【经验】解析SLC和MLCC这两种电容器的应用

2022-05-10 Knowles
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电容器是电路设计中必不可少的无源元件,如今,市面上可供选择的电容器规格非常多。因此,要确定哪种电容器最适合您的应用并不是一件容易的事,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。要确定哪一种最贴合您的需求,我们不妨从它们各自的基本结构入手进行探讨。SLC是最基本的电容器类型,它的正负电极间仅仅只有一层电介质材料或绝缘层。


MLCC基于SLC设计的基本原理,在单一电容器的电介质中分层嵌入多层电极,由此获取的MLCC的容值相当于多个SLC并联使用的电容量。尽管从厚度上看,MLCC比SLC要略厚,但它却能以更小的体积实现更大的容值——这正是当前对电容器的尺寸、重量和功率(SWaP)比较注重的射频、微波类应用需要考量的关键因素。图1展示了SLC与MLCC的基本结构。

1.SLC较为适合的应用场景

SLC是专门为微波和射频应用而设计的。这是因为SLC固有的自谐振频率(SRF,即电容器会表现出最小阻抗的点)是分立块状定值电容器中最高的。


值得注意的是,一般来说ESR(即与电容器串联的内部电阻)随频率而变化,所以使用低ESR的电容器是十分必要的。此外,由于SLC是单片集成形式,其包含的机械元件数量有限,这也有助于降低ESR值。


然而,SLC有一个潜在的缺点——由于它只是单层结构,容值在很大程度上取决于所使用的电介质的介电常数,这在一定程度上局限了所能获取的最大容值。因此,SLC主要适用于高频率、低容值的应用。楼氏电容(KPD)是为LC滤波器市场提供定制高值平行板电容器的领导者。


2.MLCC较为适合的应用场景

一般来说,MLCC的容值范围比SLC高得多,因此可适用于各种场合。MLCC由多层电介质和电极组成,除了更高的容值外,还能承受更高的工作电压——楼氏电容(KPD)制造的MLCC目前最高耐压可达12kV。然而,由于使用了多层电极和电介质,MLCC的ESR值通常比SLC高得多。因此,MLCC(含高Q值、超低损耗的一级电介质MLCC),只能处理30GHz以下的频率,而SLC可以处理高达100GHz的频率。


在射频和微波应用中,如果对容值和电压同时具有较高的要求,那么MLCC是比较合适的选择。在除射频微波应用之外的其他应用中,MLCC,尤其是楼氏电容(KPD)制造的具有创新设计的MLCC,是医疗植入、汽车电子及高可靠性爆破等严苛性应用的理想之选。


综上所述,由于SLC和MLCC在耐压、频率、容值等参数方面各有千秋,因此在应用中是不可互换的。简而言之,SLC非常适用于高频、低压的射频微波应用,而MLCC可以在更有限的频率范围内适用于各种类型的高压高容应用。

授权代理商:世强先进(深圳)科技股份有限公司
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本文由FY转载自Knowles,原文标题为:SLC VS. MLCC,哪种电容器更适合您的应用?,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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选型指南  -  微容科技  - 2021/9/14 PDF 中文 下载

Exxelia 微波器件(陶瓷电容器、陶瓷材料和调谐元件)选型指南

目录- RF & Microwave Capacitors    Ceramic Capacitors    Voltage Multipliers    Ceramic Materials    Frequency Tuning Components   

