMF160,TLC-MSMD150,MF-USMF005,FRH110-250VF,FRU135-30F,FRH080-250VF,TRE040,LVR055S,PICOSMDCHOS,MF-LR190,30R090,MF-R500,TRA1400,MXP370,TRF600-160,FSMD200-1210RZ,FRK065-60F,TRB SERIES,FSMD110-24R,RUSBF185,FSMD050-1210-R,SLD270,RXEF250,TRE035,MF-MFMF150,FEMTOSMDC020F,TLC-MSMD160,SMD1210P005TF,TLV310,RXEF017,FRVL075-120F,TRC090,FSMD500RZ,RLD72P050XF,TRE030,SMD1812P050TF,RXEF010,TLV550,RLD60P375XF,PICOSMDC200LR-T,FSMD110-1206RZ,TLC-FSMD050,NSMD/L1206,FRG1200-16F,TRA900,15LR550,RXEF020,1210L380SL,TRE025,FRK250-60F,TLV300,SMD2920P050TF,12 113 0.25,RXEF025,TLC-NSML380L,TLC-LSMD500,TLC-MSMD020/60,TRE020,LVR033S,MXP190,RUSBF160,PICOSMDCOIOS,SMD0805P200SLR,TVS SERIES,60R375,SMD2920P185TF,FRU160-30F,60R135,NANOSMDC150F,TRC075,1210L200,FRVL025-120F,TRE010,TRF100,SLD250,TLC-NSML550,TRE017,TRE015,RLD16P500GF,FLR260F,1812L450SL,TLV730,TRE250,FRG700-16F,FSMD450-1210RZ,MF-S420,FRVL010-120F,TLC-MSMD110,MXP180,FSMD160-16R,RUSBF155,TRG SERIES,RUEF160,FSMD035-0805-R,FSMD020-R,TLC-NSML300,TRC065,SMD1206D012TF,FSMD175-1210RZ,PICOSMDC020S,RXEF005,1812L800SL,MF-RX014/250,LVR075S,SMD2920P030TF,SMD300F,SMD1206D110TF,FSMD020-1210-R,TLC-MSMD125,FRVL300-120F,FRV025-240F,MF-R300,MSML1812,TRA1200,60R110,FSMD110-16-R,FSR175F,FSMD020-0402RZ,MINISMDC110F/24,FSMD260-1210RZ,MF-MSML270,FSMD200-1210R,TRC050,FSMD250-2920-R,NSML1206,RUSBF135,SMD2920P150TF,MF-RX160/72,TLC-USMD075,MF-NSMF150,12 113 2.5,0805L110SL,LR4260F,TAL190S,MF-MSML260,TAL190N,RUEF185,TRC040,HVR250P080CF,FSMD050-0402RZ,1812L500SL,SMD1206P600SLR,FSMD010-0805-R,FRU250-30F,TLC-MSML700,SMD1210P300SLR,TLC-MSMD110/24,RUSBF120,RGEF400,HVR250P180CF,TRF018U,TLC-PSMD024,TRC030,1206L380SL,TRB185,TLC-PSMD020,SMD1812P400SLR,RLD06P075BF,FSMD012-1206-R,TLS420,TRA090,RGEF1100,TLC-NSML450L,12 100,1206L260SL,SMD2920P250TF,MF-USML190,SMD100F/33,RUEF800,FSMD160-12R,FSMD075-0805RZ,LRD550F,RUSBF110,TLC-MSMD110/16,MF-PSML175,TRC020,TLC-PSMD035,TRE200,TLC-USMD050,TRC025,12 113 0.375,SMD1206D150TF,3GK SERIES,3GM-C,FSMD175-1210R,MINISMDC300F,1812L270SL,FRV033-240F,TRC017,MF-R900,30R250,MF-MFMF020/60,PICOSMDC050S,MF-RX090/72,TLC-USMD020,TRC250,TRA075,TRC010,16R300G,FRVL375-120F,SMD1210P260SLR,15LR380,MF-R090-0-9,FRV016-240F,TLS200,12 110 1.5,TRB160,TAL250,MF-PSML150,TRM150,SMD125F,MF-USML175,TRC005,FRG600-16F,RLD16P700GF,TLC-PSMD010,TRA065,12 