Electromagnetic Buzzers SMD Without oscillator circuit SDR series Issue date: August 2007 All specifications are subject to change without notice. Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.1.18 1.18 (1/3) Electromagnetic Buzzers Conformity to RoHS Directive SMD Terminal SDR Series FEATURES Suitable for calling sound of mobile phones. High quality parts(yoke and magnets) provide high output level of sound pressure in spite of compact size. Provide a good frequency response and high quality sound. Suitable for surface mount process(SMD). Stand up to reflow process twice. APPLICATIONS Mobile phones, pagers. SHAPES AND DIMENSIONS SPECIFICATIONS Part No. SDR08540M3-01 The positive polarity mark Rated voltage Eo-p(V) 3 Operating voltage Eo-p(V) 0 to 5 Drive conditions: Rated voltage, square wave form duty50% () (+) 2 1 Frequency(Hz) 2670 Sound pressure level(dB(A)/10cm)typ. 97 Sound pressure level(dB(A)/10cm)min. 88 Rated current(mA(ave))max. 85 DC resistance( )typ. 16 Operating temperature range 40 to +85C Storage temperature range 40 to +85C ()3 ()4 FREQUENCY CHARACTERISTICS 8.50.2 100 ( ) 4.2 90 80 70 Sound release hole The positive polarity terminal: 1 60 The negative polarity terminal: 2=3=4 common Dimensions in mm 50 0.5 1 2 3 4 5 10 ( ) Frequency kHz RECOMMENDED PC BOARD PATTERN 8.9 RECOMMENDED SOLDERING CONDITION 1.78 REFLOW SOLDERING 2 1 10s 2405C 170C 150C 3 4 Preheating 60 to 150s 4C 30s over 60s The positive polarity terminal: 1 ( ) Time s The negative polarity terminal: 2=3=4 common Dimensions in mm Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications. All specifications are subject to change without notice. 005-02 / 20070807 / ec211 sdr.fm 2.52 8.9 1.78 ( ) 1.2 40.2 8.50.2 ( ( ) ) Sound pressure dB A /10cm