CPT-9019S-SMT-TR
Overview
The CPT-9019S-SMT-TR is a compact 9mm square piezoelectric transducer designed for surface-mount applications. This externally driven buzzer requires a peak-to-peak signal to produce a 4kHz single-tone output, reaching a sound pressure level of 65dB at 10cm.
Why Choose This Part
This transducer offers a wide operating voltage range up to 25Vp-p while maintaining a very low current consumption of 5mA at its rated 3V. Its small 9x9mm footprint and SMT package make it ideal for high-density PCB layouts where vertical space is limited.
Applications
Key Specifications
Getting Started
To drive this transducer, implement a square wave or PWM signal at 4kHz from a microcontroller GPIO or a dedicated timer circuit. Because it is a piezo element without internal driving circuitry, ensure the signal frequency matches the 4kHz resonant frequency for maximum SPL output.
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