113 0.5,MF-NSMF110,RLD30P300UF,TLC-USMD035,MINISMDC075F/24,SMD1812P900SLR,RLD60P090XF,RLD60P135XF,TLC-LSMD300/24,TAL260,0805L1750SL,06 100 0.375,MF-RX012/250,TLC-MSML900,1812L150/24,FSMD020-60-R,MF-USML380,SRP 2000F,TRA050,USMD1210,LR4190F,TLC-USMD005,LSMD2920,1812L600SL,MF-RX025/72,TRM SERIES,TAL270,ASML0402,1812L150/12,STD120F,SMD1206P175SLR,FSMD075-24R,TLC-NSML700,TRA040,1210L175SL,FRG1300-16F,FSMD270RZ,RGEF600,TLC-PSMD075,FLR190F,TRB135,TRM125,TLC-USMD010,TD350-1,TD350-2,FSMD160-R,1210L260SL,TAL280,SMD1210P075TF,FRV008-240F,FSMD600RZ,MF-R700,RLD72P300XF,FSMD050-2920-R,FSMD260-24-2920-R,1812L370SL,TRA030,TRB120,RXEF 300,0603L050SL,12 110 3.5,TLC-USML190,RLD16P800GF,RLD30P400UF,60R185,TLC-PSMD050,TRA025,SMD1206P550SLR,3GF SERIES,1206L175SL,TRA020,06 110 2.5,RLD16P250BF,TLV900,TRB110,FSMD260R,12 113,TRM100,12 110,FRG300-16F,SMD1812P650SLR,MF-S175,TVS175N,SMD1206P260SLR,TLC-LSMD050,FSMD014-R,SMD1812P075TF/24,TRA017,MF-PSML200,STD175F,FRVL065-120F,TLC-PSML380,TLC-FSML100,15ST175,FSMD400-1210RZ,TRA250,NSMLXXXL1505,2920L050,TLC-MSML300,TRA010,PC01050,12 110 4.5,TVS210,72R375X,TLC-NSML190,TLC-USMD200,MF-NSML260,TLC-NSML400L,TLC-PSML150,MINISMDC010F,MF-RX110/72,SMD1812P075TF/33,USML1210,06 100 0.5,16R700G,TRA005,NANOSMDC200F,TLV190L,1206L300SL,TLC-FSML110,TLC-MSML550,SMD1206P500SLR,1210L075,FSMD050-1206-R,FRU090-30F,TVS200,MF-MSML600,TLC-USML175,MF-R090,RLD60P160XF,SMD0805P150SLR,TLC-LSMD075,RLD06P155BF,FLR550F,MF-R065,MICROSMD005F,TLC-USML380,FSR200F,SMD1206P650SLR,SMD1812P260SLR,RLD16P1200GF,SMD1210P600SLR,TRF250-145U,MF-RX065/72,2920L030,RLD16P900GF,PICOSMDC035S,FSML0603,TLC-NSML175,250R120,FRVL100-120F,VTD210F,RLD06P120BF,FSMD190RZ,72R020X,MF-R075,SMD0805P300SLR,SMD260F,SMD1206P110SLR,1812L300SL,0805L075SL,FSMD075-2920-R,TLC-USML150,TVS230,MF-USML450,TRF250-120U,MICROSMD200F,0805L260SL,SMD1210P750SLR,LRD730F,TLC-NSMD200,30R300,RLD72P110XF,MF-USML200,1210L550SL,RUEF300,TLC-LSMD260/24,TAL410,MF-LSMD185/33X,FSL270F-N,MF-RX375/72,TLC-LSMD250,TRF014U,SMD1206P350SLR,FSR420F,TLC-NSMD035,30R500,TLC-FSML150,FSMD035-0603RZ,TLC-MSML500,TRB300,MF-USML650,MF-LR730,LVR008S,1812L200,MF-MSMF030,PICOSMDC260LR-T,FSMD125-R,MF-LL190,250R145,TVS170N,MINISMDC014F,MSMD/L1812,FSMD100-2920-R,PICOSMDC075S,TLC-NSMD020,TLC-NSM

