Active Member
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[China]
Address: ROOM 2204, NO.98， TIANGAO ALLEY, SOUTH BUSINESS DISTRICT, YINZHOU, 315194, NINGBO, CHINA
Contact name:Roy Zhang
Ningbo Anyo Import & Export Co., Ltd. |
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AC type 2048Hz Φ12*5.4mm electronic magnetic buzzer for door bell
Description:
Buzzer is a signaling device that is not a loudspeaker. It can be
mechanical, electromechanical, or electronic (a piezo transducer).
When a lower frequency is required, an electromagnetic buzzer can
fill the need. These are very common in automotive chimes and
higher end clinical diagnostic devices. The electromagnetic
buzzer generally consists of a plastic housing with a metal
diaphragm that is flexed by an electro- magnet. The main benefit of
this design is the ability to obtain low frequencies in a small
package. Drawbacks include mechanical wear, electrical noise, lower
sound output, and large power consumption.
Application:
It is widely used in computers, printers, photocopiers, alarms, electronic toys, automotive electronic devices, telephones, timers and other electronic products for voice devices.
Specifications:
| Type | Unit | 12054W01 | 12054W03 | 12054W05 |
| Rated voltage | V | 1.5 | 3 | 5 |
| Operating voltage | V | 1-4 | 3-6 | 4-8 |
| Rated current | mA | ≤30 | ≤30 | ≤30 |
| Coil resistance | Ω | 8±2 | 16±4 | 42±6 |
| Sound output at 10cm | dB | ≥80 | ≥80 | ≥80 |
| Resonant frequency | Hz | 2048 | ||
| Operating temperature | ℃ | -20~+70 | ||
| Storage temperature | ℃ | -30~+80 | ||
| Weight | g | 2 | ||
Difference between active and passive:
An active buzzer has a built-in oscillating source, so it will make sounds when electrified. An active buzzer can be connected just like an LED, but as they are a little more robust, you won’t be needing a resistor to protect them.
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 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 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.
• 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:
