楼氏电容推出的增强型MLCC系列电容是汽车电子应用的理想之选,具备高性能和安规认证
近年来,随着各国政府不断推出各项举措以推动燃油经济性层面的改善,各大汽车厂商也开始积极寻求新的市场机会。在全球范围内,针对电动汽车(EV)的需求正呈爆炸式增长,也越来越为主流市场所接受。
随着电动汽车产量的增加,新的难题也出现了,如应用中的电磁干扰(EMI)问题。电动汽车采用高功率电子器件来操作电动引擎,产生大量低频电磁干扰。干扰是电子应用中的一个常见问题,但在电动车的应用中,由于安全、效率和性能都依赖于电子装置,因此严重的EMI可能会导致诸多隐患。
图1:虽然混合动力汽车(HEV)率先问世,但纯电动车(EV)以锐不可当之势迅速流行起来。
从电动汽车的构造来看,EMI主要有以下来源(图2):
功率转换器是电力驱动系统内EMI的主要来源。该系统需要用到高速开关器件,如传统的绝缘栅双极型晶体管(IGBT),在2-20kHz的频率下工作。快速IGBT和碳化硅(SiC)金属氧化物半导体场效应晶体管(MOSFET)可在更高频率下工作。
电动机在高功率水平下工作,造成电磁辐射(EME),并通过阻抗为EMI提供路径,阻抗随频率而变化。
牵引电池和互连器件中的电流成为电场和磁场(EMF)的排放源,为EMI创造了路径。
屏蔽和非屏蔽的电缆在电动汽车的子系统之间承载高水平的电流,导致更强的磁场。由于布线空间有限,高压和低压电缆被安置在邻近位置,造成它们之间的EMI。
电池充电器和无线充电设施是主要的外部电磁干扰源。连接到无线充电器会产生一个强磁场,将电力传输到电动汽车上。
图2:电动汽车中的EMI来源
宽带隙半导体怎么样?
宽带隙(WBG)半导体,如SiC和氮化镓(GaN),具备高功率和高效率,但随着开关频率的增加,会产生EMI影响。基于SiC的器件可容纳较小的无源EMI滤波器,但EMI往往集中在高频范围内。无源元件在高频下的非理想性能表现对滤波器的设计带来了挑战。必要时,调整滤波器方案以减少电感/电容值和滤波器尺寸是减少EPC和等效串联电感(ESL)的另一种手段。值得注意的是在设计中还有许多其他方法来顺应这一趋势。
电动汽车中的EMI电容器
在电动汽车应用中,滤波电容器,也被称为EMI滤波器,通常用作输入和输出电容器。它们的作用是消除线路上的噪声和其他不需要的信号。在系统的高压交流电(AC)侧,电容器通常提供EMI滤波,而在子系统的直流电(DC)侧,它们的作用是平滑交流电的纹波并滤除噪声。
EMI滤波器有多种类型,可根据具体应用需求来加以选择。例如,针对高可靠性的应用,您可能需要用到安规认证的X级和Y级电容器。X级(线对线)电容器被设计成短路失效,因此当过压情况发生时,EMI滤波器的失效会促使过流保护装置(OCPD)打开,防止发生电击危险。Y级电容器(线对地)也被设计为在失去地线连接的情况下失效打开。失效可能产生噪声,但不会造成致命风险。
高压电动车子系统的可靠性和安全性需要接受高度审查,X级和Y级多层陶瓷电容器(MLCC)符合UL、TÜV、CSA、VDE和其他国际安全规范,是应用的理想选择。X类和Y类电容器常见的是陶瓷介质或塑料薄膜RFI/EMI抑制电容器,但由于一些电动车子系统有高温和小尺寸的要求,MLCC是更为理想之选,在恶劣的操作条件下不会融化。
楼氏电容(KPD)新近开发制造的增强型MLCC系列,具备高性能和安规认证,是汽车电子应用的理想之选。系列产品为表贴式,符合国际UL60384-14和EN60384-14规范,可在AC-DC电源应用中代替引脚类薄膜电容。系列产品还符合IEC-60384-14标准规定的Y2/X1、X1和X2等级要求;在这些子等级中,楼氏电容现可提供四个独立的MLCC产品系列。
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本文由ll转载自Knowles 微信公众号,原文标题为:楼氏洞察|克服汽车电子应用中的电磁干扰(EMI)问题,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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目录- General and Technical Introduction SM EMI Filters Panel Mount EMI Filters Discoidals, Planar Arrays and Special Filters
