【应用】Littelfuse推出的POLYFUSE®系列径向引线型自恢复PTC 30R400U在智能网关中的应用
网关为一个小型局域网的核心部分,如果运行异常,导致整个网络内的其他设备无法被控制和使用,PTC 30R400U是 LITTELFUSE公司推出的30R系列POLYFUSE® 无铅径向引线型自恢复PTC,应用于网关供电系统,在遇到异常之后,切断供电,保护网关,在供电正常之后自动恢复工作。
对于通用型网关来说,需要的供电电压最高12V,所以在保护器件上面选择不会太高,30R400U支持的电压为30V,在系统正常工作的情况下留有余量;网关上面会包含MCU + USB接口 + WIFI(其他无线通信方式) + 4G等等,电流不会超过3A,30R400U支持4A工作电流,
刚好满足网关的应用。
对于网关的保护系统来说,当电压或者电流超过PTC设定的额定值的时候,需要快速对网关进行保护,断开供电,PTC 30R400U最快反应时间仅为0.02s,对器件进行保护:
在供电恢复正常之后,PTC 30R400U取消保护,网关继续工作。
PTC 30R400U工作温度系数稳定,随温度变化,保护电流呈线性变化:
PTC 30R400U不仅仅适用于网关系统的保护,也可以应用同等电气性能下的其他产品设计。
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Littelfuse(力特) 正温度系数(PTC)热敏电阻选型指南
目录- 特性和术语 应用和电路保护典型设计 选择工作表 表面贴装型 径向引线型 轴向引线型
型号- 30R135UU,72R300XF,1210L075/24PR,30R090UU,600R160-R1UR,1206L025YR,1812L,1812L350SL,1812L010/60DR,0603L050SLYR,2016L075/60,600R160-RAF,72R160XMR,0603L010YR,60R185XMR,1210L150TH,0805L110SLYR,16R1100G,1210L450SLWR,0402L050SLKR,0603L150SL,30R160UPR,1812L020PR,1206L110/12SL,2920L300DR,1206L175SLYR,72R090X,16R400GPR,16VT210SU,0805L260SLTH,1210L175WR,1812L200/12,LORHO,250S130¨CRCDR,30R300U,1812L200/16,16R1000GF,0805L100,16R250GU,20LR450,250R145-RA,2016L075/60MR,30R090,250R145-RAU,0402L020SL,2920L500/16,1206L260SLTHYR,1812L110/33MR,250S130¨CRC,250S130¨CRB,250S130¨CRA,16R135B,60R110XU,250S130V,2920L330/24MR,0603L075SL,0805L110,1206L175PR,250R145-RB,0603L,1206L012WR,16R500GU,24LT100,1812L150/12DR,1812L200/16DR,16R185BU,1210L380SL,600R160-RAUR,250S130¨CRBDR,30R800UH,15ST175U,250R145ZR,600R160F,16R1000G,16R110BPR,1206L380SLTHYR,16R250GPR,250R120-R3U,600R150-RA,600R150-RB,60R250,60R010,1812L075/33,250R120-R3,250R120-R2,250R120-R1,1210L200,1812L260/16MR,30R250UPR,72R135XMR,16R600GDR,1210L400SL,1206L300SLTHYR,30R700UMR,1206L450SL,250R120-RF,1206L200SLYR,250R120-RC,250R120-RA,0603L035YR,250R120-R2U,0603L175SL,1210L300SLYR,16R800GMR,60R375XH,16R110B,1812L190SLPR,16R1100GF,250R120TU,0805L075SLYR,16R1200G,250R120-RFZR,0402L,2920L200DR,2920L300,600R150F,2920L700SL,250R120-R1U,30R700UF,1210L075YR,2920L700SLPR,1210L110/16WR,60R110,1210L175SLYR,0805L010/24,16R600GU,2920L075/60MR,30R400U,60R050X,72R,60R,0402L010SLKR,72R090XPR,1206L050/15,1206L150SLYR,72R185XMR,2920L260PR,72R250XMR,1206L450SLWR,60R010XU,16VT210S,30R185,1812L075/24,1206L110SL,16R700GKLMR,1206L110TH,60R075X,LT