选型指南  -  竞沃  - REV. 1  - 2020/7/29 PDF 英文 下载

什么是自恢复保险丝?

自恢复保险丝是一种过流电子保护元件,采用高分子有机聚合物在高压、高温,硫化反应的条件下,搀加导电粒子材料后,经过特殊的工艺加工而成。自恢复保险丝(PPTC:高分子自恢复保险丝)是一种正温度系数聚合物热敏电阻,作过流保护用,可代替电流保险丝。 电路正常工作时它的阻值很小(压降很小),当电路出现过流使它温度升高时,阻值急剧增大几个数量级,使电路中的电流减小到安全值以下,从而使后面的电路得到保护,过流消失后自动恢复为低阻值。 传统保险丝过流保护,仅能保护一次,烧断了需更换,而自恢复保险丝具有过流过热保护,自动恢复双重功能。在习惯上把 PPTC(PolyerPositiveTemperature Coefficent)也叫自恢复保险丝。其效果与开关元件类似,只是响应速度较慢。

技术问答    发布时间 : 2024-07-30

自恢复保险丝(PTC)的ITRIP电流的意义是什么?

Itrip可以叫做跳变电流,就是指电流超过该值时,电阻会出现大幅增加。其作为自恢复保险丝特有的重要参数,在设计选型时要格外重视。

技术问答    发布时间 : 2017-09-26

【选型】国产自恢复保险丝用于IPC客流摄像头电源输入过流防护设计,2920封装,待机功耗0.065~0.41W

为避免IPC客流摄像头电源输入因负载短路异常造成燃烧风险,一般在电源输入加一颗自恢复保险丝做过流保护设计,推荐选择竞沃电子自恢复保险丝TLC-LSMD100,2920封装,最大额定工作电压33VDC,常温25℃下保持电流1A,可承受最大故障电流40A。

器件选型    发布时间 : 2023-02-08

PPTC自恢复保险丝在玩具中的重要性

玩具的过温、过流保护方面,以前多应用玻璃保险丝、温度保险丝、保险电感、保险电阻等,但他们都是一次使用,需要频繁更换,不能完成标准规定的“自动恢复热断流”功能,而且设计不好将会起到反作用。有人设计应用双金属温控器,但双金属温控器只对温度起作用,而且热反应太慢、忘了关电源时会再次接通故障电路扩大故障。要达到“自动恢复热断流”目的,应用“PPTC自恢复保险丝”做过温、过流保护才是目前最佳的选择。

技术探讨    发布时间 : 2023-11-12

Downstream Manufacturing Site Change for PolySwitch® Surface Mountable PPTC (41429)

