ZT120LASU2R

Overview

The ZT120LASU2R is a piezoelectric buzzer manufactured by Mallory Sonalert Products Inc. It operates at a nominal voltage of 12 VDC and produces an acoustic output level of approximately 85 dB at a distance of 10 cm. The device features a built-in oscillator circuit, enabling it to generate a continuous tone when powered. It utilizes a plastic housing with a sealed design suitable for various industrial applications. The unit is designed for through-hole mounting on printed circuit boards.

Feature Summary

• Integrated oscillator circuit for direct drive operation
• Sealed plastic housing for environmental protection
• Through-hole mounting configuration for PCB integration

Applications

• Industrial control panels
• Appliance signaling systems
• Security alarm devices

Procurement Notes

Verify the specific acoustic output requirements against the official datasheet specifications before procurement. Confirm that the operating voltage matches the system power supply exactly to prevent damage. Ensure the mounting hole dimensions align with the mechanical drawings provided in the manufacturer's documentation. Check for any RoHS compliance certifications required by your project standards.

Selection Notes

Select this component only if the application requires a simple, single-tone audible alert without complex modulation. Consider the physical size constraints of the enclosure to ensure the buzzer fits properly. Evaluate the ambient noise levels to determine if the specified sound pressure level is sufficient for clear audibility. Verify that the DC voltage supply is stable within the recommended operating range.

Part Context

This part belongs to the Mallory Sonalert line of piezoelectric buzzers. These components are widely used in electronics for providing audible feedback. The series is known for reliability and consistent performance in consumer and industrial electronics. The specific model indicates its voltage rating and acoustic characteristics relative to other variants in the product family.

Replacement Considerations

Consult the official Mallory Sonalert replacement guide for verified cross-reference part numbers. Ensure any substitute maintains the same voltage rating and acoustic output level. Verify mechanical compatibility including mounting hole spacing and overall dimensions. Confirm electrical interface compatibility to avoid circuit modification.