SERIES,0603L100SLYR,1812L370SLPR,16R160BU,0805L110SL,60R025XPR,60R160X,0805L200SLTHYR,30R090UPR,2920L260/24,15LR380U,2920L,2920L185DR,16R500GPR,250R120T,60R090XPR,250R120U,30R300UU,1812L270SLPR,60R300X,1812L300SLPR,30R600U,72R075XU,0603L075SLYR,15LR260U,2016L,0402L020SLKR,06R075BU,06SL370GM,1206L075/16WR,1812L260SL,60R020XPR,20LR730,250R180MR,2920L330/24,06R155BPR,06SL190G,72R040XU,16R400G,1210L110THYR,2920L030DR,1812L160PR,2920L260/24DR,1812L075/33DR,1812L260TH,1210L035YR,1812L270SL,16R135BPR,1206L020YR,1206L075/13.2,30R250,0805L200SLTH,1812L050PR,600R150-RBF,0402L035SLKR,30R600UF,1210L350SL,16R300G,1206L075/13.6,72R075XPR,15LR260,15LR380,16R300GPR,30R185UPR,16R700GF,1812L014DR,60R160XMR,250R145U,0805L,1206L075SL,30R090U,2920L150DR,0805L050WR,1206L150TH,1812L200/12DR,0402L035SL,600R150-RAF,250R145T,1206L150SL,72R300XMR,1206L400SLWR,72R160XF,1812L150/24MR,30R500U,72R030XPR,2920L075DR,1206L075TH,1210L010WR,1812L350SLPR,LR,LT,1812L160/12DR,1812L150/24,60R025XU,2920L400/15MR,16R700GMR,0805L150SLYR,72R050XU,30R,16R1100GMR,60R010XPR,60R090,2920L200/24,1206L035YR,250R145-RBU,1206L050/15YR,16R800GF,1812L150/12,2920L400/15,VT SERIES,30R700U,1210L175SL,250R145TZR,0603L020YR,250S130¨CRADR,30R400UF,0805L300SL,1812L020/60,2016L050,1210L260SL,2016L050MR,16R250BU,1210L110/12WR,1812L010/60,06R120BPR,1812L075PR,30R400UMR,72R065XPR,60R135XF,SL SERIES,0805L010/24YR,16R250BPR,1812L370SL,30R160UU,20LR450U,0603L050SL,60R090X,1206L035/16,1210L020WR,1210L110/16,600R160-R1F,0402L010SL,250S130DR,60R185,24LT100U,72R020XPR,1206L150THWR,1210L380SLYR,1206L175SL,16R700GKL,72R300X,2920L050DR,2016L030,60R090XU,1210L110/12,2016L150,250R120ZR,16R185BPR,60R017XPR,1812L75/33,60R110XMR,1206L035/16YR,60R075XPR,60R025X,15ST175,250R180TMR,1812L150ZR,2920L050,1210L005WR,72R375X,1812L260THDR,1812L200THPR,72R050XPR,1812L125/16,12VL175XLU,0805L010YR,30R500UF,1812L75/24,16R700G,16R700GKLF,60R135X,2920L185,60R110X,1210L075,1812L160/12,16R900GF,1812L110,600R150-RBZR,600R,1812L125/6,60R040XPR,250R120-R1ZR,250R120-RFU,16R600G,2920L030,2920L150,30R800U,2016L100,1812L035/30DR,1812L075/24DR,16R135BU,250R120,30R185UU,SL,1812L010DR,2920L125PR,1206L200,1206L050YR,30R185U,ST,0603L150SLYR,1206L380SLTH,60R160XF,72R020X,30R600UMR,1812L300SL,60R050XU,0805L075SL,0805L260SLTHYR,72R250X,06SL370G,30R300,2016L075/060,1210L175,72R020XU,1812L260SLPR,250R180TF,16R1400GH,16R090BU,250R120-RAZR,0805L150SL,1812L050/30