Product Details:
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| Other Name: | Passive Buzzer | Rated Voltage: | 3V; 5V; 12V |
|---|---|---|---|
| Resonant Frequency: | 4000Hz | Rated Current: | Max.40mA |
| Sound Pressure Lever: | Min.85dB/10cm | Weight: | 2g |
| Highlight: | electromagnetic buzzer,smd magnetic buzzer |
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Φ12*9mm AC type passive magnetic buzzer with resonant frequency 4000Hz
Description:
A buzzer can be either AC or DC operated and can be mounted anywhere according to the need and purpose. When used as an alarm device, the buzzer is usually mounted on a control panel. The latest technological developments have led to using buzzers in sirens and signals for a wide range of applications.
A passive buzzer emits a tone when a voltage is applied across it. It also requires a specific signal to generate a variety of tones.
Application:
A buzzer is used in the domestic, official and industrial fields and it has almost entirely replaced the electro-mechanical bell. In houses and offices, the buzzer is used to catch the attention of people. In the industrial arena, it is mostly used as an alarm device.
Alarm devices
Timers
Confirmation of user input (ex: mouse click or keystroke)
Electronic metronomes
Annunciator panels
Game shows
Sporting events
Household appliances
Specifications:
| Type | Unit | 1209WT03-D | 1209WT05-D | 1209WT12-D |
| Rated voltage | V | 3 | 5 | 12 |
| Operating voltage | V | 1-4 | 3-7 | 9-15 |
| Rated current | mA | ≤40 | ≤40 | ≤40 |
| Coil resistance | Ω | 16±3 | 42±5 | 140±14 |
| Sound output at 10cm | dB | ≥85 | ≥85 | ≥85 |
| Resonant frequency | Hz | 4000 | ||
| Operating temperature | ℃ | -20~+70 | ||
| Storage temperature | ℃ | -30~+80 | ||
| Weight | g | 2 | ||
Precautions for use:
• Do not apply DC bias to the buzzer; otherwise insulation resistance may become low and affect the performance.
• Do not supply any voltage higher than applicable to the buzzer.
• Do not use the buzzer outdoors. It is designed for indoor use. If the buzzer has to be used outdoors, provide it with waterproofing measures; it will not operate normally if subjected to moisture.
• Do not wash the buzzer with solvent or allow gas to enter it while washing; any solvent that enters it may stay inside a long time and damage it.
• Do not apply any mechanical force to the buzzer; otherwise the case may deform and result in improper operation.
• Do not place any shielding material or the like just in front of the sound release hole of the buzzer; otherwise the sound pressure may vary and result in unstable buzzer operation. Make sure that the buzzer is not affected by a standing wave or the like.
• Be sure to solder the buzzer terminal at 350℃ max.(80W max.)(soldering iron trip) within 5 seconds using a solder containing silver.
• Avoid using the buzzer for a long time where any corrosive gas (H2S, etc.) exists; otherwise the parts or sound generator may corroded and result in improper operation.
• Be careful not to drop the buzzer.
Dimension: (mm)
Tolerance: ±0.5
Frequency response:
Contact Person: Mr. Roy Zhang
Tel: 86 574 55878090
Fax: 86-574-55878097