型号- SFAJL5000471MX,SFBDC5000220ZC,SFSUC5000150ZC0,SFBDT5000102MX,SFCMC5000333MX,SFBCC5000102MX,SFJGL5000224MX,SBSGC5000102MX,SFCDC5000681MX,SFBLL5000333MX,SFABL5000102MX,SFKKC5000330ZC,SFBML5000100ZC,SFAKT1000104MX,SFBML5000151MC,SFJNL2K00331MC,SFBCL5000681MX,SFCML5000221MC,SFJGL2K00471MC,SFKKT5000103MX,SFJNL2K00682MX,SFJGL1K00223MX,SFSUC5000680MC0,SFABC2000683MX,SFJGL1K00683MX,SFAKT5000681MX,SFBMC5000102MX0,SFABC5000103MX,SFBCL1000104MX,SFLMC1000104MX,SFBCP5000442ZX,SFBDT5000333MX,SFJNL2K00222MX,SFJGC2000105MX,SFJGP5000944MX,SFAJC5000472MX,SFBCP5000200ZC,SFAAC,SFCMC5000104MX,SFSUC5000683MX0,SFBDL5000470ZC,SFBCC5000333MX,SFKKC5000152MX,SFKKT5000101MC,SFCML5000683MX,SBSGC5000333MX,SFBDP5001N36MX,SFBDP5000443MX,SFBDC5000100ZC,SFBMP5000302MX,SFBDT5000331MC,SFTMC5000470ZC,SFABL5000333MX,SFBDT5000222MX,SFCDL5000471MX,SFBDC5000151MC,SFBDP5000201MC,SBSGC5000222MX,SBSMP5000152MX,SFAJC5000221MC,SFJNL2K00102MC,SFKKT5000332MX,SFKBL5000470ZC,SFKKL5000220ZC,SFLMP0500304MX0,SFAJC1000104MX,SFBCL5000101MC,SFBLL5000331MC,SFJGC5000334MX,SFCDL,SFCDC5000101MC,SFABL5000682MX,SFAJL5000153MX,SFBDP5000663MX,SFJGC3K00151MC,SFCDP,SFCMC5000222MX,SFJGC2K00472MX,SFKKT5000223MX,SFBML5000153MX,SFBCC5000150ZC,SFJNC2K00103MX,SFBCC5000682MX,SFBLL5000222MX,SFCDC,SBSMC5000472MX,SFABL5000150ZC,SFBDT2000473MX,SFBMT2000683MX,SFBMC5000472MX,SFCDC5000332MX,SFLMT5000100ZC,SFBCL5000332MX,SFLMC5000101MC,SFCDL1000474MX,SFJNL1000155MX,SFTMC5000333MX,SFLML5000680MC,SFAAC5000100ZC,SFCDC5000683MX,SFBCC2000473MX,SFKKL5000100ZC,SFABL5000680MC,SFLML5000153MX,SFKKT5000681MX,SFKKL5000151MC,SFABC5000101MC,SFAAC5000151MC,SFKKT5000221MC,SFBCC5000680MC,SFABL2000473MX,SFJNC0500335MX,SFTMC5000150ZC,SFSUC5000223MX0,SFCDP5000942MX,SFAKL2000683MX,SFCDL5000153MX,SFUMC5000220ZC,SFABC5000332MX,SFAKL5000332MX,1206Y1000103MXTE07,SFLML2000473MX,SFLMT5000151MC,SFLMC5000221MC,SFBLC5000332MX,SFBLC2000683MX,SFDPP0500944MX0,SFSRC5000220ZC0,SFAAC5000471MX,SFCMC5000102MX,SFLMP5000942MX,SFBDP5000301MC,SFCMC2000224MX,SFBCL2000683MX,SFCML5000681MX,SFAJC5000681MX,SFAJL5000100ZC,SFBLL5000102MX,SFCML5000472MX,SFKKT1000104MX,SBSPP1000682MX,SFBCL5000221MC,SFBDT5000150ZC,SBSGC5000682MX,SFAJL5000151MC,SFCDC5000221MC,SFBCP5000202ZX,SFLMC5000223MX,SFBML5000220ZC,SFABC5000223MX,SFJGP1K0136NMX,SFBDP5000203MX,SFKKT2000683MX,SFAKC5000470ZC,SFLMC5000332MX,SFCMC5000150ZC,SFKBL5000682MX,SFAAC5000153MX,SBSMC1000224MX,SFBDC5000153MX,SFJNC2K00332MX,SFLMT5000220ZC,SFAKT5000472MX,SFBLL5000150ZC,SFJGL5000104MX,SFLML5000471MX,SFSTC5000101MC0,SFJGC2K00103MX,SFAJL5000331MC,SFTMC,E01,SFBCP1000443ZX,E03,SFAKC5000152MX,SFAAC2000473MX,SFCDL5000102MX,E07,SBSGP5000222MX,SFBMC5000681MX,SFBMT5000220ZC,SFUMC0500154MX,SFJGL2K00331MC,SFUMC5000680MC,SFAJL5000682MX,SFKBL5000222MX,SBSGP0500224MXB,SFAJL5000222MX,SFBMP2000943MX0,SFKBC5000103MX,SFAJC2000683MX,SFJGP2K00302MX,SFKBL5000331MC,SFCDC5000154MX,SFKKC5000470ZC,SFBCC5000471MX,SBSMP5000472MX,SFJGL2K00682MX,SFBLC5000220ZC,SFABL5000471MX,SFKBC5000223MX,SFCMC5000473MX,SBSMC5000683MX,SBSMC5000223MX,SFJNC2000105MX,SFLML5000220ZC,SFJGL2K00222MX,SFAKL5000220ZC,SFTMC5000330ZC,SFBMP5000442MX,SFCML0500684MX,SFLMT2000683MX,SFBLC5000151MC,SFKBL5000102MX,SBSPP1000222MX,SFSUC1000334MX0,SFTMC2000473MX,SFCMC,SFAKT5000152MX,SFBML0500154MX,SBSGC5000473MX,SFCDL5000222MX,SFCML,SFBML5000471MX,SFAAC5000220ZC,SFAJC5000330ZC,SBSGP5000102MX,SFBLL5000680MC,SFJNL5000154MX,SBSMC5000332MX,SFUMC5000101MC0,SFLML5000151MC,SFCMC5000680MC,SFBMC1000104MX,SFJGL0500335MX1,SFBLC5000681MX,SFAKT2000683MX,SFLMC5000103MX,SFKBL2000473MX,SFBMT1000104MX,SFCDL5000331MC,SFBCC5000102MX0,SFBDT5000470ZC,SFAKL5000100ZC,SFJGP2K00942MX,SFLMC2000683MX,SFLML5000100ZC,SFLMT5000103MX,SFBLP0500943ZX,SFJGC2K00332MX,SFAKL5000151MC,SFAKL5000681MX,SFBLC5000100ZC,SFBMP5000662MX,SFCML5000103MX,SFKBL5000333MX,SFBMP5000940ZC,SFUMC5000151MC,SBSGC5000153MX,SFSTC5000472MX0,SFBMC5000330ZC,SFSTC5000102MX0,SFAJL0500154MX,SFKBL5000150ZC,SFKBC5000221MC,SBSPP1000102MX,SFBCL5000472MX,SFCMC5000331MC,SFBDT5000102MX0,SFUMC5000100ZC,SFCDL5000680MC,SFJGC0500335MX,SFAKL5000472MX,SFKBC5000101MC,SFBMT5000153MX,SFSUC5000332MX0,SFABL,SFBLC5000472MX,SFCDC5000472MX,SFBCP5000941ZX,SFBDL5000330ZC,SFBCL5000152MX,SFCDC5000152MX,SFABC,SFCDP5000302MX,SFAKL1000104MX1,SFJGC2K00681MC,SFBMT5000100ZC,SBSMC2000154MX,SBSMP2000104MX,SBSGP0500224MX,SFJNL1K00153MX,SFSRC0500473ZX0,SFAJL2000683MX1,SFBLC5000153MX,SFJGP2000205MX,SFBDP5000661MC,SFAKL5000153MX,SFJGL2K00102MC,SFKKL2000683MX,SFCDL5000682MX,SFBMP50013N6MX,SFBMT5000151MC,SFCML5000332MX,SFCDL5000473MX,SFKBC5000332MX,SFBDL5000152MX,SFBLP2000203ZX,SBSMC5000103MX,SFBMP5000202MX,SFAKT5000330ZC,SFBLL0500154MX,SFJNC3000684MX,SFJGL1000225MX,SFBDC2000683MX,SFUMC5000471MX,SFCML5000101MC,SFSUC5000220ZC0,SFBML5000680MC,SFAJL5000680MC,SFBLL5000682MX,SFBMC5000152MX,SFAKC5000330ZC,SFCML5000223MX,SFSTC2000473MX0,SFBDP5000441MC,SFJGC1K00333MX,SFAJC5000152MX,SFUMC5000153MX,SFCMC5000682MX,SFJGP1K00943MX,SFBDC5000331MC,SFBDT5000330ZC,SFLMT2000473MX,SFBDC5000222MX,SFBDP5000941MX,SFCDP5000661MC,SFBCC5000151MC,SFCDP5000201MC,SFBCC5000100ZC,S
宇阳(EYANG)MLCC片式多层陶瓷电容器选型指南
目录- 工业级P/B系列 工业级中高压系列 通用型系列 通用中高压系列 低损耗系列 大功率低损耗系列 车载系列 车载低损耗系列
型号- P0805C0G9R1D251N#E,B0105X5R331K6R3N#Z,B0105X7R560K160N#Z,P0805C0G620G251N#E,B0201C0G3R0A250N#A,B0201X7R181M500N#A,P0805X8G1R2A501N#E,B0402C0G221K500N#B,P0805X8G4R7A251N#E,B0603C0G182G250N#D,B0805X5R153M101N#H,B0105C0G151J250N#Z,B0201X7R271J160N#A,B0805X5R223K101N#Y,B0402X7R102M250N#B,P0201C0G4R0B201N#A,B0402X7R121M500N#B,P0805C0G5R1B251N#E,P0805C0G150G251N#E,P0201X8G5R6B201N#A,B1206X5R822M101N#O,B0805X5R153M101N#Y,P0603X8G120J251N#U,P0201C0G2R0A201N#A,B0402C0GR68B250N#B,B0402C0G8R0A500N#B,P0603C0G8R2D251N#U,P0201X8G3R6A201N#A,B0805X5R103J631N#H,B0105C0G0R9B160N#Z,B0201X7R102M160N#A,B0805X5R472M631N#H,P0603C0G6R2C251N#U,B0402C0G4R7A250N#B,B0402X5R102K101N#B,B0603X5R106K100N#K,B0603C0G122G160N#D,B0201X5R183J100N#A,B0201C0G7R0C250N#A,P0603C0G2R2A251N#U,B0201X7R471K160N#A,P0805X8G3R0A251N#E,P0402C0G330F201N#B,P0805X8G5R0B251N#E,B0603X5R152J101N#D,B0603X5R561J201N#D,B0201C0G5R0B250N#A,B1206X5R222J101N#O,B0402C0G2R0C500N#B,B0105C0G8R0C160N#Z,B0105X5R331M100N#Z,P0805X8G7R0C251N#E,B0201X7R562J250N#A,B0402X5R474M250N#B,P0805C0G6R8B251N#E,B0603X5R822K101N#D,B0105X5R391M100N#Z,B