型号- AT 6926-6 SL ROHS,AT 03HV06 ROHS,AT 9410G-0 ROHS,AT 9402G-8 ROHS,AT 9402G-8 SL1 ROHS,AT 6930-4 ROHS,AT 03HV00 SEREIES,AT 1320,AT 2320G-3 ROHS,AT 23XXG,E7000 SERIE,E6000,AT 9401G-2 ROHS,E6345N,E6345,AT 1310,AT 6965 ROHS,AT 0340,AT 6924-0 SL ROHS,Y101/E16 D19X15X0.8,AT 1315,Y11,Y13,Y12,Y15,Y14,E5380,Y16,E21836,E7424,E5000,AT 9410G SERIES,AT 9402G ROHS,AT 1340,501 CHB 470 J1L,AT 9410G-4 ROHS,AT 6933-0 SL ROHS,101V20T680KT4W,362 CPE 470 J1L,Y4XXX,501 SHR 100 JSLE,702 VM7 G2,AT 1330,D1,D2,D3,D4,D5,AT 9402G-1 ROHS,AT 6926-0 SL ROHS,AT 2728X ROHS,Y31,AT 6930-8 ROHS,Y30,AT 6948 ROHS,AT 9402G-4 ROHS,302 VM6 G2,Y33,Y32,Y35,E4030,Y34,Y37,Y36,AT 03HV00,AT 9410G-3 SL1 ROHS,Y39,Y38,AT 1300 ROHS,152 CHB 100 JS□LE,AT 0310,AT 8054 ROHS,AT 5702 ROHS,AT SM280 ROHS,AT 0315,AT 27283 ROHS,501 SHD 100 JSLE,AT 6965-0 SL ROHS,AT 4011-1 ROHS,AT 5202 ROHS,AT 6995-2 ROHS,AT 6501-2 ROHS,E4000,E3034,AT 9410G-25 ROHS,AT 57290 ROHS,AT 0306,DX,AT 6997-3 ROHS,AT 5501 ROHS,AT 2726X ROHS,AT 0303,AT 8053 ROHS,E61245,E7624,AT 5853 ROHS,AT 5500 ROHS,E4230,AT 5800 ROHS,AT 27263 ROHS,AT 0330,AT 6996-6 ROHS,AT 1306,AT 1303,AT 6924 ROHS,160S41B106KSE,AT 27278 ROHS,E6645,AT 6997-4 ROHS,AT 9410G-4 SL1 ROHS,AT 0320,501 CHB 470 JC1L,E2000 SERIE,AT 6924-3 SL ROHS,AT 6950-1 SL ROHS,Y71,Y72,Y75,AT 5201 ROHS,Y74,Y77,Y76,AT 5450 ROHS,Y78,E5680,AT 6925-8 SL ROHS,E21536,E2036,E4330,E3000,AT 27288 ROHS,A500,501 SHB 470 JC1L,AT 9410G-1 ROHS,500R15X104KSE,AT 6952 ROHS,AT 6997 ROHS,AT 9410G ROHS SERIES,AT 5300 SERIES,AT 9402G-2 SL1 ROHS,AT 9402G SERIES,AT SM 280 ROHS,Y908,E3234,AT 6925-7 SL ROHS,TG 092 ROHS,AT 9401G-4 SL1 R3 ROHS,AT 6935 ROHS,Y9081,AT 57250 ROHS,Y91,501 SHB 100 JS□LE,302 VM4 G2,AT 9410G-0 SL1 ROHS,AT 0300 ROHS,U19,AT 9401G-2 SL1 ROHS,AT 6995 ROHS,AT 03HV03 ROHS,NZ50,AT 2320G-0 ROHS,E4430,U20,U21,AT 03HV20 ROHS,AT 6996-5 ROHS,AT 6926-7 SL ROHS,AT 5852 ROHS,E2000,AT 9402G-4 SL1 ROHS,AT 03HV10 ROHS,AT 6924-1 SL ROHS,AT 6929-0 SL ROHS,D18,AT 2340G-4 ROHS,NZ40,AT 27293 ROHS,U33,AT 6501-1 ROHS,E41030,AT 4012-2 ROHS,E2036 C 11.00X4.00X5.35,AT 5850 ROHS,E5980,AT SM 270 ROHS,AXXX,AT 6927-0 SL ROHS,AT 03HV15 ROHS,AT 5802 ROHS,AT 6927 ROHS,AT 6925-1 SL ROHS,AT 5302 ROHS,501R6560X105KP□,E4000 SERIE,E3434,AT 55H01 ROHS,Y705,E6945,Y708,AT 6926-1 SL ROHS,Y710,AT 6924-2 SL ROHS,AT 6928-0 SL ROHS,AT 6995-0 ROHS,AT 52H02 ROHS,E4630,AT 5400 ROHS,AT SM 290 ROHS,AT 8050 ROHS,AT 5453 ROHS,E2336,E2036/AL C 11.00X4.00X5.35,AT 