Product Description
The TMB12A05 Buzzer is engineered for high-pitched, clear audible notification. It utilizes electromagnetic technology, where an internal coil drives a metal diaphragm to generate sound. Because it is an "Active" type, it does not require a complex square-wave signal from a microcontroller to work; simply connecting it to a 5V power source is enough to trigger a constant beep. The module is housed in a durable, miniature casing that fits easily on PCBs and breadboards, featuring a protective label on the sound hole that should be removed after soldering for maximum volume.
Key Features
Built-in Oscillator: Generates its own 2400Hz signal, requiring only a simple High/Low digital signal to turn on and off.
High Sound Pressure: Delivers over 85dB, making it loud enough to be heard clearly in noisy indoor environments.
Low Power Requirement: Draws only 25mA, which is safe to power directly from a digital pin on most microcontrollers like Arduino.
Reliable Construction: Encapsulated in heat-resistant PBT plastic to withstand wave soldering temperatures.
Compact Footprint: The 12mm "Goli" size is small enough to fit into handheld devices and compact project boxes.