0201X7R221K250N#A,B0105X5R272J100N#Z,B0105X5R472K100N#Z,B0105C0G0R4A250N#Z,B0105X7R121J160N#Z,B0402X5R474M250N#N,B0105C0G2R4B250N#Z,B0105X5R103M100N#Z,B0402X5R563K500N#C,B0805X5R223K101N#H,P0402C0G2R0A201N#B,B0105C0G200G160N#Z,B0402X5R334K100N#N,P0402C0G4R0B201N#B,B0402X7R181M500N#B,B0805X5R392M101N#Y,B0402C0G1R5A250N#B,B0402X5R334K100N#B,P0402C0G0R5A201N#B,B0805X5R431J501N#Y,P0603C0G3R0C251N#U,B0105C0G0R9B250N#Z,B0201X7R121M500N#A,P0402X8G0R4A201N#B,B0105C0G4R0A160N#Z,B0402C0G1R2A500N#B,B0201X7R102M250N#A,B0402X5R271M101N#B,B0603X5R511K201N#D,B0402C0G100G250N#B,P0603C0G1R0B251N#U,B1206X5R473J501N#L,B0805X5R392M101N#H,B0201C0GR68B250N#A,B0402C0G7R5D250N#B,P0402X8G2R4B201N#B,B0201C0G8R0A500N#A,B0201X5R183M160N#A,B0402C0G680F250N#B,B0603X5R911M201N#D,B0201C0G1R6C500N#A,B1206C0G333J250N#L,B0805X5R391J631N#Y,B0201C0G8R2B250N#A,B0603X5R222M101N#D,B0201X7R471K250N#A,B0105C0G151J160N#Z,B1206X5R471K101N#O,P0805X8G2R0C501N#E,B0402C0G7R0C250N#B,B0603X5R821J251N#D,P0201X8G6R8A201N#A,P0201X8G0R4A201N#A,B0201C0G100G250N#A,B0603X5R476M4R0N#K,B0402X5R152J101N#B,P0805X8G7R5D251N#E,B0402C0G3R0A250N#B,B0402C0G241J250N#B,P0402C0G2R2A251N#B,B0603X5R271K251N#D,B0805X5R272K101N#Y,B0805X5R683M101N#H,B0805X5R104M101N#Y,B0201X7R222J160N#A,B0402C0G471K500N#B,B1206X5R106K250N#L,B0402C0G182G250N#B,B0105X5R152M100N#Z,B0805X5R102K201N#Y,B0105X5R153J6R3N#Z,B0603C0G182G160N#D,B0201C0G1R5A250N#A,B0805X5R272K101N#H,P0402C0G6R2C251N#B,B0201C0G270K500N#A,P0603X8G0R6A251N#U,B1206X5R102M101N#O,P0402X8G3R6A201N#B,B0105X5R201M6R3N#Z,B0805X5R683M101N#Y,B1206X5R272K102N#O,B0201C0G241J250N#A,B0805X5R161K501N#Y,B0805X5R473K101N#H,B0805X5R222J251N#Y,B0402X7R273K500N#B,B0402C0G0R3B250N#B,B0201C0G4R7A250N#A,B0105C0G330J250N#Z,B0105X5R272M6R3N#Z,B0805X5R473K101N#Y,B0402X7R472J6R3N#B,B0201X5R333J6R3N#A,B0603X5R271M101N#D,B0105C0G101K250N#Z,B0805X5R561M501N#Y,P系列,B0105C0G0R4A160N#Z,P0603C0G2R7B251N#U,P0402C0G0R6B251N#B,B0105C0G1R2C160N#Z,B0105X5R103K6R3N#Z,B0201X7R331J500N#A,B0402C0G620F250N#B,B0402X5R222M101N#B,B0201X7R681M250N#A,B0603