The MALLORY SONALERT PT-1540PQ is an excellent choice for applications requiring a compact audio piezo device. With a voltage peak-to-peak of 25V and a current of 1.5mA, this part offers reliable performance. It produces a sound pressure level of 85dBA, making it suitable for environments that require a moderate level of sound. Operating at a frequency range of 3500Hz to 4500Hz, this part emits a clear and distinct sound. With its pin-through-hole design, it can be easily mounted to PCBs or other electronic assemblies.