PR,30R160U,1210L260SLYR,60R065XPR,0805L020YR,1210L,1206L350SLTHYR,60R017X,1206L075SLYR,1206L110THYR,72R040XPR,2920L250DR,30R500,1210L110TH,1812L110/24DR,250R120-RCU,2016L200,0603L050YR,0805L300SLWR,1812L200,06R155BU,72R250XF,250R145,60R017XU,1812L020/60DR,1812L035/30,0603L050,1812L125/6PR,30R400,1206L400SL,60R030XPR,1210L350SLWR,60R300XF,VL,1206L260SLTH,06R120BU,72R065XU,1812L300MR,1210L400SLWR,VT,1210L450SL,16R,2920L500/16MR,1206L300SLTH,2920L075,250R120-RAU,72R030XU,250S130-RC,250S130-RB,16R110BU,250S130-RA,1812L300,2920L100PR,250S130,30R110UPR,30R250U,1206L110/12SLYR,0805L175SLYR,72R135X,0805L075WR,1206L016,16R500G,1206L150/12SL,0603L175SLYR,30R250UU,30R900U,16R900GMR,72R185XF,16R090B,1206L012,1206L075/13.2WR,600R150-RAZR,72R110X,1210L075/24,72R025X,0805L050,60R065XU,72R075X,1210L300SL,72R160X,0603L020,250R080ZR,72R090XU,1210L200SLYR,250R120TZR,60R185X,0603L025,0805L100WR,06R120B,2920L200/24DR,250R180,30R135U,60R040X,1206L025,06SL190GM,600R160-RA,72R135XF,06R075BPR,1206L020,1210L005,600R160UR,250R145-RBZR,12VL175XL,6
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型号- PSR-28542,MICROSMD200LR,MINIASMDC260F/12,PSR-24184,SRP200,VTP200F,RHE1500,MINIASMDC260F/16,SMD200F/24-2920,RUE250,RXEF030,NANOSMD175LR,RSD310,RHEF650,RTEF135,PSR-25036,PSR25374,RHEF410,LR4-310F,NANOSMD350XLR,PSR-28786,TSM600-400,PSR-28547,PSR-28548,PSR-28308,SMD075/60,SPCB420LR,PSR-27623-025,VLP210,PSR-28311,PSR23198,72R090X,PSR-27623-020,SPK130,PSR-25280,SMDC310F/18,NANOASMDCH020F,RXEF040,LTP070,AHEF750,RGEF800,PSR-28799,PSR-28558,VLP220,MXP370,TRF600-160,PSR-28762,PSR-27673,MICROASMDCH035F,PSR-27623-050,SRP420,LR4-550ULLF,RUSBF185,SMDC125F/33,MGP500,PSR25105,RXEF250,TRF250-080U,VTP200NI,TRF250-080T,PSR-27679,PSR-27678,PSR25594,FEMTOSMDC020F,PSR25595,AHEF300,PSR25351,PSR25593,PSR-27674,PSR-28521,PSR-28763,BBR550,RXEF017,PSR-28764,SMD075,PSR-28765,LRP450,PSR-28527,RXEF010,VTP140,AGRF1200,TR250-110U,ASMD150F/33,TCF250-180,VTP145,SMDH160,MICROASMDCH010F,PICOSMDC200LR-T,PSR25115,RGE250,RXEF020,MGPC290,PSR-25028,RHEF200,AHRL450,PSR-23089,RXEF025,TS600-170,VTP150,MXP190,RUSBF160,SMDCH050F/24,SMDC075F-2920,MINIASMDCH050F,LVRL075,PSR-24380,AHS080-2018,RHE1300,PSR-24734C,NANOSMD380LR,PSR-28507,LVR075,PSR25571,MXPW310,MINISMDC200F/16,PSR-28502,NANOSMDM050/13.2,AGRF900,MINIASMDC075F/24,PSR-28506,SMD050,TRF600-150,MXP180,TS600