片式多层陶瓷电容器MLCC是适合于表面贴装技术.docx

1、片式多层陶瓷电容器MLCC是适合于表面贴装技术简介 Brief Introduction MLCC简介： 片式多层陶瓷电容器（MLCC）是适合于表面贴装技术（SMT）的小尺寸、高比容、高精度陶瓷介质电容器，可贴装于印刷线路板（PCB）、混合集成电路（HIC）基片，有效地缩小电子信息终端产品（尤其是便携式产品）的体积和重量，提高产品可靠性。顺应了IT产业小型化、轻量化、高性能、多功能的发展方向。 General Introduction Multi-layer ceramic chip capacitor is a kind of ceramic dielectric capacitor wit

2、h small size, high capacitance per volume, high accuracy, suited surface mounted technology (SMT). It is widely used in electronic circuitry, mounted printed circuit board, and hybrid IC. These different functions require specific capacitor properties. MLCC的分类：根据所采用陶瓷介质材料的类型，MLCC可划分为两大类：1类陶瓷介质MLCC具有

3、极高的稳定性，其电容量几乎不随时间、交流信号、外加直流偏压的变化而改变，同时具有极低介质损耗，即高Q值。适用于对容量精度和应用频率要求较高的谐振电路。根据电容量的温度系数又可分为温度稳定型与温度补偿型两种。、2类陶瓷介质MLCC具有很高的比体积电容量，适合用于旁路、耦合、滤波以及对容量稳定性要求不高的鉴频电路。在DC-DC(AC)变换器和开关电源滤波电路正逐步取代钽电解电容器、铝电解电容器。 MLCC can be divided into two classes:Class 1Dielectrics are used with very high Q and linear temperatu

4、re coefficient in these capacitors. They can be distinguished into temperature compensating type and temperature stable type.They can be used in such applications as oscillators and filters where low losses, low capacitance drift or temperature compensation and high stability are required.Class 2The

5、se capacitors have a very high capacitance per volume and non-linear temperature characteristics. They are used for by-passing, coupling, filter and de-coupling. For instance, they can be substituted for the Ta, Al electrolytic capacitors in DC-DC(AC) converters and switching power suppliers. MLCC的制

6、造工艺将化学组成和微观晶相结构符合设计要求的陶瓷原粉和有机粘合剂进行充分混合成为陶瓷料浆，通过流延或喷涂等方式制得所需厚度的生坯膜片。在膜片上印刷内电极后进行叠压、切割成为单个电容器生坯后于10001400之间进行多层共烧，在所得瓷坯两端进行端电极金属化处理后即制成MLCC成品。最后经电性能测试和检验合格，即可包装入库，并交付使用。Manufacture process of MLCC Ceramic powders, which formulation and crystal phase fitted the demand of designing, are carefully mixed

7、with solvent and binder, and then finely milled as slurry. The very thin green sheets can be obtained by casting or spraying the slurry. After this, electrode is printed on the sheets which then be stacked, pressed and cut into chips. The green chip is co-fired at temperatures between 1000 and 1400

8、to become a monolithic block.The final product can be formed by metalizing the termination of the compact ceramic chip. MLCC的结构MLCC的电容量与内电极交叠面积A、介质层数n和陶瓷介质材料的相对介电常数r呈正比，与单层介质厚度T呈反比关系。C = r0An / T额定工作电压主要依赖于介质材料抗电强度、介质厚度以及电容器的结构设计。如图1所示。Structure of MLCC The capacitance of a MLCC depends on the area

9、of the electrodes (A), the thickness of the ceramic dielectric (T) and the dielectric constant of the ceramic material (r) , and the number of dielectric layers (n) with multi-layer ceramic capacitors:C = r0An / TThe rated voltage depends on the structure of the device, the thickness and strength of

