CONTENTS 2/9 1.1 OEM7474R. Specification for Buzzer. 1. Scope. 2. General. 3. Maximum Rating. 4. Electrical Characteristics. 5.

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1 2/9 CONTENTS 1. Scope 2. General 3. Maximum Rating 4. Electrical Characteristics 5. Measuring Method 6. Physical Characteristics 7. Environmental Characteristics 8. Dimensions 9. Packaging Standard 10. Cautions 11. Cautions for Use 12. Revision

2 Model No. : KPI-G1410C-K7474 3/9 1. Scope This product specification is applied to the piezoelectric sounder in alarm systems.please contact us when using this product for any other applications than described in the above. 2. General 2.1 Out-Diameter : Ø14mm Ø14mm 2.2 Height : 7.8mm 7.8 mm 2.3 Weight : 2gr Case Material/Color : PBT/Black /: PBT/ 3. Maximum Rating Item Specification input Voltage Operating Temperature Range Storage Temperature Range VDC Electrical Characteristics Item Specification Sound Pressure Level Max.Rated Current Resonant Frequency Tone Nature 85dB at 12VDC(With Test Circuit)/10cm 8mA at 12VDC 4.3± 0.5KHz Continuous Refer to next item for measuring method.

3 5. Measuring Method 5.1 S.P.L. Measuring Circuit 4/9 :12VDC Input Signal:12VDC 10cm Mic. piezoelectric sounder Amp. MIC : ND10 MIC : ND10 Sound Meter or equivalent S.G. : DF1731SL3A S.G. : DF1731SL3A DC Power Supply or equivalent 5.2 Measuring Condition +25± 360± 10%R.H.,, ,45 85%R.H.. Part shall be measured under a condition (Temperature :+5 to +35,Humidity :45 to 85%R.H.)unless the standard condition (Temperature :+25 3,Humidity :60 10 %R.H.) is regulated measure.

4 5/9 6. Physical Characteristics Item Test Condition Specification 6.1 Shock 490m/s 2 XYZ 3 Sounder shall be measured after being applied shock(490m/s 2 ) for each three mutually perpendicular directions to each of 3 times by half sine wave. 6.2 Vibration Resistant Hz,1.5mm,XYZ 2,. Sounder shall be measured after being applied vibration of amplitude of 1.5mm with 10 to55hz band of vibration frequency to each of 3 perpendicular directions for 2 hours. 1 The measured value shall meet Table Soldering Heat Resistance ( 1.5mm ) , 4,. Lead terminal are immersed up to 1.5mm from sounder's body in solder bath of for seconds or for 10 1 seconds, and then sounder shall be measured after being placed in natural condition for 4 hours. 6.4 Solderability 5, Lead terminals are immersed in rosin for 5 seconds and then immersed in solder bath of for seconds. 90%.( ) 90% min. lead terminals shall be wet with solder. (Except the edge of terminal) 6.5 Terminal Strength Pulling The force 10 seconds of 9.8N is applied to each terminal in axial direction. No visible damage and cutting off

5 6/9 7. Environmental Characteristics 7.1 Item Dry Heat Test (Storage) Test Condition After being placed in a chamber with for 96 hours and then being placed in natural condition for 4 hours, sounder shall be measured. Specification 7.2 Cold Test (Storage) After being placed in a chamber with for 96 hours and then being placed in natural condition for 4 hours, sounder shall be measured. 1 The measured value shall meet Table Humidity 90% 95% R.H., After being placed in a chamber with 90 to 95%R.H. at +40± 2 for 96 hours and then being placed in natural condition for 4 hours, sounder shall be measured. 7.4 Temperature Cycle (+20 )15, (+20 )15. 5,4 After being placed in a chamber at for 30 minutes, sounder shall be placed at room temperature(+20 ).After 15 minutes at this temperature,sounder shall be placed in a chamber at After 30 minutes at this temperature, sounder shall be returned to room temperature (+20 ) for 15 minutes. After 5 above cycles, sounder shall be measured after being placed in natural condition for 4 hours. 1 Table 1 Item Sound Pressure Level Specification after test ± 10dB Initial Value± 10dB

6 8. Dimensions 7/9 KEPO FIRST ANGLE PROJECTION UNIT : mm Tolerance : ± 0.5

7 8/9 9. Packaging Standard Each minimum package unit of products shall be in a carton box and it shall be clearly marked with Part Number, quantity and outgoing inspection number. There shall be no mechanical damage on products during transportation and/or in storage. 10. Cautions Please contact us before using our products for the undermentioned applications requiring especially high reliability in order to prevent defects which might directly cause damage to other party'slife, body or property(listed below). Aircraft equipment Aerospace equipment Undersea equipment Medical equipment Transportation equipment (automobiles,trains,ships) Traffic signal equipment Disaster prevention/crime prevention equipment Data-processing equipment Applications of similar complexity or reliability requirements comparable to the applications listed in the above 11. Cautions for Use 1,. The component may be damaged if mechanical stress over this specification is applied. 11.2,. Please pay attention to protect operating circuit from surge voltage provided by something of force such as failing,shock and temperature changing. 11.3, +350, 3. In case of using solder iron for soldering, the top of soldering iron's temperature should be kept less than +350.Moreover the soldering time should be also kept with in 3seconds.

8 9/9 Model No. : KPI-G1410C-K Revision Rev. No. DATE PAGE DESCRIPTION SIGN / primary Change Test