-400F,MINISMDC200,MICROASMDCH125F,RUSBF155,PSR25338,MICROASMDCH016F,PSR25579,RUEF160,PSR-27669,LR4-380,PSR24251,PSR-24157,MINISMDM110,RXEF005,RTEF190,PSR-24361,PSR-27871,PSR-24362,PSR-24360,RXE090,RHE900,PSR-27635,30R400U,PSR-25452,AHEF100,AGRF1400,PSR-28720,BBR350,SMD030,VLP270,PSR-25461,AHRL650,RUSBF135,PSR-26791,PSR-26790,MGPP420,TCF250-145,PSR-26558,PSR-27888,FEMTOASMDC010F/15,PSR-25468,PSR23382,RHEF400,LR4-1340,LRP260,SMDH120,VTP110,SMD260,MINIASMDC075F/33,PSR-28735,RUEF185,PSR23349,MINISMDC260F/16,PSR-29231,PSR-29232,PSR24673,MINISMDC014,60R300X,PSR24432,AHRL400,PSR-27294,RGEF400,RUSBF120,TR600-160Q,MINISMDC020,MINISMDC260,30R600U,PSR-28148,PSR-28149,RGEF1100,AGRF700,SMD250,RUE090,MINISMDM160,FEMTOASMDC008F,RUEF800,LR4-73X,MGPC300K,PSR-28155,TC250-145,RUSBF110,SMD150F/33-2920,VLR170U-C30F,PICOASMDC110S,PSR24690,NANOASMDC050F/13.2,TR250-090,MINISMDC300F,PSR24659,ASMDC125F/33,PSR-25091,PSR-28120,LR4-1300,PSR-28124,MINISMDC035,NANOSMDC300LR,PSR25982,PICOSMDC050S,MINISMDC075F/33,16R300G,MGPR420ZKAII,PSR24660,PICOASMDCH020F,PSR-28127,LR4-810HF,PSR24669,PSR-29460,AHRL1100,30R090U,PSR24661,PSR25750,PSR-28764-A,PSR25751,PSR-26194,RGE400,PSR-23925,TSM600-250,PSR-28343,LR4-550,AHRL600,RHEF450,TAC210,RKEF075,AGRF500,PSR-28108,PSR-25080,MLP370,PSR-28110,PSR-28594,PSR-28595,RHEF1400,PSR23310,PSR24883,ASMD050F,MINISMDC050,RKEF065,RGEF600,SMD030-2018,SMD200,MXPR250,MINISMDC350LR,PICOSMD110F,ZEPTOSMDC0015F,PSR23528,PSR-28561,MGPP270,PSR-28321,RKEF090,ASMD075F,PICOASMDC020S,NANOSMDM016,AHEF500,NANOSMDM012,RSD370,TR250-080,LVR025/240,PSR-28575,RHE750,VLP220N-C30F,PSR-26155,NANOSMDC110,PSR-28762-A,ASMD185F,PSR25710,RTEF120,MGPC370-C315,RGE600,MINISMDC260/12,MINISMDC075,NANOSMD600XLR,MGPP550-L,NANOSMDM020,TS250-130,DECASMDC050/60,PSR-28577,PSR-29426,FEMTOASMDC005F,PSR-28339,RUSB155,MINIASMDC010F,SMD075-1812,NANOSMDC125,ASMD150F,RXE110,SMD150-2018,PSR-25957,TSL250-080,LR4-700(E70),LR4-900,MINISMDC010F,16R700G,AHS200,LVRL200,NANOASMDC025F,LVR200,PSR-27907,RUSB135,PSR-27906,PSR-25968,PSR-27905,MINISMD075,AHRL900,PSR-29054,SMD100-2018,TAC170-0425,MICROSMD600LR,PICOSMDC010S,TR600-XXX,LR4-600-C100F,TRF250-145U,PSR-23753,NANOSMDC150,PICOSMDC035S,30R800U,250R120,NANOSMDM050,PSR-24849,RGE1200,TAC170-A09,30R185U,LR4-170F,MINISMDC190LR,72R020X,NANOSMD400XLR,MICROSMD110,NANOSMD550LR,PICOSMD050F,RUSB120,TRF250-120