10、 the dielectric Figure 1 shows the structure of a multi-layer capacitor. 结构与外形尺寸Structure & Dimension 图1 片式多层陶瓷电容器外形与内部结构Figure 1 Dimension and Cross-section of MLCC尺寸代码GB/IEC/EIA（JIS/EIAJ）长度L/mm宽度W/mm厚度（最小值/最大值）H（Min/Max）/mm端头宽度（最小值/最大值）L1（Min/Max）/mm0201（0603）0.60.030.30.030.27/0.330.10/0.200402（1

11、005）1.00.050.50.050.45/0.550.15/0.350603（1608）1.60.100.80.100.70/0.900.20/0.600805（2012）2.00.20 1.250.200.75/1.350.25/0.75+0.30 1.25 -0.101.15/1.551206（3216）3.20.201.60.200.50/1.800.25/0.75产品型号规格及代码定义Part Number System C 0402 C0G 101 J 500 N T B产品代码Product CodeC表示片式多层陶瓷电容器MLCC尺寸规格Size Type Code（GB/I

12、EC/EIA代码）0201；0402；0603；0805；1206；1210温度系数或温度特性T. C. C0G/C0H/NPO： 030ppm/ /060ppm/ -55 +125X7R： 15% -55 +125X5R： 15% -55 +85Y5V： +22/-82% -30 +85标称电容量代码Capacitance Code表示标称电容量（单位：pF），前两位数码为有效数字，后一位数码为10的幂数；当标称电容量小于10pF时，以字母R表示小数点；如：104=100000pF；4R7=4.7pF；0R5=0.5pF；The capacitance code is expressed i

13、n pico-farads and identified by a three-digit number. The first two digits represent significant figures. The last digit specifies the number of zeros.(Example：104=100000pF； 4R7=4.7pF；0R5=0.5pF；)标称电容量的允许偏差代码Tolerance Code B：0.1pF F：1% K：10% C：0.25pF G：2% M：20% D：0.5pF J：5% Z：+80/-20%额定电压代码Rate Volta

14、ge Code表示额定电压（单位：），前两位数码为有效数字，后一位数码为10的幂数；6R3=6.3V；100=10V；160=16V；250=25V；500=50V；101=100V端电极类型TerminationN表示Ag(或Cu)/Ni/Sn三层结构(Nickel Barrier)；S表示全银端头(Silver)；包装代码Packaging CodeT：纸带包装（7英寸胶盘） T: Paper tape reel 180mm (7inch)H：纸带规格（7英寸胶盘） H: Paper tape reel 180mm (7 inch)P：胶带规格（7英寸胶盘） P: Plastic tape

15、 reel 180mm (7 inch)A：纸带包装（13英寸胶盘） A: Paper tape reel 330mm (13 inch)E：胶带规格（13英寸胶盘） E: Plastic tape reel 330mm (13 inch)B：散包装 B: Brick, Loosed in bag C：塑料盒散包装 C: Bulk cassette厚度代码Thickness Code表示产品厚度，见产品电容量范围与厚度规格表。对于0201、0402、0603等规格只有一种厚度时，该项可以空缺。产品范围、尺寸、厚度 Product Range、Size & Thickness类别CLASS2类陶

16、瓷介质MLCC / Class2TCY5V尺寸规格SIZE0402060308051206额定电压VOLTAGE6.31016256.3101625506.3101625506.3101625470pF680pF1.0nF1.5nF2.2nF3.3nF4.7nF6.8nF10nFBBDDC15nFBBDDC22nFBBDDC33nFBDDC47nFBDDCCCC68nFBDDCCCC100nFBBBDDDDDCCCCC150nFBBDDDDDCEECC220nFBBDDDDDCCCEECC330nFBBDDDDCCEGGCC470nFBBDDDDCCEGGEE680nFBDDDCEEGGEE8

17、20nFBDDDCEGGGEE1.0FBDDDEEGGMFEF1.5FDDEGGGFFEF2.2FDDEGGMFFFF3.3FDEGGFFFL4.7FDGGMFFLL6.8FGGFFL8.2FGGFLL10FMMFLL15FMLL22FMLL33FL47FL68F标称电容量符合E6系列 Rated capacitance meet E6 service .厚度代码ThicknessCode厚度Thicknessmm厚度代码ThicknessCode厚度ThicknessmmA0.300.03G1.250.20B0.50.05H1.500.15C0.60.10M1.25+0.3/-0.1D0.8