型号- NANOASMDC010F-2,TS SERIES,RF4927-000,RF1694-000,MICROASMDCH125F-2,E72246-000,D48481-000,RF0315-000,ASMDC030F-2,SETP0805-100-SE-2,RF1406-000,RF0323-000,E44331-000,RF4919-000,SMD300F-2,PICOASMDC,MICROASMD005F-2,RF2149-000,RF1348-000,RF1518-000,RF4564-000,AHS200-2,TSM600-250F-RA-2,RF5051-000,NANOSMDC050F/13.2-2,SMD300F/15-2,TS600-170F-2,MINISMDC110H/24-2,RF1511-000,MICROSMD050F-2,RF2150-000,RF5027-000,RF2494-000,RF1905-000,PICOASMDCH020F-2,SMDH160-2,MICROASMD,RF4920-000,PSR-28038-2,RF3182-000,RF1179-000,RF1437-000,MICROSMD200F-2,RF4572-000,RF2285-000,RF2157-000,RF4525-000,MINI SMD,RF1631-000,ASMD100F-2,RF1864-000,MINIASMDC260F/13.2-2,RF1638-000,PICOSMDC020S-2,RF1405-000,SMDC,RF0316-000,SMDC300F/24-2,RF4918-000,RF0324-000,NANOASMDCH016F-2,ASMD250F-2,PSR-28158-2,FEMTOSMDC016F-2,MICROSMD,RF1632-000,RF2286-000,MICROASMDCH150F-2,MINISMDC160F-2,RF0764-000,RF1180-000,NANOSMDC025F-2,ASMDC075F-2,MICROSMD005F-2,RF1347-000,ASMDC300F/24-2,RF2148-000,SMD150F-2,SMD150F-2018-2,SMD185F-2,TS250-130F-2,PICOASMDC012S-2,ASMD150F/33-2,NANOASMDCH005F-2,NANOASMDC035F-2,ASMD030F-2,NANOASMDC012F-2,E18772-000,ASMD200F-2,NANOSMDC200F-2,ZEPTOSMDC,PSR-28498-2,SMD200F/24-2920-2,RF2158-000,RF4565-000,NANOSMDC075F-2,PICOSMDC035S-2,ASMD075F-2,RF4983-000,RF1637-000,MINISMDC150F-2,FEMTOSMDC005F-2,RF1342-000,RF4571-000,TSL250-080F-2,SMD100F/33-2,NANOASMDC,RF1686-000,RF2487-000,PICOASMDC035S-2,PSR-29470,PSR-29595,MINIASMDCH050F-2,PSR-29596,ZEPTO 0201,RF3927-000,RF4570-000,RF4562-000,RF0317-000,RF2287-000,AHS,RF0309-000,RF1358-000,SMDC030F-2,NANOASMDCH035F-2,MICROSMD110F-2,MINIASMDC014F-2,RF5005-000,MINISMDC260F/13.2-2,RF3102-000,RF1696-000,RF1238-000,RF5033-000,RF0313-000,NANOSMDC035F-2RF4520-000,ASMDC050F-2,RF4821-000,SMD,RF3696-000,RF5064-000,TS250-130F-RA-2,RF2151-000,MINISMDC100F-2,SMD150F/33-2,RF1351-000,RF2147-000,RF0422-000,SMD200F-2,PICOSMDC110S-2,MICROSMD035F-2,RF1185-000,SMDC075F-2,MINIASMDC200F/16-2,RF2159-000,PSR-27331-L-2,RF2573-000,ASMD,PSR-24703F-2,AHS160-2,RF0322-000,PSR-29460,RF3835-000,PSR-29340,RF4929-000,PSR-29464,PSR-29465,RF1467-000,PSR-29466,RF1471-000,RF1644-000,RF1343-000,SMDC185F/33-2,TS250-130F-RB-2,PSR-29467,PSR-29468,PSR-29469,MINISMDC010F-2,MINIASMDC075F/33-2,TSL250-080F-B-0.5-2,RF1359-000,TS250-130F-B-0.5-2,RF5006-000,RF3677-000,MICROASMD010F-2,RF0308-000,TS600-400F-2,MICROSMD175F-2,RF1350-000,RF2146-000,ZEPTOSMDC0015F,TERMINAL