C0G152G500N#D,P0805C0G680G251N#E,B0603X5R102K101N#D,B0805X5R181M631N#Y,B0105X5R201J100N#Z,P0805X8GR68B251N#E,P0402X8G6R8A201N#B,B0805X5R331J631N#Y,P0402C0G3R0C251N#B,P0805X8G8R0A501N#E,B0603C0G222J500N#D,B0805X5R475K250N#H,B0201C0G471K500N#A,B0402X5R474M6R3N#B,B0603X5R331J101N#D,P0805X8G0R3B251N#E,B0201C0G6R8D500N#A,P0805X8G200J501N#E,B0805X5R681J501N#Y,B0105C0G1R3B160N#Z,B0402X5R102J500N#B,B0402C0G152G500N#B,B1210X5R226M160N#L,B0805X5R475K250N#Y,B0105X5R392J6R3N#Z,P0603X8G0R5B251N#U,B0105C0G200G250N#Z,P0402C0G4R7C251N#B,P0805C0G470J251N#E,B1210X5R226M160N#R,B0805X5R392K251N#Y,P0603C0G1R5C251N#U,B1210X5R226M160N#Q,B0402C0G240K250N#B,B0805C0G822G500N#K,P0201C0G1R3C201N#A,B0402X5R224M250N#B,B0201C0G680F250N#A,B0402C0G8R2B250N#B,B0402C0G620K250N#B,P0805X8G9R1C251N#E,P0402C0G2R7B251N#B,P0402X8G5R1A201N#B,B0402X7R272K100N#B,B0402X5R393J250N#B,P0805C0G100C251N#E,B0201C0G0R8A500N#A,P0402C0G2R4C201N#B,P0402X8G330J201N#B,B0402C0G180F500N#B,P0805C0G2R7A251N#E,P0201X8G4R0A201N#A,B0402X5R224M250N#N,B0402X5R201K500N#B,P0805C0G4R7B251N#E,P0402X8G0R9B201N#B,B0201C0G150F250N#A,B0201C0G820G250N#A,B0805X5R121M631N#Y,B0402X5R474M160N#B,B0603X7R474K500N#D,B0105X7R181J160N#Z,B0201C0G220G500N#A,B0402C0G680K250N#B,B0805X5R104M101N#H,B0201C0G620F250N#A,P0805C0G5R6C251N#E,B1206X5R152M631N#O,P0603C0G0R6B251N#U,B0201X7R151M160N#A,B0105C0G3R6A160N#Z,B0105C0G101K160N#Z,B0402C0G200J500N#B,B1206X5R226M160N#L,B1206X5R472J101N#O,B0105X5R152K6R3N#Z,B0805X5R751M501N#Y,B1206X5R221K101N#O,B0402X7R222J250N#B,B0105C0G3R6A250N#Z,B0201C0G301J500N#A,B0805X5R911J101N#Y,B0402C0G6R2A250N#B,B0402C0G270K500N#B,B0402C0G222J500N#B,B0402X5R474M160N#N,B0201C0G470G500N#A,B0105C0G5R6B160N#Z,B0201X7R751K160N#A,P0402C0G3R9A251N#B,B0105X7R820K100N#Z,P0805C0G101G251N#E,P0603C0G7R5A251N#U,P0603X8G330G251N#U,P0201X8G0R3B201N#A,B0201C0G270F500N#A,B0201X7R562J160N#A,B0805X5R101K501N#Y,P0201C0G0R4B201N#A,B0201C0G1R1B500N#A
【经验】解析SLC和MLCC这两种电容器的应用
在电路设计初期,工程师们就需要决定是选用单层电容器(SLC)还是多层陶瓷电容器(MLCC)来满足应用需求。今天Knowles(楼氏)和你分享如下:总的来说,两者似乎有类似的功用,因为无论是SLC还是MLCC,它们都可作电路中的充储电、滤波或旁路之用。
