解析电感器磁芯的热老化

时间： 2023-10-23 来源：TOPPOWER官网

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近年来，电子行业已记录了铁粉芯热老化现象。这种现象是铁粉材料所特有的。铁氧体和钼坡莫合金 (MPP) 等其他粉末类型都不会受到类似的影响。热老化是指铁粉芯在高温下暴露一段时间后，铁损急剧增加的特性。增加的磁芯损耗会导致性能效率降低，并可能导致自热增加的循环，进而导致损耗进一步增加等。在坏的情况下，如果不加以控制，这种循环可能会导致毁灭性的热失控。

使这个问题变得更加麻烦的是，根据工作温度，触发热老化所需的时间可能长达数百或数千小时，这超出了正常生产线测试的范围。因此，如果未被发现，该问题可能会导致潜在的现场故障问题。

据推测，热老化在铁粉芯中已经存在很长时间了，但当电子产品在65℃或以下的环境中运行时，热老化问题并不严重。但电子产品进入85°C及以上高温环境的激增，以及可能含有铁粉的模制电感器样式的流行，为这一现象带来了新的焦点。

铁粉芯材具有可靠的性能和价值，是多种应用的芯材，如果使用合适的材料，即使在高温环境下也是如此。Coilcraft XAL、XFL、PFL 和 XPL 系列（又名 Ltra）使用此类材料，并且不会出现热老化现象，如下图所示。在暴露于各种时间和高温组合后测量磁芯损耗。图1显示了Coilcraft铁粉芯电感器所用材料的稳定性，在165℃老化20,000小时后磁芯损耗稳定。（高温下两年变化小于5%。）

图 1

Coilcraft 材料在持续暴露于165℃两年后几乎没有变化。

Coilcraft 和其他电感器制造商使用的确切材料的详细信息尚未公开，属于专有信息，因此对热老化的寿命影响进行准确预测是不可行的。也不可能对任何特定应用的适用性做出明确的声明。此处提供的信息基于所描述的测试结果，其目的是了解铁粉芯的热老化现象。

以上是TOPPOWER对于电感器磁芯的热老化的讲解，希望可以帮助你。

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本文由三年不鸣转载自TOPPOWER官网，原文标题为:电感器磁芯的热老化，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

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【经验】谐振功率磁元件在汽车转换器中的应用-Part1

电力电子组件中使用的变压器和电感器主要选择低损耗的铁氧体磁芯和利兹线绕组。减少铜随频率变化发生损耗的必要措施是确保选择最佳的利兹线。本文中PREMO将首先整理利兹线的主要特点，强调选择利兹线时应注意的事项和要点。

