AST0827MW-03TRQ

Overview

The AST0827MW-03TRQ is a surface-mount magnetic buzzer manufactured by Mallory Sonalert Products Inc. It operates on a DC input voltage range of 2 to 4V and draws a supply current of 80mA. The device produces a single-tone output at a frequency of 2.731kHz with a sound pressure level of 85dB measured at 3V and 10cm distance. Its compact physical dimensions are 8.5mm x 8.5mm, designed for solder pad termination.

Feature Summary

• Externally driven magnetic transducer technology
• Surface mount package configuration for automated assembly
• Single-tone continuous operation mode

Applications

• Compact electronic equipment audio signaling
• Portable device status indication
• Low-voltage circuit alerts

Procurement Notes

Verify the specific suffix TRQ indicates tape and reel packaging when ordering. Confirm that the 80mA current draw aligns with the target power supply capabilities. Ensure the 2-4V operating range matches the system logic levels. Check for RoHS compliance documentation if required by project specifications.

Selection Notes

Select this component for applications requiring a low-profile, high-intensity audible alert in space-constrained designs. The magnetic type offers consistent performance across the specified voltage range. Consider the external drive requirement compared to internally driven piezo alternatives.

Part Context

This part belongs to the AST series of surface-mount buzzers from Mallory Sonalert. It utilizes magnetic transduction rather than piezoelectric elements. The product is designed for integration into modern PCB layouts where height restrictions are critical.

Replacement Considerations

Direct substitutes must match the 8.5x8.5mm footprint and 80mA current consumption. Verify equivalent SPL ratings at similar test distances.