设计经验 发布时间 : 2022-05-10
Solutions for Automotive Electronics
型号- MHB,MHL,HXJ SERIES,KVF101L225M55BRT00,MHS,KVD250L156M55A0T00,EKYC250E□□392MK30S,KVJ500L106M55BRT00,MHU,LRF251510MKCX,GQB SERIES,HHXJ160ARA151MF61G,HHXJ350□RA181MHA0G,HXF SERIES,LDFL025△△△V22□1E,KVF250L106M55NHT00,LRF372315MKCX,EKXQ451E□□620MM20S,KVD101L155M55A0T00,EGQB350E□□122MM20H,DXE,KVD101L105M55A0T00,EMZS350□RA681MJA0G,EMZL350□RA331MHA0G,DXG,KVF500L685M55NHT00,DXF,HHXE350□RA471MJH0G,GVD SERIES,HHXJ160□RA821MJA0G,LHDM025151DZBV1E,KVD,EGQB250E□□182ML20H,DKA SERIES,EGQB250E□□242MM20H,KVF,KVJ,MZL,EKXQ401E□□181MM40S,DXG SERIES,HHXJ250□RA471MJA0G,LDFL013412VV-□0E,EKXQ401E□□161MMP1S,MZS,SV SERIES,TND10SV621KTLBPAA0,EKXQ451E□□101MLP1S,EKXQ451E□□181MM45S,KTD350B226M55A0T00,EMHL350ADA331MJA0G,EKXQ421E□□181MM45S,LDFL026152VBU□0E,LDFL014172VD-□0E,TND10SV471KTLBPSA0,LDFL021252VBU□0E,DM SERIES,EMZS250□RA561MHA0G,APXN6R3ARA122MJ80G,FL-V SERIES,NTJ SERIES,EKXQ421E□□151MMP1S,LRF372315MCUX,ELBV250E□□622AL25S,KXQ,APXN6R3ARA221ME61G,EMXB350□RA122MMN0S,EKXQ451E□□470ML20S,1MHZ),KVD500L685M55A0T00,EMHL160ADA101MF61G,HSC,GQB,HSF,EMZL250□RA471MHA0G,HSE,DKA,APXN100ARA271MH70G,MHB SERIES,LDFL015372VBU□0E,LHDM015251DYBV1E,EKYC500E□□272MM30S,EGQB350E□□911ML20H,HSF SERIES,MZL SERIES,EMZL500□RA101MHA0G,LHDM020201DZBV1E,EMHL160ADA471MJA0G,KVF250L156M55NHT00,MXB SERIES,MAK SERIES,LDFL007652V6-□0E,LDFL032△△△V22□1E,EMHL160ADA221MF80G,HHXE160□RA561MJC5G,DXE SERIES,LDFL011742VV-□0E,MVH SERIES,HHXE350□RA331MJC5G,EKYC350E□□182MK25S,TND10SV471KTLBPAA0,ELBV250E□□812AM25S,LDFL012282VD-□0E,TND10SV621KTLBPSA0,MHU SERIES,HXC SERIES,HHXE250□RA471MJC5G,KVF101L155M55NLT00,EKYC160E□□472MK25S,EMXB350□RA561MLH0S,EGQB250E□□362MM25H,LDFL006102VS-□0E,NTD SERIES,LDFL012202V6-□0E,TND14SV471KTLBPAA0,EMZL500□RA221MJA0G,EKXQ451E□□161MM40S,TND20SV471KB00AAA0,EMZS350□RA471MHA0G,KTD500B156M55A0T00,HHXJ250ARA151MF80G,EKXQ421E□□161MM40S,HHXJ350ARA101MF80G,LDFL025△△△V8-□1E,ELBV350E□□822AL40S,LBV SERIES,KVJ SERIES,HHXJ350□RA331MJA0G,LESM0301R5P3FV1E,KVF SERIES,KVD