AST1109MLQ

Overview

The AST1109MLQ is a piezoelectric buzzer manufactured by Mallory Sonalert Products Inc. It operates at a nominal voltage of 5V and produces a single-tone signal with a frequency of 4.1 kHz. The device delivers an acoustic output level of 73 dB. Its physical dimensions are 11 mm in length, 9 mm in width, and it utilizes surface-mount technology (SMD) for board mounting.

Feature Summary

• Piezoelectric transducer technology
• Single-tone peak-peak signal generation
• Surface-mount package design

Applications

• Board mount audio indicators
• Embedded system alerts
• Consumer electronics signaling

Procurement Notes

Verify the specific suffix and packaging configuration against the manufacturer's current datasheet to ensure compatibility with automated pick-and-place equipment. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement to prevent handling damage during assembly.

Selection Notes

Select this component when a low-profile, surface-mount audible indicator is required for space-constrained designs. Ensure the driving circuit can supply the necessary current for the 5V nominal operation. Verify that the 4.1 kHz frequency meets the auditory detection requirements of the target application environment.

Part Context

This part belongs to the Mallory Sonalert product line, which specializes in audible signal devices including buzzers, sirens, and speakers. The company provides solutions for industrial, medical, and consumer markets, focusing on reliable audio alerting components.

Replacement Considerations

Consult official Mallory Sonalert documentation for verified substitute part numbers. Do not assume cross-compatibility with generic SMD buzzers without verifying electrical parameters and mechanical footprint alignment.