9410G ROHS,AT 5752 ROHS,AT 9402G-6 ROHS,AT 6997-1 ROHS,AT 5601 ROHS,AT 6996-3 ROHS,AT 2320G-2 ROHS,AT 9410G-3 ROHS,AT 6950 ROHS,AT 6922 ROHS,AT 5702 S ROHS,AT 9401G ROHS,AT 2727X ROHS,AT 6925-3 SL ROHS,UXX,TG 091 ROHS,AT 6996-8 ROHS,AT 9402G-1 SL1 ROHS,AT 27283 R1 ROHS,AT 9410G-1 SL1 ROHS,Y9XX,AT 9410G-2 ROHS,AT 5801 S ROHS,AT 55H01,AT 55H02,E3634,A230,AT 27273 ROHS,AT 5600 ROHS,A23,E3434N,E4830,A24,AT 9401G-1 SL1 ROHS,A28,AT 5200 ROHS,AT 9401G-4 ROHS,NXXX,Y7XX,AT 2320G-1 ROHS,AT 6997-5 ROHS,A30,Y780,AT 6996 ROHS,A37,AT 2320G-1 SL ROHS,AT 8052 ROHS,Y409,AT 27261 ROHS,A370,AT 1310 ROHS,AT 6926 ROHS,AT 6929 ROHS,AT 6501-0,-1,-2 ROHS,AT SM 260 ROHS,CRS06TQ1500FS0TRFXXXROHS,AT 5750 ROHS,AT 27273 + CAP ROHS,E3234N,AT 5451 ROHS,E2636,AT 9402G-2 ROHS,AT 4010-1 ROHS,Y4091,AT 5402 ROHS,AT 6501-3 ROHS,A50,AT 6996-1 ROHS,AT 9410G-5 ROHS,AT 5701 ROHS,AT 27298 ROHS,E3834,E5000 SERIE,AT 27268 ROHS,501 NHB 100 JSLE,AT 6926-5 SL ROHS,E21236,Y219,AT 6925-0 SL ROHS,Y218,AT 6925 ROHS,Y101,AT 9402G,E6645N,AT 6933-2 SL ROHS,AT SM,Y220,AT 9402G-9 ROHS,Y208,E31034,Y209,AT 6952-0 SL ROHS,AT 03HV08 ROHS,AT 9401G-0 SL1 ROHS,152 VM3 G2,Y211,AT 9402G-4 SL1 R3 ROHS,Y210,Y212,Y101S 50.8X50.8X0.635 M,Y101 D19X15X0.8,Y215,Y216,N19,AT 9401G ROHS SERIES,AT 2320G-2 R1 ROHS,AT SM290 ROHS,AT 9401G-0 ROHS,AT 6934 ROHS,AT SM 260 R1 ROHS,AT 52H01,AT 5850 ROHS SERIES,N24,N28,AT 9401G-1 ROHS,101S41N472JCE,AT 9410G-25 SL1 ROHS,AT SM270 ROHS,CRS06TQ1500FS1EROHS,N32,AT 52H02,362 CPE 470 JC1L,AT 9410G-5 SL1 ROHS,E3000 SERIE,AT SM260 ROHS,AT 5700 ROHS,E7024,E2936,AT 6933 ROHS,AT 5300,E6000 SERIE,AT 9401G-4 SL1 ROHS,AT 6928-2 SL ROHS,Y3XX,AT SM SERIES,AT 5452 ROHS,E6045,AT 5801 ROHS,AT 9402G ROHS SERIES,AT 6995-1 ROHS,AT 5751 ROHS,AT 9410G,AT 5401 ROHS,E5080,AT 9402G-9 SL1 ROHS,501 SHB 470 J1L,AT 6928 ROHS,AT 55H02 ROHS,E2036 C 11.00X4.00 F5000+/-50,AT 6926-4 SL ROHS,Y2XX,AT 52H01 ROHS,AT 4012-1 ROHS,AT 6933-1 SL ROHS,AT 6997-2 ROHS,AT 5502 ROHS,AT 6935-0 SL ROHS,AT 6996-2 ROHS,AT 5602 ROHS,AT 6996-4 ROHS,AT 2729X ROHS,AT 5851 ROHS,AT 5301 ROHS,AT 9402G-6 SL1 ROHS,AT 6997-0 ROHS,AT 6950-0 SL ROHS,E7000,AT 6934-0 SL ROHS,AT 6925-9 SL ROHS,AT 5753 ROHS,E7224,362 CPX 100 GC1□L□,AT 9410G-2 SL1 ROHS,AT 9410G-2 SL1 R7 ROHS,Y1XX,AT 8051 ROHS,E2336N,AT 9402G-0 SL1 ROHS,362 CLX 100 GC1□L□,AT 6926-9 SL ROHS,AT 6501-0 ROHS,AT 0303 ROHS,802H6560X182KPE-ROHS,AT 9402G-0 ROHS,AT 6948-0 SL ROHS,AT 23XXG SERIES,AT 6926-10 SL ROHS