18、0.10K0.9-1.30E0.850.20L1.600.20F1.150.20包装 Package 产品厚度和包装数量 Thickness and Packing amount厚度Thickness每卷数量 Amount per reel180mm（7”）180mm（7”）330mm（13”）代号Code类别Class纸带胶带纸带胶带纸带胶带A0.300.0315KB0.500.0510K50KC0.600.104K15KD0.800.104K10K15KE0.850.104K4K/3K15KF1.050.104K/3KG1.250.103K/2KH1.500.152KK0.901.302K

19、L1.600.202K 带式圆盘包装 Tape and reel package带式圆盘包装在高速的生产中被认可.典型的直径为180mm(7英寸)的圆盘可以包装1500-15000粒电容, 直径为330mm(13英寸)的圆盘可以包装10000-50000粒电容.带式圆盘包装包括纸带包装、胶带包装两种方式。Tape and reel packaging is currently the most promising system forhigh-speed production, A typical 180mm(7inch)diameter reel contains 2,000 to 15,0

20、00 capacitors,330mm(13inch)diameter reel contains 10,000 to 50,000 capacitors, Tape and reel packaging comprises paper tapes and plastic tapes. 纸带标准 Paper tape specifications 单位：mm代号MAXClass产品尺寸代号 Product Size Code单位Unit02010402060308051206尺寸Size尺寸Size尺寸Size尺寸Size尺寸SizeA0.370.030.700.051.00.21.60.22

21、.00.2mmB0.670.031.200.051.80.22.40.23.60.2mmFF3.500.053.500.053.50.053.50.053.5.005mmP2.000.102.000.104.00.12.00.14.00.14.00.1mmW8.000.208.000.208.00.28.00.28.00.2mm1.750.05P上盖带 Top tape 圆盘标准：Reel Specification 单位：mmTape Width（mm）G（mm）T（max）（mm）D（mm）810.014.4180810.014.4330Full Radius 纸带规格： Taping F

22、igure:胶带规格： Plastic Figure: Trailer Worker Unseal Leader Feeding DirectionPacking包装Minimum length of Empty compartments预留空格的最短长度TapeTrailerUnsealLeaderPaperorPlastic160 mm160mm160 mm 纸带性能 Performance of Taping 纸带和上盖带的剥离强度.Strength of Carrier Tape and Top Cover Tape 纸带 Carrier Tape纸带在伸直状态下应该能经受1.02kg

23、的压力。When a tensile force 1.02kgf is applied in the direction of unreeling the tape, the tape shall withstand this force. 上盖带 Top cover Tape上盖带应该能经受1.02kg的压力。When a tensile force 1.02kgf is applied to the tape, the tape shall withsand this force. 上盖带剥离强度 Peel Force of Top Cover Tape除非有特殊规定，上盖带以300mm/

24、min的速度，165180的角度（如下图）剥离纸带时，剥离强度应该在1060g之间。Unless otherwise specified, the peel force of top cover tape shall be 10. to 60 gf when the top cover tape is pulled at a speed of 300mm/min with the angle between the taped during peel and the direction of unreeling maintained at 165 to 180as illustrated in Fig. 产品技术指标和试验方法序号项目技术指标试验方法2类瓷1类别温度范围Y5V：-30 +852额定电压UR参照前页在下限类别温度和额定温度之间的任一温度下，可以连续施加在电容器上的最大直流电压或脉冲电压的峰值。注：电容器所施加的直流电压和交流峰值电压之和应不超过额定电压，交流电压峰值不应超过允许无功功率所额定的值。3外观无损伤和异常10倍显微镜下目测4外形尺寸标准尺寸精度范围采用精度不低于0.01 mm的千分尺5