SERIES,FL-V,ELBV350E□□562AM25S,HXA,EKXQ451E□□111MMN3S,LHDM015201DXHV1E,ELBV250E□□113AL40S,HXC,GVA,HXE,GVD,MAK,EGQB350E□□182MM25H,HXF,HHXJ250□RA271MHA0G,EGQB350E□□142ML25H,NCM,EKXQ451E□□131MMP1S,TND14SV621KTLBPAA0,HXJ,MAR,LESM050010P1BV1E,NTD,HHXJ160□RA471MHA0G,TND12SV621KTLBPAA0,DXF SERIES,PXN,KVF500L475M55NHT00,FL SERIES,LDFL032△△△VJU□1E,KVF101L155M55BRT00,LDFL006832VD-□0E,KTD101B106M55A0T00,LRF312115MCX,PXN SERIES,HHXJ350ARA560MF61G,KVJ250L226M55BRT00,LDFL009412VD-□0E,EKXQ451E□□820MLN3S,LDFL004272VS-□0E,MHS SERIES,MZS SERIES,KTD250B336M55A0T00,LDFL010302V6-□0E,HXA SERIES,HHXE630□RA151MJH0G,HXE SERIES,EMXB350□RA331MKE0S,HSC SERIES,LRF322015MKCX,GVA SERIES,HHXJ160ARA221MF80G,EKXQ451E□□121ML40S,ELBV350E□□103AM40S,LDFL020592VJU□0E,KVD500L475M55A0T00,KXQ SERIES,HHXE500□RA151MJC5G,HHXE630□RA101MJC5G,EMZS250□RA102MJA0G,ELBV350E□□432AL25S,NCM SERIES,TND20SV621KB00AAA0,HHXE500□RA221MJH0G,APXN160ARA331MJ80G,HHXJ250□RA561MJA0G,EMZL250□RA821MJA0G,MHL SERIES,LBV,HHXJ250ARA820MF61G,EMHL350ADA101MF80G,EKXQ401E□□181MM45S,EMXB250□RA242MMN0S,ELBV250E□□153AM40S,LDFL039172VJU□0E,LESM0400R9P5DV1E,EMHL350ADA221MHA0G,MVH,LDFL027282VJU□0E,LESM0301R5P2DV1E,HHXE250□RA561MJH0G,EMXB250□RA561MKE0S,LDFL008123VV-□0E,KVJ500L685M55BRT00,EKXQ451E□□820MM25S,LRF251515MKCX,APXN2R5ARA331ME61G,LESM030020P7DV1EF,KVF101L105M55NLT00,EKYC350E□□332ML25S,EKXQ451E□□620ML25S,EMXB250□RA102MLH0S,EGQB250E□□272ML25H,LRF262115MCX,KVD250L106M55A0T00,HSE SERIES,MXB,EMZL350□RA561MJA0G,TND12SV471KTLBPAA0,MAR SERIES,KVJ250L156M55BRT00
【经验】解析多层陶瓷电容器的容值与电压的变化关系
设计多层陶瓷电容器(MLCC)时,工程师经常关注的一个问题是容值是否会随着电压的变化而波动——又称 “直流偏压 “或 “电压系数“。本文Knowles主要解析多层陶瓷电容器的容值与电压的变化关系,以及介绍新型电介质材料Hiteca™。
设计经验 发布时间 : 2022-03-14
电子商城
现货市场
服务
可定制射频隔离器/环行器(10M-40GHz),双工器/三工器(30MHz/850MHz-20GHz),滤波器(DC-20GHz),功分器,同轴负载,同轴衰减器等射频器件;可定制频率覆盖DC~110GHz,功率最高20KW。
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整体外形尺寸小至0.6*0.3*0.3mm (DFN0603),工作电压范围覆盖2.5V~36V,电容值低至0.2pF,浪涌能力最高可达240安培,静电等级可达空气放电、接触放电±30KV。提供免费浪涌测试仪、静电测试仪测试。
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