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1、风华高科广东风华高新科技股份有限公司FENGHUAFenghuaAdvancedTechnology(Holding)CO.,LTD一概述电容器及介质种类高频类此类介质材料的电容器为类电容器包括通用型高频COG电容器和温度补偿型高频HGLGPHRHSHTHUJSL电容器其中COG电容器电性能最稳定几乎不随温度电压和时间的变化而变化适用于低损耗稳定性要求高的高频电路如滤波器谐振器和计时电路中X7RX5R此类介质材料的电容器为类电容器具有较高的介电常数容量比类电容器高具有较稳定的温度特性适用于容量范围广稳定性要求不高的电路中如隔直耦合旁路鉴频等电路中Y5V此类介质材料的电容器为类电容器是所有电
2、容器中介电常数最大的电容器但其容量稳定性较差对温度电压等条件较敏感适用于要求大容量温度变化不大的电路中Z5U此类介质材料的电容器为类电容器其温度特性介于X7R和Y5V之间容量稳定性较差对温度电压等条件较敏感适用于要求大容量使用温度范围接近于室温的旁路耦合等低直流偏压的电路中SUMMARYTypesofDielectricMaterialandCapacitorHIGHFREQUENCYTYPE:ThecapacitorofthiskinddielectricmaterialisconsideredasClasscapacitor,includinghighfrequencyCOGcapac
3、itorandtemperaturecompensatingcapacitorsuchasHG,LG,PH,RH,SH,TH,UJ,SL.TheelectricalpropertiesofCOGcapacitorarethemoststableoneandhavelittlechangewithtemperature,voltageandtime.Theyaresuitedforapplicationswherelow-lossesandhigh-stabilityarerequired,suchasfilters,oscillators,andtimingcircuits.X7RX5R:
4、X7RX5Rmaterialisakindofmaterialhashighdielectricconstant.ThecapacitormadeofthiskindmaterialisconsideredasClasscapacitorwhosecapacitanceishigherthanthatofclass.Thesecapacitorsareclassifiedashavingasemi-stabletemperaturecharacteristicandusedoverawidetemperaturerange,suchinthesekindsofcircuits,DC-blo
5、cking,decoupling,bypassing,frequencydiscriminatingetc.Y5V:Thecapacitormadeofthiskindofmaterialisthehighestdielectricconstantofallceramiccapacitors.Theyareusedoveramoderatetemperaturerangeinapplicationwherehighcapacitanceisrequiredbecauseofitsunstabletemperaturecoefficient,butwheremoderatelossesand
6、capacitancechangescanbetolerated.Itscapacitanceanddissipationfactorsaresensibletomeasuringconditions,suchastemperatureandvoltage,etc.Z5U:ThecapacitormadeofthiskindofmaterialisconsideredasClasscapacitor,whosetemperaturecharacteristicisbetweenthatofX7RandY5V.Thecapacitanceofthiskindofcapacitorisunst
7、ableandsensibletotemperatureandvoltage.IdeallysuitedforbypassinganddecouplingapplicationcircuitsoperatingwithlowDCbiasintheenvironmentapproachestoroomtemperature.风华高科广东风华高新科技股份有限公司FENGHUAFenghuaAdvancedTechnology