选型指南  -  EXXELIA  - 09/2021 PDF 英文 下载

【元件】微容片式多层陶瓷电容器GQC/SQC/SPC系列,适用移动通信基站于射频大功率发射

微容推出片式多层陶瓷电容器(MLCC)--射频GQC/SQC/SPC系列,使用了在高频中介质损耗极低的陶瓷材料,并使用镍或者铜金属作为内部电极材料,具有高Q值和低ESR的特点,以其独特的结构和卓越的性能,为射频电路提供了多样化选择,无论从低压到高压,还是从小尺寸到大尺寸,亦或是从低频到高频,这些射频电容都能满足您的需求。

应用方案    发布时间 : 2024-04-30

国产高端MLCC龙头厂商微容科技,带来车规/超微型/射频/高容量等全线MLCC产品

2022年6月24日, 广东微容电子科技有限公司(下称“微容科技”)与世强先进(深圳)科技股份有限公司(下称“世强先进”)签署代理协议,授权世强先进代理其旗下片式多层陶瓷电容器(MLCC)全线产品。

公司动态    发布时间 : 2022-08-22

解析在光伏领域中常见的电容器应用

随着太阳能电子技术的持续创新和公众对光伏设备兴趣的不断增长,对于构建坚固且高效的电子元件的需求变得越来越明显。在这些电子元件中,电容器发挥着至关重要的作用。特别是在功率转换系统中,它们能够有效地平滑和调节功率流动,抵御电压突波的冲击,并精确地滤除不必要的信号干扰,确保系统的稳定运行和高效能量转换。

技术探讨    发布时间 : 2024-08-28

Knowles(楼氏电子)单层电容器(SLC)选型指南

目录- Precision Devices Introduction    Simplified Frequency & Product Application Chart    SINGLE LAYER CAPACITORS DLI    SINGLE LAYER CAPACITORS COMPEX    SUBSTRATES & HEATSINKS DLI    BROADBAND DEVICES DLI    RF COMPONENTS DLI   

型号- V30BZ102M6S,P42BNL820MA03152,CSB SERIES,F15NR0R1M1PX3,D10CFOR1A5PX,CSA SERIES,V30BZ222M8SX,P62BNL820MA02636,AEQ3042,C-BN,C06BL851X-1UN-X0T,P42NR2R0K5S,AEQ2199,AEQ2234,V30BZ103M1SX,C-28,C-BE,C-BD,P62CG1R0C5S,C-20,P21BNL300MA03976,BAR CAP®,P42CG1R5C5S,V30BZ472M1SX,S20AG250DZNX,F20CG0R1M1PX3,C-140,GAP CAP®,AEQ3055,C-37,CR6-BN-105X25X4-5-G-101-Z,C-35,C-30,P21BNL300MA04678,C08BL242X-5UN-X0T,J30XXBA012LX4,C18BL103X-4UN-X0T,J30BJBA022LX2,F15CGR08M5PX3,AEQ2050,V30BZ472M1S,P62CD0R7B5S,B28BJBFN01,CSM-BE-10X10-X5-G-2R9-M,J30BLBA032LX1,AEQ05510,C06BL,DR03F36Q1550AYB,P42BNL820M5S,B20BLSBN01,V30BZ102M6SX,C-40,SBT-28-20X20X6-G-S5,CR SERIES,T30BV30X45PX,C-120,J30BJBA002LX3,BINARY CAP®,CSM SERIES,AEQ05470,AEQ06042,AEQ05471,F35CG0R4M1PX3,CSB-100-50X20X7-10-G-120-M,AEQ05472,C-400,MST,C-58,AEQ05467,AEQ05468,C-55,AEQ05469,C-50,J30BLBA012LX4,V SERIES,E40BU151Z1PX4,PX42UX104KCSX,BORDER CAP®,DI-CAP®,P62NV100M5S,F25NR0R4M1PX3,C-NR,P62BNL820M5S,V30BZ102M5SX,CSA-200-10X10X6-G-101-M,OPTI-CAP®,C-100,MILLI-CAP®,D10BJ100K1EX,PX SERIES,F35CF0R1M1PX3,PX42UX104KCZX,BINARY-CAP®,MST-30-25X20X6-G-S5,V30BZ682M1S,AEQ05246,C18BL,F25CG0R2M1PX3,SBT SERIES,V30BZ682M1SX,V80BZ104M5SX,BI-CAP®,V30BZ103M1S,P62CF0R5B5S,C04BL121X-5UN-X0T,F25CFR08M5PX3,J30BJBA032LX1,V80BZ104M5S,F20NR0R2M1PX3,J30BLBA022LX2,AMPLIFIER BYPASS SAMPLE KIT,P21BNL300M5S,CSA,MST SERIES,C08BL,CSB,P21BNL300MA04282,J30XXBA002LX3,C04BL,CSM,CM SERIES,C-80,BAR-CAP®,SBT,T-CAP®,G10BU100K5PX05,F40NR0R5M1PX4,J30BLBA002LX3,C-200,P42BNL820MA04679,ENG DESIGN KIT SLC,V30BZ222M8S,H20CG250DZNX,C08BL102X-1UN-X0T,B20BHSBN01,B28BHBFN01,B28BTBFN01,J30BJBA012LX4,P21BNL300MA04733

