CMT-1203-SMT-TR
Overview
The CMT-1203-SMT-TR is a surface-mount piezo buzzer transducer designed for audio feedback in compact electronic assemblies. This externally driven component features a side-facing sound port and a low 3mm profile, making it suitable for designs with height constraints. It operates over a wide temperature range from -40 to +120 degrees Celsius, ensuring reliability in demanding thermal environments.
Why Choose This Part
This transducer offers a wide operating voltage range up to 25V and extremely low current consumption typical of piezo technology. Its SMT package with Sn plating is compatible with high-temperature lead-free reflow processes, and the 120C maximum operating temperature exceeds standard consumer-grade specifications.
Applications
Getting Started
To drive this transducer, provide a square wave at its resonant frequency using a microcontroller PWM peripheral or a dedicated oscillator circuit. Ensure the driving circuit can handle the peak-to-peak voltage required for the desired sound pressure level, and consider a flyback diode if using a transistor-based drive stage.
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