Jiangsu Meidi Intelligent Technology Co., Ltd.
Jiangsu Meidi Intelligent Technology Co., Ltd.
Products

Thin SMD Piezoelectric Passive Buzzer For Smart Electronics

Company Overview

Jiangsu Meidi has more than thirteen years of experience in piezoelectric buzzer development and manufacturing, focusing on compact acoustic components for electronic applications. The company operates with professional R&D capabilities, production management systems, and quality inspection procedures to support customers from product concept evaluation to volume manufacturing.

For SMD piezoelectric passive buzzer projects, Meidi provides engineering assistance covering acoustic parameter selection, structural design, PCB integration evaluation, and customized product development. OEM and ODM services are available for customers requiring specific dimensions, resonance characteristics, electrical parameters, or application-based modifications.

Product Description

Compact Piezoelectric Structure for Low-Power Electronic Devices

SMD piezoelectric passive buzzers are surface-mount acoustic components designed for electronic devices requiring low power consumption, compact installation, and flexible sound control. Unlike active buzzer designs with integrated oscillation circuits, these components require an external drive signal from the host system to generate sound.

This external control method allows engineers to define frequency ranges, sound patterns, and output characteristics according to different application requirements. The design provides flexibility for electronic products where customized audio feedback or programmable alert signals are needed.

Piezo Ceramic Technology for Efficient Acoustic Output

The buzzer uses a piezoelectric ceramic element that converts electrical signals into mechanical vibration to produce sound. Due to the characteristics of ceramic transducers, these components can operate with relatively low current consumption while maintaining clear acoustic output across suitable frequency ranges.

Compared with magnetic structures, piezoelectric designs generally feature a lighter construction and different acoustic response characteristics. For applications requiring ceramic-based acoustic components, customers may also consider related Piezo Ceramic Buzzer Element solutions.

Surface-Mount Package for Space-Limited Applications

The thin and lightweight SMD package allows direct integration into compact PCB layouts. This structure is suitable for modern electronic products where available board space is limited and automated assembly processes are required.

Typical applications include:

  • Wearable electronic devices
  • Medical monitoring equipment
  • Precision instruments
  • Drones and portable devices
  • Communication equipment

In these applications, engineers can adjust the drive signal through the main control system to create different alert sounds, notifications, or operating feedback.

Engineering Support and Custom Development

Jiangsu Meidi supports customized SMD piezoelectric passive buzzer projects according to customer requirements, including package dimensions, resonance frequency, capacitance characteristics, terminal design, and acoustic performance.

During the development stage, engineers evaluate product specifications together with the customer's application conditions. Prototype samples and performance verification help confirm compatibility before moving into mass production.

For different electronic assembly requirements, Meidi also provides related acoustic products such as SMD Buzzer and customized piezoelectric buzzer solutions.

Application and Selection Considerations

When selecting an SMD piezoelectric passive buzzer, engineers usually evaluate:

  • Required operating voltage and drive waveform
  • Target sound frequency and output level
  • PCB installation space and package size
  • Power consumption requirements
  • Operating environment conditions

Proper specification matching helps ensure stable acoustic performance and reliable integration within the final electronic product.

Related Piezoelectric and Magnetic Buzzer Solutions

Jiangsu Meidi manufactures various acoustic components for different electronic applications. Customers can also explore related categories including Piezoelectric Buzzer, Magnetic Active Buzzer, and other customized buzzer products.

FAQ

Q: What is the typical power consumption of an SMD piezoelectric passive buzzer?

A: Piezoelectric ceramic structures generally require low operating current compared with many magnetic buzzer designs. The actual power consumption depends on drive voltage, frequency, and specific product specifications.

Q: Why does an SMD piezoelectric passive buzzer require an external drive signal?

A: Passive piezoelectric buzzers do not contain an internal oscillator. The host circuit provides the driving waveform, allowing engineers to control sound frequency, duration, and alert patterns.

Q: Can Meidi customize SMD piezoelectric passive buzzer specifications?

A: Yes. Meidi supports customization of dimensions, resonance frequency, electrical parameters, and acoustic characteristics according to customer application requirements.

Q: What industries commonly use SMD piezoelectric passive buzzers?

A: They are commonly used in wearable electronics, medical devices, precision instruments, drones, communication equipment, and other compact electronic products requiring low-power acoustic feedback.


The table below lists all standard specifications of products in this series. Customized solutions are available upon your request; please feel free to contact us for further customization requirements.

Model Product Image Rated Voltage (Vp-p) Operating Voltage (Vp-p) Sound Pressure Level @10cm (dB) Operating Current (mA) Capacitance (pF) Resonant Frequency (Hz) Operating Temperature (℃) Weight (g) Dimensions (mm)
MLT-1230 Smd Piezoelectric Passive Buzzer 3 1~25 ≥80 ≤5 14000±30% 4000±300 -30~+70 0.4 12×12×3.0
MLT-9018 Smd Piezoelectric Passive Buzzer 5 1~25 ≥70 ≤5 12000±30% 4000±300 -30~+70 0.4 9×9×1.8
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9×9×1.8mm SMD Piezoelectric Passive Buzzer

9×9×1.8mm SMD Piezoelectric Passive Buzzer

The MLT-9018 is a 5V 4000Hz SMD piezoelectric passive buzzer with a 9.0 × 9.0 × 1.8 mm footprint. A passive device, it needs an external AC drive, commonly a square wave or PWM near resonance, to produce sound. Built on ceramic piezoelectric technology rather than electromagnetic coils, 9×9×1.8mm SMD Piezoelectric Passive Buzzer draws ≤5 mA and produces no inductive kickback. The 1–25V operating range yields ≥70 dB at the 5V rating, with 12000 ± 30% pF capacitance. At 0.4 g in a black LCP housing, it withstands 255 °C reflow up to three passes, fitting standard supplier assembly lines. For bulk purchases in space-constrained designs, MEIDI's Applications Engineering department offers tailored driver circuit recommendations, making it an ideal choice.
12*12*3mm SMD Piezoelectric Passive Buzzer

12*12*3mm SMD Piezoelectric Passive Buzzer

MEIDI 12*12*3mm SMD Piezoelectric Passive Buzzer is a 3V SMD piezoelectric passive buzzer with a 12.0 × 12.0 × 3.0 mm footprint. Driven by an external PWM signal, it produces ≥80 dB at 4.0 kHz. Its broad 1–25 V operating range covers everything from logic-level signals to industrial bus voltages, so no driver redesign is needed across applications. With 14 nF capacitance and ≤5 mA current draw, it runs efficiently straight from an MCU GPIO pin. The extended -30 °C to +70 °C rating works for both commercial and light-industrial installations. Send an RFQ or request evaluation units now. Volume pricing and OEM frequency tuning are both available.
SMD Piezoelectric Passive Buzzer manufacturer with fast delivery and customization. Meidi Intelligent offers quality buzzers for bulk orders. Get a quote!
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