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Piezo Electric Buzzer Resonator Element 3-27 VDC 2.5 kHz

Overview
OBO Pro.2 piezo electronic buzzer. Operates on 3-27 volts DC, current consumption 9 mA at 9 VDC. Produces a 2.5 kHz tone at roughly 83 dB min at 30 cm with 9 VDC input. Produces roughly 90 dB at full operating voltage.
Part # 
329-050
Weight: 0.01 lbs.  
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Regular Price$1.85
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Part # 329-050
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Product Details

Piezo Electric Buzzer Resonator Element 3-27 VDC 2.5 kHz

OBO Pro.2 piezo electronic buzzer. Operates on 3-27 volts DC, current consumption 9 mA at 9 VDC. Can produce a 2.5 kHz tone at roughly 83 dB min at 30 cm with 9 VDC input. Produces roughly 90 dB at full operating voltage. This buzzer is great for many alarm-type projects, including security systems, microwave ovens, smoke alarms, warning buzzers, or miscellaneous detectors. 29.5 mm dia. x 9 mm H.

Note: See the attached spec sheet for external drive circuit recommendations. This method produces sound by driving the piezoelectric diaphragm with electric signals supplied from an external oscillating circuit such as a multivibrator. Piezoelectric buzzer can also work as a speaker. In this method, a mechanical oscillation Qm of the piezoelectric diaphragm is damped properly to provide a wider frequency band of the sound pressure. This unit can be used for sounds of home electric appliances, key-in sounds of OA equipment, alarm sounds of digital watches and the multiple sounds like those used in electronic games. Great for ringers, transmitters, receivers of telephone sets, card radios and speakers of crystal TV's. The spec sheet shows examples of circuits to use for specific applications. Factory buyout—limited availability!



Piezo Electric Buzzer Resonator Element 3-27 VDC 2.5 kHz
  • BrandFactory Buyouts
  • Part Number329-050
  • UPC844632088032
  • Product CategorySecurity Systems & Accessories
  • Unit of MeasureEA
  • Weight0.01 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Piezo Electric Buzzer Resonator Element 3-27 VDC 2.5 kHz

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Piezo Electric Buzzer Resonator Element 3-27 VDC 2.5 kHz

How do you connect buzzer

I have not been able to get buzzer to make any sound using a 9V battery and all possible combination of connections. The spec sheet seems to indicate that an external circuit is required.
Asked by: reller
Yes, an external circuit is required. You can see examples of various suitable circuits in the product's specifications, listed above under "Manuals/Resources," or by following this link:http://www.parts-express.com/pdf/329-050s.pdf
Answered by: RussR
Date published: 2014-03-10

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