SMD,E07878-000,NANOASMDC020F-2,RF5040-000,SMD050F-2,TSM600-250F-2,RF0314-000,RF1989-000,MINISMDC150F/12-2,PICOASMDC110S-2,RF5029-000,RF5034-000,MINISMDC125F-2,MICROSMD050H-2,RF1695-000,RF4914-000,RF2926-000,RF4563-000,AHS300-2,RF4520-000,MINISMDC110F/16-2,PSR-29326,RF4820-000,A05570-000,RF2152-000,FEMTOSMDC020F-2,PICOASMDC050S-2,TS250-130F-RC-B-0.5-2,NANOSMDC110F-2,RF1639-000,MINISMDC020F-R-2,PICOASMDCH010F-2,RF4921-000,MINISMDC020F-2,RF4778-000,SMDH120-2,DECASMDC050F/60-2,RF4441-000,RF1344-000,RF4915-000,MINIASMDC075F/24-2,FEMTOSMDC008F-2,MINIASMDC050F-2,PICOSMDC,D83387-000,MINISMDC300F-2,RF4298-000,ASMD050F-2,A88766-000,MINIASMDC260F/16-2,RF0321-000,NANOSMDC016F-2,MINIASMDC150F/16-2,RF4161-000,RF1338-000,MICROASMDCH075F-2,PSR-29264-C,RF4439-000,TS600-200F-RA-B-0.5-2,MICROSMD010F-2,RF5031-000,RF5112-000,NANOASMDCH050F/24-2,RF4897-000,ZEPTOSMDC0011F,RF5023-000,RF4560-000,RF2145-000,RF2587-000,PICOSMDC050S-2,RF4269-000,SMD250F/15-2920-2,MINISMDC075F/33-2,MINISMDC075F-2,SMD200F-2018-2,RF2153-000,RF0319-000,RF5062-000,FEMTOASMDC010F/15-2,RF4559-000,MINISMDC260F/12-2,SMDC050F-2,MINISMDC125F/16-2,MINISMDC030F-2,MINIASMDC125F/16-2,MINISMDC150F/24-2,MINISMDC200F-2,RF0320-000,NANOSMDC020F-2,RF1345-000,SMD075F/60-2,FEMTOSMDC010F-2,RF0311-000,NANOASMDCH010F-2,RF1689-000,AHS300F/24-2,MINISMDC110F/24-2,RF4818-000,SMD260F-2,RF5055-000,RF1411-000,RF1691-000,RF2161-000,RF1183-000,RF4568-000,RF4916-000,NANOASMDC016F-2,NANOASMDC050F/13.2-2,FEMTOASMDC008F-2,TS,RF4561-000,MINIASMDC030F-2,SMD030F-2,RF1464-000,PICOASMDCH035F-2,FEMTOSMDC,TLINE,SETP0805-100-CC-2,DECASMDC,NANOSMDC010F-2-S,RF0318-000,RF1403-000,RF2154-000,MINISMDC150F/16-2,RF1636-000,RF1352-000,RF3101-000,RF4938-000,RF5032-000,RF1409-000,RF3695-000,RF4576-000,RF0312-000,PICOASMDC075S-2,RF4558-000,RF1346-000,ASMD185F-2,RF4575-000,MICROSMD150F-2,MINISMDC110F-2,SMD250F-2,MINIASMDC150F/24-2,PICOSMDC075S-2,RF1336-000,RF1184-000,TS250-130F-RA-N-2,RF1353-000,MICROASMDCH110F-2,C27178-000,MINIASMDC075F-2,FEMTOSMDC010F/15-2,RF1410-000,SMDC125F/33-2,SMD150F/33-2920-2,RF4793-000,RF5105-000,MINISMDC260F-2,SMD100F-2,RF1479-000,MINIASMDC150F/12-2,RF4917-000,NANOASMDCH035F/30-2,A88390-000,RF2160-000,MINIASMDC260F/12-2,RF5054-000,NANOSMDC,F59779-000,TSV250-130F-B-0.5-2,RF2169-000,RF4898-000,PICOASMDCH016F-2,MINIASMDC110F/16-2,TSM600-400F-2,FEMTOSMDC035F-2,RF1404-000,RF2376-000,FEMTOSMDC012F-2,AHS120F/33-2,RF1633-000,NANOSMDC150F-2,RF1181-000,RF2155-000,RF3692-000,RF1641-000,RF1692-000,RF4569-000,FEMTOASMDC005F-2,RF1335-000,RF1378-000,PICOSMDC012S-2,SMD030F-2018-2,RF1432-000,RF1408-000,PICOSMDC110S-A-2,NANOSMDC035F-2,RF0325-000,MINIASMDC020F-2,MINISMDC200F/16-2,MINISM

产品变更通知及停产信息  -  LITTELFUSE  - Mar 1st 2022 PDF 英文 下载

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VC散热器定制

可定制均温板VC最薄0.4mm,有效导热系数超5,000 W / m·K(纯铜(401 W/m·K ,石墨烯1,200 W/m·K)。工作温度范围同时满足低于-250℃和高于2000℃的应用,定制最低要求,项目年采购额大于10万人民币,或采购台套数大于2000套。

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