U,MICROSMD200F,RUE700,PICOASMDC075S,RSD400-L,NANOSMDC160,RKEF160,PSR-25708,RUEF300,PICOSMD075F,ASMDC185F/33,RGE800,30R160U,MINIASMDC200F/16,PSR-27313-110,60R017X,MINIASMDC014F,VSM-A001,MXP370KJ,RKEF110,VLR170ULL-C30F,PICOASMDC050S,NANOSMDM075,RHEF050,PICOSMDC260LR-T,MINISMD020,TC250-180,250R145,AHRL1400,RSD310BD,RHEF1000,RUSB185,PICOSMDC075S,SMDCH200F/24,TR250-180U,LVR008N,RXE300,FEMTOSMDC005F,NANOSMDCH110F,MINISMDE190,SMDC300F/24,RHE100,TSV250-184F,LR4-970,MXP250K,NANOSMD300XLR,RGEF300,RKEF375,SMD300F/15,RGE1400,RHEF070,SMD150/30,30R250U,SMD150/33,MINISMDC075/24,RKEF135,FEMTOSMDC008F,72R135X,RSD500-L,PSR23935,PSR-29263,RUSB160,MICROSMD450LR-C,PSR-29264,RUEF500,MGP420K,MICROSMD150,TSM250-110F,16R500G,RUE900,PSR-21436C,VLP220UW-C24F,MGP420Z,SMDCH075F/24,72R110X,SMDC100F/60,MGPR400K,PSR-26647,60R185X,PSR-24466,MINISMDM110/16,PSR-27974,250R180,RUEF135,LVR033,PSR-28823,VLP175,VLR110,MICROSMD400LR,MICROSMD175,NANOSMD450LR,RXE185,NANOSMD450XLR,MGPP400,PSR-26658,PSR-26653,LVR040,06R155B,SMDC185F/33,RKEF300,MGP270ZRW,MICROASMDCH075F,RHEF700,60R030X,MINISMDM075/24,NANOASMDC020F,MGPC270W,NANOASMDCH005F,LVR055,PSR-26627,MICROASMDCH050F,TSM250-130F,RXE160,RUE300,MXP270ZLL,RSD600-L,16R900G,PSR-27721,LVR005N,PSR-24693,VLP190,RSD310-C2.4X3.2,MLP500,PSR-27727,TAC170-09,RUEF250J,RUSB110,NANOSMDC025F,NANOSMDC110F,PICOSMDC012S,NSNOASMDC016F,RUEF250U,PSR-21436HL,ASMD200F,PSR-26843,PSR-22240,60R250X,PSR-25757,PSR-26846,LVR008,RUE250U,
【选型】Littelfuse(力特)保险丝座选型指南
目录- Fuse Characteristics, Terms and Consideration Factors Fuse Selection Checklist PTC Characteristics and Terms PTC Product Applications Typical PTC Circuit Protection Designs Fuse Standards Fuse and PTC Products Selection Guide Fuse Packaging and Part Numbering
型号- 1812L,471,230,472,473,232,233,234,235,477,874,875,876,239,877,2016L,461E,485,LORHO,400,157T,369,804,807,808,600R,437 SERIES,USBR,370,251,372,373,494,253,374,2205,SL,0603L,0805L,ST,382,262,383,263,385,265,266,267,268,269,303,429,1210L,LR,LT,391,1206L,392,272,273,274,395,154,275,396,397,398,157,278,399,219XA,279,312,950,313,30R,159,314,435,315,437,438,318,LORHO PTC,160,285,440,250S,441,250R,322,443,202,203,324,VL,325,446,326,447,448,449,208,209,VT,16R,451,452,332,453,154T,454,213,456,215,72R,216,458,60R,217,459,218,977,460,461,220,462,464,465,224,466,225,467,468,501,469,229,505,506,2920L,508