设计经验发布时间 : 2023-04-08

最大电流负载可达200A，远见电子提供AECQ-200车规级大电流电感——電動車上貼片式電感的介紹

型号- 7443100115,1890 SERIES,7443551730,SER2817H SERIES,744355147,SHI-13065SD-1R3 HF,SHI-10550DD-R72 HF,VSHI-115100DD-6R8 HF,SER2918,744311330,SHI-10440SD-R62 HF,744314047,SER2915,SHI-215145MZ-8R6 HF,SHI-215145MZ-100 HF,7443551600,SHI-07040DD-1R5 HF,SHI-07030DD-R48 HF,SHI-10040DD-1R0 HF,SHI-225120MZ-680 HF,VSHI-05540FS-2R2 HF,744355019,SHI-13065FS-150 HF,SHI-13050SD-R47 HF,SHI-270178MZ SERIES,SHI-13065SD-R82 HF,744355256,7443631500,7443551280,744311100,SHI-10040DD-1R0HF,744311220,VSHI-05540FS-4R7 HF,744310013,SHI-13050FS-9R2 HF,744314850,SER2011 SERIES,SER2013 SERIES,SHI-19286MZ SERIES,VSHI-115100DD-2R2 HF,SHI-225120MZ-100 HF,744325180,SHI-07030DD-R13 HF,74435564700,SHI-07050DD-8R5 HF,SHI-13050FS-120 HF,2013 SERIES,SHI-13065SD-2R0 HF,VSHI-115100DD-4R7 HF,7443630860,744355047,VSHI-05540FS-R47 HF,SHI-07040DD-2R2 HF,SHI-13065FS-9R2 HF,SHI-225120MZ-220 HF,SHI-215145MZ-330 HF,7443556082,VSHI-115100DD-1R5 HF,7443552280,744310024,744311470,SHI-07050DD-7R6 HF,SHI-13065FS-110 HF,744325072,744323100,1050 SERIES,SHI-225120MZ-330 HF,7443630070,SHI-13035DD-2R2 HF,SHI-07050DD-1R1 HF,744323220,SHI-270154MZ-XXXH,SHI-07030DD-R95 HF,SHI-215145MZ-220 HF,74435580680,SHI-10550DD-4R2 HF,7443552150,SHI-10440SD-R15 HF,SHI-270154MZ-XXXL,SHI-07050DD-4R9 HF,SHI-10440SD-2R8 HF,VSHI-115100DD-150 HF,7443556190,SHI-192140MZ,744314076,7050 SERIES,SHI-10630FS-2R2 HF,SHI-07040DD-1R0 HF,7443552100,7443551131,SHI-10630FS-1R0 HF,7443551130,VSHI-05540FS-R32 HF,SHI-07030DD-1R6 HF,744325650,SHI-07030DD-R30 HF,SHI-18390DD-R82 HF,7443551370,VSHI-05540FS-3R6 HF,7443556260,744355182,744314760,7443551920,SHI-13050SD-4R8 HF,SHI-13050SD-R19 HF,7443100200,SHI-270142MZ-XXXH,SHI-10550DD-7R8 HF,1040 SERIES,SHI-10550DD-6R5 HF,VSHI-115115DD-330 HF,744325780,SHI-270142MZ-XXXL,744323120,744325420,VSHI-05540FS-5R6 HF,74435584700,7443556130,SHI-192107MZ SERIES,SHI-225120MZ-8R2 HF,SHI-18390MZ-150 HF,SHI-192107MZ,744310055,744311022,SHI-07030DD-R24 HF,VSHI-115100DD-5R6 HF,SHI-07050DD-R47 HF,744314650,SHI-18390MZ-330 HF,VSHI-05540FS-1R3 HF,SHI-18390MZ-470 HF,7443550820,VSHI-115100DD-8R2 HF,SHI-18390DD-6R8 HF,7443551151,744325550,IHLP-4040DZ,SHI-07050DD-R76 HF,7443630420,74435581200,VTHI-480279 系列,SHI-18390MZ-220 HF,SHI-19294MZ,SHI-07030DD-2R0 HF,SHI-13065SD-4R7 HF,744313330,744311150,SHI-13035DD-3R3 HF,SHI-215145MZ-4R2 HF,SER2814H SERIES,SHI-225120MZ-470 HF,SHI-07050DD-100 HF,SHI-225120MZ-6R8 HF,744323020,74435561500,7443630310,SHI-215145MZ-7R0 HF,7443630550,SER2915L SERIES,SHI-18390DD-3R5 HF,SHI-19294MZ SERIES,SHI-13065SD-6R0 HF,744311047,SHI-10550DD-5R5 HF,744313220,SHM92140MZ SERIES,SHI-18390DD-2R6 HF,7443550600,THI-269220MZ,SHI-215145MZ-2R2 HF,7443550480,VSHI-115100DD-R22 HF,744325330,VSHI-115100DD-R68 HF,744323033,VSHI-115100DD-R45 HF,SHI-13035DD-1R2 HF,VSHI-05540FS-R68 HF,SHI-07050DD-3R3 HF,744314200,SHI-10550DD-100 HF,SHI-10550DD-1R2 HF,SHI-192140MZ SERIES,SHI-10550DD-R40 HF,744323150,SHI-10630FS-R56 HF,7443550230,1350 SERIES,VSHI-115100DD 系列,7443551200,74435586800,SHI-215145MZ-5R5 HF,7443556450,74435582200,SHI-10550DD-1R8 HF,VSHI-05540HS 系列,VSHI-115100DD-100 HF,SHI-270154MZ SERIES,SHI-07040DD-3R3 HF,744311068,SHI-13035DD-1R8 HF,744310095,744355090,7040 SERIES,744314330,SHI-18390DD-4R5 HF,SHI-192120MZ,744313120,SHI-192130MZ SERIES,SHI-10550DD-3R2 HF,744323056,SHI-225120MZ-820 HF,7443550140,SHI-13065FS-130 HF,7443551470,74435583300,7443552560,7443552200,7443551111,SHI-10550DD-R16 HF,7443634700,7443630220,74435581000,SHI-07050DD-R24 HF,744314101,74435580820,SHI-215145MZ-1R4 HF,SHI-10630FS-1R6 HF,7443251600,SHI-192120MZ SERIES,SHI-07040DD-R68 HF,SHI-13065SD-2R8 HF,SHI-225120MZ-120 HF,7443552430,744323068,SHI-13065FS-7R4 HF,744325120,SHI-07040DD-R40 HF,VSHI-115100DD-3R3 HF,SHI-270178MZ,SHI-10440SD-2R0 HF,7443556350,74435588200,SHI-270170MZ,SHI-10630FS-R68 HF,SER2010 SERIES,SHI-18390DD-1R3 HF,2212 SERIES,744313025,SHI-13035DD-R68 HF,744314110,SHI-13050SD-R90 HF,WE-HCI,SHI-07050DD-2R0 HF,SER2014 SERIES,VER2923,744325240,SHI-115100DD SERIES,744325016,7443550320,VSHI-05540FS-1R0 HF,SHI-270142MZ SERIES,SHI-10440SD-1R5 HF,SHI-10440SD-4R3 HF,VSHI-115100DD-1R0 HF,SHI-10440SD-R34 HF,SHI-10550DD-2R4 HF,1365 SERIES,SHI-07040DD-4R7 HF,SHI-192130MZ,SER2918H SERIES,SHI-07050DD-6R5 HF,SHI-215145MZ-3R1 HF,SHI-10550DD-160 HF,74435563300,7443251000,744355215,SHI-215145MZ-R70 HF,744314490,SHI-10440SD-1R0 HF,7443100150,SHI-18390DD-1R9 HF,SHI-13050SD-6R0 HF,SHI-10630FS-R35 HF,SHI-13065SD-R20 HF,SHI-10440SD-5R6 HF,SHI-13065SD-3R7HF,SER2814L SERIES,74435562200,SHI-10630FS-1R2 HF,7443630140,7443550101,7443556560,7443556680,744355122,7443632200,SHI-07040DD-R22 HF,SER2817,XAL1010,744314024,SER2814,SHI-10630FS,SHI-215145MZ-150 HF,SER2013,SHI-13050SD-1R4 HF,SER2014,SER2011,SER2012,SER2009 SERIES,SER2915H SERIES,SER2010,1335 SERIES,SHI-13035DD-R25 HF,SHI-13050SD-3R2 HF,IHLP-5050FD,SHI-19286MZ,744314150,SHI-13050SD-2R3 HF,744355230,7443631000,7443633300,744313180,SHI-13050DD-1R1 HF,1030 SERIES,7030 SERIES,744313068,SHI-270170MZ SERIES,7443630700,SER2012 SERIES,SHI-13065SD-R47 HF,744325040,SER2009,S

