Pin terminal DC type electromagnetic buzzer with oscillator circuit
12*6.5mm
Description:
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.
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.
Difference between active and passive:
An active buzzer has a built-in oscillating source, so it will make
sounds when electrified. But a passive buzzer does not have such
source, so it will not tweet if DC signals are used; instead, you
need to use square waves whose frequency is between 2K and 5K to
drive it. The active buzzer is often more expensive than the
passive one because of multiple built-in oscillating circuits.
Difference between piezo buzzer & magnetic buzzer:
A piezo buzzer generates sound because of the piezoelectric effect
from the piezoelectric ceramic which drives the metallic diaphragm
to vibrate.
A magnetic buzzer is based on the electromagnetic principle, the
metal diaphragm is pulled when input the power, and spring back
without power.
The piezo buzzer is driven by square waves, and the magnetic buzzer
needs 1/2 square waves to drive.
| Piezo buzzer | Magnetic buzzer |
| Start method | Piezoelectric effect | Electro-magnetic effect |
| Size | Big (10-50mm) | Small(6-25mm) |
| Resonant frequency | High(2-6KHz) | Low(1-3KHz) |
| Operating voltage | High(9-24V) | Low(1.5-12V) |
| Sound level | Louder(85-120dB) | Lower(70-95dB) |
| Current consumption | Low(5-20mA) | High(35-60mA) |
Specifications:
| Type | Unit | 12065Y01 | 12065Y03 | 12065Y05 | 12065Y09 | 12065Y12 | 12065Y24 |
| Rated voltage | V | 1.5 | 3 | 5 | 9 | 12 | 24 |
| Operating voltage | V | 1.2-2.5 | 2.5-5 | 4-8 | 8-12 | 10-15 | 15-28 |
| Rated current | mA | ≤20 | ≤30 | ≤30 | ≤30 | ≤30 | ≤45 |
| Sound output at 10cm | dB | ≥75 | ≥80 | ≥85 | ≥85 | ≥85 | ≥87 |
| Resonant frequency | Hz | | 2300±300 |
| Operating temperature | ℃ | | -20~+60 |
| Storage temperature | ℃ | | -30~+105 |
| Weight | g | | 2 |
Application:
Widely used in computers, printers, photocopiers, alarms,
electronic toys, automotive electronic devices, telephones, timers
and other electronic products for voice devices
Dimension: (mm)
Tolerance: ±0.5
Frequency response:
