MEB MicroBuzzersWithOscillatingCircuitMEBSeries MEB-12-5 Features 1. Ultracompact,ultrathinandlight weightconstruction 2. Oscillatingcircuitisbuiltin. 3. Non-mechanicalcontactsafford reliablityandlonglife. 4. Noelectricalnoise 5. Lowcurrentconsumption,yethigh soundpressurelevel 6. Asanoptionalpart,carriertube magazineisavailableforautomatic insertionfor someofthebuzzers. 1. 2. 3. 4. 5. 6. Application 12x7.5mm Officeautomationequipment,electric householdequipmentetc. OA Precautions 1. 2. ( ) 3. 4. 5. 6. 2 3 7. 50msec 100msec 1. Stressorforceshouldnotbeaddedto therootportionofleadpins. 2. Asthesoundpressurelevelishighly affectedbyenvironmentalelements suchasbaffle,cavityandinterfering objects,duecaremustbetakento avoidadversereactions. 3. TheMEBshouldbefreefromdirt,dust, condensation,gasoffluxandother foreignparticles.Thisshouldbetaken intoaccountwhendesigningthe apparatus.Shouldtheseparticlesget insidetheMEBthroughthesound outputhole,thecharacteristicsofthe MEBmaybechanged. 4. Usethebuzzerwithapowersupply withavoltagewhichhasstabilizedfully withintheoperatingvoltagerange. 5. Ifaresistanceinseriesisusedto reducethevoltageonwhichthebuzzer operates,itsoperationwillbeunstable, sothispracticeshouldbeavoided. 6. Thepeakcurrentwhichflowsistwoor threetimesgreaterthantheaverage currentconsumed,soensurethatthe circuitusedisabletosupplyan adequatecurrent. 7. Theresponsetimeis50ms;therefore, avibrationtimeof100msorgreater shouldbesetasaguideline. Pleaseseetheindividualspecifications manualandapplicationsmanualfor precautions. /Outlinedrawing 2.5 Sound output hole 7.6 0.7 12 (+)Terminal Epoxy resin 0.5 7.5 7 6 (+) 12 (-) (-)Terminal /Unitmm 125 /Codeforparts MEB-12C5 /Self-oscillatingmicrobuzzer (mm)/Diameter(inmm)ofthetopcover /Developmentsequenceinalphabeticalorder /Ratedvoltage /Specifications(MEB-12C-5) Rated voltage Averagecurrent (mA) consumption 5 (VDC) Sound pressurelevel Operating (VDC) voltagerange (dB) Operating temperature Pinpolarity -20()60() 25(at5V) min.80 at5VDC typ.87 at10cm () /Longpin () 36 (-) /Shortpin Netweight (grs.) (MEB-12C-5)/StandardDrivingCircuit(MEB-12C-5) +5V The internal circuit of MEBs is shown within the dotted lines. lb Tr : 2SC945 (MEB ) Tr : 2SC945 (for swithing of the MEB) Icmax100mA UsetheIcmaxwithatransistorofatleast100mAina saturatedstate. 126 1.6