商品及供应商介绍 - PEC-COIL PDF 中文下载

东莞铭普光磁股份有限公司电子事业部简介

型号- MSCB2712DG4R5U,MHC1264SG4R7M,MHA0530NSGR68M,MHA0725SGR15M,MHA0730NSG2R2M,RF系列,RFT-002DG,MHA0730NSG1R5M,10XX,RFC,TPEIR25-0179SG,MHA0530NSG1R5M,EP-834SG,07XX,TPEIR31-0198SG,MHA0420NSGR47M,CM3216A-600,04XX,MHW3114SG7R0K,MHA1770NSG2R2M,2520,MHA0730SGR15MA,MHA1260NSGR56M,RFS,RFT,RFT-072SG,MHB1110SGR40K,TPEIR20-0177SG,2016,3225,MHW2011SG7R0J,CL4532A-201,CC2012A-801,EP-919SG,MHW1910SG2R0M

商品及供应商介绍 - 铭普光磁 - 2021V2 - 2021年06月1日 PDF 中文下载

公司简介 (Company Profile)

商品及供应商介绍 - PH - 2023.05 PDF 中英文下载

磁芯的奥秘与应用

磁芯，对于大多数人而言，可能是一个不太熟悉的名词。但在现代电子技术中，它起到了不可或缺的作用。本文电源滤波器维爱普小编将深入探讨磁芯的基础知识、工作原理以及它在各个领域中的应用。

技术探讨发布时间 : 2024-03-05

深圳市维爱普电子有限公司企业简介

商品及供应商介绍 - 维爱普 - 2023/12/21 PDF 中文下载

【产品】表面贴装型大电流电感器VSHI-106030FS，磁芯损耗低、效率高，通过AEC-Q200认证

远见电子VSHI-106030FS系列大电流电感器，支持表面贴装型器件，具有磁芯损耗低、效率高特性；采用闭合磁路，具有低漏磁特性；符合RoHS和REACH标准，通过AEC-Q200认证标准，适用于汽车、VGA卡等应用领域。

产品发布时间 : 2023-01-31

【产品】温升电流最高26A的大电流电感器SHI-106030FS系列，闭合磁路，符合RoHS和REACH标准

远见电子推出的SHI-106030FS系列大电流电感器支持表面贴装，磁芯损耗低、效率高，采用闭合磁路、具有低漏磁特性；该器件符合RoHS和REACH标准，可应用于汽车和电源调节系统中的DC/DC转换器等。