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。
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【视频】2023年7月27日功率器件新技术研讨会
虹美、扬杰科技等国产IGBT新锐与思瑞浦、EPC等厂商发布SiC、GaN等2023全新功率产品与新技术。助力产品实现更高功率密度/更高效率/更小体积。
活动 发布时间 : 2023-11-29
全品类Littelfuse力特车用电路保护器件:TVS、保险丝、自恢复PTC、压敏电阻
Littelfuse力特是业界车用保护器件种类最齐全的制造商。旗下具有汽车级TVS/TVS阵列、AECQ合规保险丝、汽车级自恢复PTC、汽车级压敏电阻等车用电路保护器件。广泛应用于汽车通信和信息娱乐系统、车载网络系统及车身、底盘与安全系统、先进驾驶辅助系统、传动系统、新能源汽车等。世强是Littelfuse力特官方授权一级分销商,可供应Littelfuse力特车用电路保护器件,库存丰富,价格优惠。
原厂动态 发布时间 : 2018-10-15
半导体先锋维安(WAYON)授权世强硬创代理分销,产品或实现替代
维安(WAYON)旗下拥有PTC、FUSE、SCF、TVS、ESD、OCP、OVP、E-FUSE等电路保护产品,以及MOSFET、Diodes、Transistors、SiC SBD、Automotive等功率产品,覆盖工业与物联网、消费类电子、新能源,网络通信、汽车等行业。
签约新闻 发布时间 : 2023-09-12
宏明华瓷携MLCC、PTC等产品亮相2023慕尼黑上海电子展,全方位展示通信、家电、照明领域实力
2023年7月11日-13日,为期三天的2023慕尼黑上海电子展在国家会展(上海)中心圆满落幕。宏明华瓷(原四川华瓷)携贴片电容MLCC、PTC热敏电阻等产品亮相,全方位展示了宏明华瓷在通信、家电、照明、工控、汽车等领域应用的系列产品及解决方案。
原厂动态 发布时间 : 2023-07-30
如何为汽车电动车窗控制开关选择一款汽车级自恢复保险丝实现瞬时过载电流保护?
汽车电动车窗的控制开关接触瞬间会有很大的瞬时峰值电流,约300mA~500mA,持续时间约50ms以内,仅靠电阻无法做到快速响应保护,故设计电路需要再加一级保护,在电源线上串接一颗额定电压30VDC、保持电流Ihold为0.1A,跳闸电流Istrip为0.25A的littelfuse可恢复保险丝microASMD010F,实现瞬时过载电流保护,让控制系统实现高可靠性。
器件选型 发布时间 : 2018-07-17
Eaton Bussmann(伊顿巴斯曼) 过电流保护产品(轴向引线式/径向引线式/表面贴装/PTC自恢复保险丝 & 保险丝座)选型指南
目录- Circuit protection devices introduction Cartridge and axial leaded fuses Fuseholders Radial leaded fuses Surface mount fuses PTC resettable fuses
型号- TDC180,S505SCH,HFA,HVP,HK,S-8000,HFB,HP,C520,PTSLR0805,GMA,HVI,GMC,GMD,PTSLR1210,HGA,PTS1812,C308F,S520,CC12H,SS-5,GMW,TDC600,PC TRON,HTC-2XX,ABC,HHB,1025HC,3828-X,HTC-5X8M,HHI,HHK,C310FH,HHJ,HTC-15M,HHN,SFE,HHT,SR-5H,1AXXXX,3216FF,HTC-60M,SR-5,HTB-XXI,HTB-XXM,SR-5F,CC06H,H15,C310-SC,HRK,S-4000,SS-5FH,1025FA,SS-5F,HJM,MDA,HJL,TDC11,PTR016V,TDC10,MDH,3216LV,6125FF,MDL,PTR060V,MDQ,PTSLR1812,HTC-78M,HKP,PTS0805,0603HV,HTC,CC06FA,HTJ,TCP,HLD,6125TD,PTS1206,GBB,GBA,PTSLR1206,S505H,1025TD,PTR030V,AGA,AHCA,AGC,S505,CB61F,S500,TCP70,C519,S501,C518,C517,HBX-M,C515,BK-PCS,3216TD,HMR,HBX-I,S506,HHF-JFCU,AGW,AGX,S505SC,SS-5H,0603FA,AHC,GLD
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可定制温度范围-230℃~1150℃、精度可达±0.1°C;支持NTC传感器、PTC传感器、数字式温度传感器、热电堆温度传感器的额定量程和输出/外形尺寸/工作温度范围等参数定制。
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可定制烧结NdFeB磁铁的剩磁最高1.45T,易加工成各种尺寸。充磁方向:径向充磁、轴向充磁、辐射充磁等;镀层:Zn、Sn、Ni、电泳等,最高工作温度220℃。
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