Owner's manual

400mm
100mm
Sounder
1.3 Test method:
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This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
and shall not be used in whole or in part without its written content
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Piezo Sounder
Page:2 of 6
DRG NO: BS/TEP01.810A
No. Item Specification
1. Rated Voltage(Square Wave) 3Vp-p
2. Operating Voltage 1...25Vp-p
3. a)Rated Current max.2mA
4. Capacitance at 120Hz 20 30%nF
5. a)Sound Output at 2KHz,10cm Min.75dB
6. Resonant Frequency 2 KHz
7. Operating Temperature -40...+85 C
8. Storage Temperature -40...+85 C
9. Weight 1.5g 25%
a)Value applying at rated voltage.(3Vp-p square wave,1/2duty)
Rev.
DrawnDate
Note
1.31.Recommended Circuit 1.32.Standard text Fixture
No reaction in space with in 400mm in all direction
the following are examples of externally driven circuits.
1) Unstable multi-vibrator using Tr.
2) Circuits using inverters or NAND gates.
1)
510 20k
20k 510
1k
1k
0.01 F
0.01 F
2)
1k
1k
Input
120k
1M
+V
+V
www.be-star.com [e-mail]
赵 峥
邱 俊
李红元
BPT1703H09-04 LF
BPT1703H09-04 LF
11/12/17
1.2 Electrical and Mechanical Characteristics
1. Description
1.1 The specification relates to the piezoelectric sounder intended to be used in alarm
sysytems. Please contact us before using any of the products in the applications not
described above.
博 士 達