模板-耳机咪头规格书4015和常见参数

第1页共9页MICROPHONESPECIFICATIONSPECIFICATION咪头规格书7108954632ELECTRETCONDENSERMICROPHONE型号：MODEL：4015L8-423-C1033一、主要技术特性Specifications1、灵敏度Sensitivity:-42±3dB(0dB=1V/Pa,1KHz)2、指向性Directivity:Omni-directional3、输出阻抗OutputImpedance:2.2KΩ±30%at1KHz4、标准工作电压StandardOperatingVoltage:2V第2页共9页5、工作电压OperatingVoltage:1.1V~10V6、工作电流CurrentConsumption:＜350μA7、信噪比S/NRatio:≥60dB8、最大音压输入MaxInputSoundLevel115dBS.P.L9、频响曲线FrequencyResponseCurve10、电路示意图SchematicCircuit(Vs=4.5VRL=2.2KΩ)二、机械性能MechanicalCharacteristics1.重量Weight:0.3g2.外形尺寸Dimensions:(Unit:mm)10P33P第3页共9页PartMin.StandardMax.REMARKAφ3.9mmφ4.0mmφ4.1mmB1.4mm1.5mm1.6mmC/9mm10mm11/mmD/0.4mm0.5mm/0.6mmE///F0.1mm0.2mm0.3mmG///3.温度TemperatureA)储藏温度范围StorageTemperature:-40~+65℃B）使用温度范围Operatingtemperature:-20~+50℃4.焊接热冲击SolderingHeatShock经过265±5℃焊接，灵敏度变化在±3dB变化范围内。Aftersolderingheatshockat265±5℃,sensitivitychangewithin±3dBrelativeto第4页共9页initialvalue.三、可靠性试验ReliabilityTest1.振动试验VibrationTest在振动台上，话筒经过三个方向的振动，振幅1.52mm，振动频率由10Hz到50Hz循环，每分钟一次，振动2小时，其灵敏度变化在+3dB范围内。AfterVibrationcycleof10to50Hz/1min,for2hours,fullAmplitude1.52mm,in3directions,Sensitivitychangewithin±3dBrelativetoinitialvalue.2.跌落试验DroppingTest将试验话筒装入包装盒内，分三个不同的侧面，每次从1米高度跌落在地板上，其灵敏度变化在±3dB之内。Withpackage,droppingtoconcretefloor1mheightinthedirectionsofthreedifferentedges,sensitivitychangewithin±3dBrelativetoinitialvalue.3.温度试验TemperatureTestA)高温试验HighTemperatureTest将测试话筒放在+80±2℃的烘箱内，经过200小时，在20℃室温内放置2小时之后测量，其灵敏度变化在±3dB之内。Afterexposureat+80±2℃for200hours,andrecoveringin20℃for2hours,sensitivitychangewithin±3dBrelativetoinitialvalue.B)低温试验LowTemperatureTest将试验话筒放在-25±2℃的低温箱内，经过200小时，在20℃室温内放置2小时之后测量，其灵敏度变化在±3dB之内。Afterexposureat-25±2℃for200hours,andrecoveringin20℃for2hours,第5页共9页sensitivitychangewithin±3dBrelativetoinitialvalue.4.潮湿试验HumidityTest将话筒放置在+60±2℃和相对湿度在90±5％的潮湿箱内200小时，取出后防在20℃室温内2小时之后测试，灵敏度变化在±3dB之内。Afterexposureat+60±2℃andrelativehumidity90±5％for200hours,andrecoveringin20℃for2hours,sensitivitychangewithin±3dBrelativetoinitialvalue.5.温循试验TemperatureCycleTest将试验话筒放在-55±2℃的低温箱内30分钟，取出在室温20℃内10分钟自然恢复后，放入温度为+85±2℃的烘箱内30分钟，取出放在室温20℃内10分钟，此为一个温循过程。经过5次循环，在室温20℃自然恢复2小时后测试，其灵敏度变化在±3dB之内。Afterexposureat5timesofthefollowingcycles,andrecoveringin20for2hours,Sensitivitychangewithin3dBrelativetoinitialvalue.四、结构图MicrophoneMaterialTable-55±2℃+85±2℃+20℃+20℃30m10m30m10m一个周期oneCycle第6页共9页7108954632NOPARTSMODELMANUFACTURER1线路板PCBSuZhouSanSheng2场效应管FET2023电容CapacitorMURATA4塑环HolderSuZhouWorlD5铜环ConnecterSuZhouWorlD6振膜MembraneDUPONTUSA7垫片SpacerWangSunZhuangHeBei8极板PlateSuZhouWorlD9外壳OutermostshellLansenElectronicCorpShanghai10防尘网ProtectionfleeceChangzhouChaoQi11连接线WireUL157132#关于焊接操作第7页共9页Regardingthesolderingoperation每个驻极体传声器中都有一个场效应晶体管，半导体很容易在过热电压过高而受到损害。EachCon.Mic.containsaFETwithinitscase.Generally,semiconductorsareeasilyweakenedbyover-heating,over-chargeofvoltage.正常焊接的注意事项：Specialcautionisneededforpropersolderingasfollows:1.用15W-20W控温烙铁，温度控制在260℃-280℃进行焊接。Use15W-20Wsolderingironandmaintain260℃-280℃inoperation.2.焊接时间在每个焊点上控制在2秒钟以内，不允许时间过长。Solderingshouldbeaccomplishedwithintwosecondsateachterminalsoasnottobeoverheated.3.焊接时间过长，或焊接温度过高，不但会引起场效应管发生变化，并且话筒里面的塑料腔体和膜片也会变形或脱落。Donotmakeacavityatthesurfaceofleadonthepatternplate.(AcavitymaychangethecharacteristicsofCon.Mic.)包装盒Anti-electrostaticPlasticsPackingBoxδ:0.2～0.38.59.806.0