Introduction of Magnetic
A magnetic buzzer is driven by 1/2 square waves (V o-p).
Operating Voltage: For normal operating. But it is not
guaranteed to make the minimum SPL under the rated voltage.
Consumption Current: The current is stably consumed under
the regular operation. However, it normally takes three times of current
at the moment of starting to work.
Direct Current Resistance: The direct current resistance
is measured by ammeter directly.
Sound Output: The sound output is measured by decibel
meter. Applying rated voltage and 1/2 square waves, and the distance of
Rated Frequency: A buzzer can make sound on any frequencies,
but we suggest that the highest and the most stable SPL comes from the
Operating Temp. : Keep working well between -30℃ and
How to choose:
AX series with built drive circuit will be the best choice when we cannot
provide frequency signal to a buzzer, it only needs direct current.
Dimension: Dimension affects frequency, small size result
in high frequency.
Voltage: Depend on V o-p (1/2 square waves)
Fixed methods: From the highest cost to the lowest- DIP,
wires/ connector, SMD.
Soldering methods: AS series is soldered by hand, the
frequency is lower because of the holes on the bottom.On the other hand,
we suggest AC series for the reflow soldering, the reliability is better.
to choose a buzzer