选型指南  -  KNOWLES  - R/7.2  - 2023/8/19 PDF 英文 下载

探索楼氏电容器在电动汽车中的关键作用 (下)

在上期的内容中,我们为大家初步介绍了电容器在电动汽车电力系统中的多种作用,今天我们将就其在牵引逆变器(直流至交流)、车载充电器(交流至直流)和DC-DC转换器中的具体应用进行介绍。

技术探讨    发布时间 : 2024-08-22

Knowles(楼氏电子)多层&单层陶瓷电容器和薄膜器件选型指南

目录- Introduction    Single Layer Capacitors    Multilayer Ceramic Capacitors    Broadband Blocking Capacitors    Thin Film Devices   

型号- E40BU151Z1PX4,UL SERIES,L128XH4S,J30XXBA012LX4,F15NR0R1M1PX3,P_2CF0R3B5ST,P21BN300MA3976,S20CG250DZNX,C06BL851X-1UN-X0T,G10BU100K5PX10,P21BN300MA04678,NA SERIES,F25NR0R4M1PX3,P_2NR3R0K5ST,P21BN300MA04282,P_2CF0R5B5ST,B056RC4S,C17CF620J-7UN-X0T,D10XXKITA1EX,P62BN820MA02636,D10XXKITA5PX,D10CF0R1B5PX,F20CG0R1M1PX3,B096QC2S,D10BN100K1EX,G20XXKITAPX10,F35CF0R1M1PX3,P21300MA4678,B033ND5S,D15XXKITA5PX,L065XG9S,F25CG0R2M1PX3,P_2BN820Z5ST,P_2CD0R7B5ST,L254XF3S,L095XG9S,C08BL242X-5UN-X0T,D20XXKITA5PX,P21300MA4282,F15CGR08M5PX3,P42BN820MA03152,B28BLSBN01,P21BN300MA04572,L204XF4S,C04BL121X-5UN-X0T,C18BL103X-4GN-XOT,D15XXKITA1EX,F25CFR08M5PX3,PDW05758,D30XXKITA1EX,F20NR0R2M1PX3,P21BN300MA04733,B028RF2S,J30BLBA032LX1,G10XXKITAPX05,AH SERIES,J30XXBA002LX3,P42BN820MA04679,CF SERIES,P_2CG1R5C5ST,T30BV30X45PX,P21300MA4572,P_2CG1R0C5ST,L117XH4S,G15XXKITAPX08,D30XXKITA5PX,D20XXKITA1EX,F40NR0R5M1PX4,G25XXKITAPX10,D25XXKITA5PX,C17AH620J-7UA-X0T,D25XXKITA1EX,F35CG0R4M1PX3,P21BN300MA03976,P21300MA4733,C08BL102X-1UN-X0T,B28BTBFN01,L157XG3S,B148QF0S,C17UL620J-7UN-X0T

选型指南  -  KNOWLES  - 2017/5/10 PDF 英文 下载

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多层HDI高频PCB定制

可加工PCB层数:4~32层,加工板材:多层板/HDI板/FR4板/高频板/高速板/高温板/铜基板/铝基板/陶瓷基板/软硬结合板,成品尺寸:3~1100mm,板厚:0.15-80mm,最小孔径:0.1mm,铜厚:最高14oz。

最小起订量: 1 提交需求>

CTP触摸屏定制

可定制OGS一片式电容屏,G+G电容屏,G+F电容屏,G+F+F电容屏,尺寸范围:1”~21”,单层产品厚度:0.55mm~2mm,可按客户要求在产品上附加防反射,防指纹,多色丝印,钻孔磨边,2.5D导圆角等工艺。

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