Product Overview
The MSPT35A16W100V12 12V 90dB Passive Piezo Buzzer is designed for home applications, household appliances, alarm devices, reminder systems, smart home products, electronic control panels, and compact acoustic notification equipment.
With a rated voltage of 12Vp-p, operating voltage range of 3–30Vp-p, resonant frequency of 1600±500Hz, and minimum sound output of 90dB at 10cm, this passive piezo buzzer provides clear audible indication for low-power electronic products.
As a passive buzzer, it requires an external driving signal to generate sound. This allows engineers to control tone frequency, pulse pattern, and alert rhythm according to the final circuit design.
Key Features
12Vp-p rated voltage supports common buzzer drive circuits used in household and electronic products.
3–30Vp-p operating voltage range provides flexible circuit design for different sound output requirements.
Minimum 90dB sound output at 10cm delivers clear acoustic notification for home appliances and alarm devices.
1600±500Hz resonant frequency produces a recognizable alert tone for warning, reminder, and status indication.
Maximum 9mA current consumption helps support low-power electronic product designs.
PPO housing material and 5g lightweight structure make it suitable for compact product assembly.
Technical Specifications
| Parameter | Specification |
| Type | MSPT35A16W100V12 |
| Dimension | 34.3×9.0mm |
| Minimum Sound Output at 10cm | 90dB |
| Rated Voltage | 12Vp-p |
| Operating Voltage | 3–30Vp-p |
| Resonant Frequency | 1600±500Hz |
| Maximum Current Consumption | 9mA |
| Capacitance at 1,000Hz | 60000±30%pF |
| Operating Temperature | -30℃ to +80℃ |
| Storage Temperature | -30℃ to +80℃ |
| Housing Material | PPO |
| Weight | 5g |
Applications
This 12V passive piezo buzzer is suitable for home appliances, kitchen equipment, washing machines, timers, security panels, smart home devices, alarm systems, access control devices, electronic instruments, control boards, and reminder products.
It can also be used in OEM and ODM projects where a low-current acoustic indicator with 90dB sound output, wide voltage compatibility, and compact housing is required.
Working Principle
A passive piezo buzzer uses a piezoelectric ceramic element to produce sound when driven by an external alternating signal. The ceramic element vibrates at the applied frequency and generates audible sound through the buzzer housing.
Because this buzzer does not include a built-in oscillator, the sound frequency and pattern are controlled by the external circuit. This provides flexibility for different reminder tones, alarm patterns, and electronic notification designs.
Design and Integration Notes
For best acoustic performance, drive the buzzer near its resonant frequency of 1600±500Hz and keep the voltage within the specified operating range of 3–30Vp-p.
The final sound output can be affected by drive waveform, voltage, duty cycle, mounting position, product enclosure, sound hole design, and surrounding acoustic conditions.
Before mass production, confirm the required sound pressure level, operating voltage, drive signal, current limit, temperature range, housing space, and installation method in the final product.
Why Choose This 12V Passive Piezo Buzzer
The MSPT35A16W100V12 combines 12Vp-p rated voltage, 90dB minimum sound output, 9mA maximum current consumption, PPO housing, and 3–30Vp-p operating voltage range. It is a practical sound component for home application and compact electronic alarm products.
Its passive design gives engineers more control over sound frequency and tone pattern, making it suitable for customized reminder sounds, warning signals, and status alerts in household and smart electronic devices.
FAQ
What is this 12V passive piezo buzzer used for?
It is used for home appliances, smart home devices, alarm panels, timers, electronic instruments, control boards, reminder systems, and other products that need audible notification.
How loud is the MSPT35A16W100V12 buzzer?
The specified minimum sound output is 90dB at 10cm, making it suitable for clear audible alerts in household and electronic devices.
How is a passive buzzer different from an active buzzer?
A passive buzzer requires an external drive signal to produce sound, while an active buzzer has a built-in oscillator and can sound when DC voltage is applied. Passive buzzers allow more control over tone and rhythm.
How should I drive this passive piezo buzzer?
Drive it with an external alternating or PWM signal near its resonant frequency of 1600±500Hz, and keep the driving voltage within the 3–30Vp-p operating range.
What affects the sound output of this buzzer?
Sound output can be affected by drive voltage, frequency, waveform, duty cycle, mounting method, sound outlet design, product enclosure, and the distance from the listener.
Can this buzzer be used in home appliances?
Yes. This buzzer is designed for home application and can be used in household appliances, smart devices, timers, alarms, and electronic reminder systems.
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