AST0540MW-03Q

Overview

The AST0540MW-03Q is a piezoelectric buzzer from the Mallory Sonalert AST series, designed for board-mounted applications. It operates on a DC voltage of 3.6V and draws a current of 12mA. The device produces a continuous tone at a frequency of 2.7kHz with a sound pressure level of 85dB measured at a distance of 10cm. It features wire lead termination for direct circuit integration and functions within an operating temperature range of -20°C to +60°C.

Feature Summary

• Integrated internal driver circuitry eliminates the need for external oscillators or complex drive signals.
• Piezoelectric technology ensures reliable acoustic output with low power consumption.
• Board-mount design facilitates direct installation onto printed circuit boards via wire leads.

Applications

• Low-voltage electronic equipment status indication
• Portable battery-operated devices requiring minimal current draw
• Industrial control panels with 3.6V logic interfaces

Procurement Notes

Verify that the supply voltage matches the 3.6V rating exactly to prevent damage or insufficient sound output. Confirm that the PCB layout accommodates the specific wire lead spacing and mounting requirements. Ensure the application environment remains within the specified -20°C to +60°C operating temperature range for optimal performance and longevity.

Selection Notes

Select this component when a low-voltage, low-current audible indicator is required for board-level integration. It is suitable for designs where space is limited and external driving components must be minimized. Compare against other AST series variants if different voltage ratings or sound pressure levels are needed for the specific application constraints.

Part Context

This part belongs to the AST series of piezoelectric buzzers manufactured by Mallory Sonalert Products Inc. The series is characterized by compact dimensions and integrated drivers, making it a standard choice for modern electronic assemblies. Mallory Sonalert is recognized for producing industrial-grade audio indicators used across medical, transportation, and consumer sectors.

Replacement Considerations

Consult official Mallory Sonalert documentation for verified cross-reference part numbers. Substitutions should match the 3.6V DC input, 2.7kHz frequency, and board-mount form factor to ensure functional compatibility without redesigning the host circuit.