Description
The TMB-12A03 active buzzer is an electronic signaling component designed for acoustic alerts in low-voltage DC circuits. Thanks to its built-in tone generator, it requires DC power within the specified range to operate and is suitable for simple sound signaling of statuses, alarms, or confirmations in electronic devices.
Technical Specifications
Type: TMB-12A03
Design: Active buzzer
Operating voltage: 2.5-4V DC
Rated voltage: 3V DC
Maximum current: 35 mA
Frequency: 2300 ± 300 Hz
Sound output: 85 dB at 10 cm distance
Operating temperature: -20 to 70 °C
Dimensions: 12 x 9.5 mm
Features and Characteristics
Active design with an integrated sound generator.
Emits a tone when DC power is applied within the specified range.
Compact cylindrical housing suitable for integration into electronic devices.
Through-hole design for PCB mounting.
Designed for low-voltage DC circuits.
Ideal For
Acoustic signaling in electronic projects.
Status indication in control and command circuits.
Sound alerts in measuring, testing, and development equipment.
Educational and prototyping applications with low-voltage power supplies.
Package Contents
1x TMB-12A03 active buzzer
Why Choose This Product
Features an active design, so no external tone generator is required for basic sound signaling.
The specified power range matches low-voltage DC applications.
Small dimensions make it easy to integrate into compact electronic assemblies.
Parameters for frequency, current, volume, and operating temperature are specified exactly for the TMB-12A03 model.
Installation and Operating Instructions
When connecting, observe the pin polarity marked on the component or in the wiring documentation.
Power only with DC voltage within the specified range.
Mount the component so that the pins are not subjected to mechanical stress.
Perform soldering and assembly in accordance with standard practices for handling electronic components.
Safety Warnings
Do not connect to mains voltage.
Exceeding the permitted supply voltage or incorrect polarity may damage the component.
Prevent short circuits of the pins and overheating during soldering.
Installation into electrical equipment should be performed by a person knowledgeable in wiring electronic components.
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