PT-723B-76Q

Overview

The PT-723B-76Q is an externally driven piezoelectric transducer manufactured by Mallory Sonalert Products Inc. It operates within a voltage range of 5 to 30 Vp-p and draws 5 mA at 5 V. The device produces a dual-tone sound with a resonant frequency of 2600 ± 500 Hz. It achieves a sound pressure level of 90 dBA at 5 V measured at 10 cm. The unit features custom wire leads for connection.

Feature Summary

• Externally driven piezoelectric design
• Dual-tone audio output capability
• Compact form factor with integrated wire leads

Applications

• Industrial alarm systems
• Audio alert devices
• Buzzer applications requiring external drive signals

Procurement Notes

Verify the specific datasheet version from Mallory Sonalert or authorized distributors to confirm exact electrical tolerances and mechanical dimensions. Ensure the external drive circuitry matches the 5-30 Vp-p operating range and 2600 Hz frequency specification. Confirm lead length and termination requirements for your assembly process.

Selection Notes

Select this component when a high-intensity dual-tone signal is required in a compact package. It is suitable for applications needing an externally driven piezo element rather than a self-contained oscillator. Evaluate the 90 dBA output against ambient noise levels to ensure audibility.

Part Context

This part belongs to the Mallory Sonalert line of audio indicators and alarms. It is designed as a transducer that requires an external driver circuit to generate the acoustic signal, distinguishing it from self-exciting buzzers.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.