产品发布时间 : 2023-02-28

electronic components short form catalog

型号- HCV1707,WCLA2012V1,FPT1006,FP1109,FP1108,WCLA1005V1,MPIA40-V2,FP0505R,UP2B,CTX-52M,WCLA1608V1,SD14,SD12,SD10,WCL2520,HCM1A0703,FP1105,SD18,SDQ,FP0805,FP0807,UP1B,DR1050,HCM1A1104,CTX01-18738-R,HCM1305,HCM1307,POE13,CMS3,CMS2,DRAQ75,CMS1,RL,HCMA0703,FP1206,FP1208,DRQ74,HC2LP,UP4B,POE26,SD,HCM1A1305V2,MCLA2012V1,HCMA1707,MCL2012V2,ACE1V,MCL2012V1,MCLA1608V1,FP0906,CTX01-18754-R,SD20,CL,DRA73,UP3B,MCLA1608V2,SD25,DRA74,HCM1A,MPI40-V2,FP1008L,DRQ73,CTX_1X,MCLA3216V1,SD53,CL1108,CPL2,DR,CTX__-3,CTX__-2,CTX__-4,HCM0703,CTX__-1,HCF1007,HC1,HC3,UP,HC8,CTX17-18913-R,HC7,HCM1A4020V2,HC9,FP3,FP2,FP4,CTX__-1P,HCM,MCL1608V1,FP0507V,MCL1608V2,VP1,VP3,CPLE,VP2,VP,VP5,VP4,CLA1108,HCM1103,HCM1A1307,CPLA,HCM1A1305,HCM1104,FP1107R,POE4,HCV1206,FP,DR1040,CTX__-2P,CTX-52LP,FP1108B,FP0910V,SDQ25,HCMA1104,POE7,HCM1A0805,HCX,CTX__-3P,UP2.8B,MCLA1005V2,CL0608,FP1109B,DR1030,FPX,SDQ12,HC8LP,DRAQ127,CTX__-4A,HC,UP5,HCM1A0703V2,MCL1005,WCL,DR124,FP1505,DR125,ACE1V3225,MPI,CTX__-4P,ACE1V2012,CLB1108,VPH1,FP1012V,DR127,VPH2,VPH3,VPH4,VPH5,SD6030,HCM0503,HCP0704,MPIA25-V2,DRAP127,HCM1AV2,UP2UC,DRAP124,DRAP125,FP1308R,DRAP,DRAQ,CTX17-18765-R,FP0404,SD8328,CMS,CL0904,FP1309B,SD6020,FP1108L4,FP1108L3,FP1108L2,HCM1707,MPI25-V2,WCL3225,FP1108L1,CTX-52,CL1110-R,ACE1V4532,DRA127,CL1208,DRA125,FP1010R,DRA124,FP1010V,HCMA1305,MPI20-V1,HCP0605,DRQ127,DRQ125,WCLA,RL1218,DRA,FPT705,HCM1A1105V2,MCL,LD,FPV1006,CPL,HCM1A1707V2,DRQ,HCM1A0805V2,FP1007R6,RL1011,FP1110V2,FP1110V1,LCPI,CTX01-19603-R,HCM1A0503,UP0.4C,SD3114,SD3118,MCLA,HCMA0503,HCM1A1104V2,CLH1110R1,HCM1A2213V2,LD1,HCM1A1707,LD2,FPV1507,SD7030,FP1507R,FP1007,FP1008R6,FP1008R5,DR73,FP1008R7,DR74,HCP0805,HCF1305,HCM1A1307V2,SD8350,HCM1A0503V2,FP1006,MPIA,FP1005,FP2207,FP0705,FP0708,FP0707,HCMA

选型指南 - EATON ELECTRIC - February 2020 PDF 英文下载

API catalog

型号- 5022,4211,8532,SPD62R,4212,LP5064R,2150,0920,SPD74,SPD73,511,1210,1331,4445,0925,4448,4726,3090,4221,0819,4222,MIL1331,PTHF,DC1050,6655-6658,3094,PT 1,P1330,FTA,MIL1330,MILP1812,4214,4590,M0820,4470,4232,SP1812,LP5050R,DC780,3483R,0603R,1537-7XX,MIL8532,4501,SDS850R,1638,2727,SP1008,SPD125,PTHF-SM,SPD127,DC1390,PTKM 115,LP5035R,1008,S0402,HTPT66,6012 - 6027,1641,9405,S1210,P160,SPD42R,LP4040R,6494 - 6498,2474,7085,MILS1812,2502,S1008,6665-6668,2500,M1330,M1331,1539,4922,1537,1812,EMI,P1812,S0603 101 N J 1 C,160,HF1008,MIL4922,ER,MIL1812,PTKM-SM,0402R,1027,2512,1026,PDXXXR,1025,2510,1782,3443,5500,HCT,4379,1945,1944,6443 - 6448,6051 - 6055,LLST,S0402 8N2 G 2 S,5400,2892,2890,MIL2510,S3483R,FFAM,FFAT,4302,4426,4307,SDS680R,4564,1330,DC630,2020,7273,PTKM-VM,S4924,100,PA,1325,1842,2534,S1812,103,1840,S0603,3500,105,2256,106,4554,108,HC,5526,SP1210

选型指南 - DELEVAN - 2019/05/22 PDF 英文下载