AST0927MW-3.6Q

Overview

The AST0927MW-3.6Q is a surface-mount externally driven magnetic buzzer manufactured by Mallory Sonalert Products Inc. It operates within an oscillation frequency range of 2 to 5 Vp-p, with a rated voltage of 3.6 Vp-p. The device draws a maximum current consumption of 90 mA and produces a sound pressure level of 85 dB at the rated voltage measured at a distance of 10 cm. The operating frequency is specified as 2730 Hz. This component utilizes surface mount solder pads for PCB integration.

Feature Summary

• Externally driven magnetic transducer design
• Surface mount solder pad termination
• High acoustic output relative to size

Applications

• Portable electronic device alarms
• Consumer electronics audio indicators
• Industrial control panel alerts

Procurement Notes

Verify the specific suffix and revision code against the manufacturer's latest datasheet to ensure compatibility with your circuit design. Confirm that the surface mount footprint matches your PCB layout exactly. Check for RoHS compliance status if required by your manufacturing standards. Ensure the driving circuit can supply the peak current requirements without exceeding the rated voltage limits.

Selection Notes

Select this component when a compact, high-volume surface mount solution is required for audible signaling. The magnetic driver type offers higher efficiency compared to piezoelectric alternatives in certain form factors. Consider the 90 mA current draw when designing power management circuits. The 3.6 Vp-p rating suits low-voltage battery-operated systems effectively.

Part Context

This part belongs to the Mallory Sonalert family of audio indicators and buzzers. The company specializes in both piezoelectric and magnetic transducers for industrial and consumer applications. The AST series represents their surface-mount offerings designed for automated assembly processes in modern electronics manufacturing.

Replacement Considerations

Direct substitutes must match the 3.6 Vp-p rated voltage, 2730 Hz frequency, and surface mount package dimensions. Verify that alternative components provide comparable 85 dB acoustic performance at the same measurement distance.