AST1028MK-03Q

Overview

The AST1028MK-03Q is an externally driven magnetic buzzer manufactured by Mallory Sonalert Products Inc. It operates within a voltage range of 2 to 4 VAC peak-to-peak and draws a current of 100mA. The device produces a sound pressure level of 90dB at 3V measured from a distance of 10cm. Its operating frequency is 2.83kHz. The component features a compact surface-mount design with dimensions of 10mm x 10mm.

Feature Summary

• Externally driven electromagnetic transducer architecture
• Surface-mount package for automated assembly integration
• High acoustic output relative to physical footprint

Applications

• Industrial control panel audio signaling
• Medical equipment status alerts
• Consumer appliance notification systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct electrical characteristics and mounting configuration. Confirm that the external drive circuitry matches the required 2-4 VAC peak-to-peak input specifications. Check for RoHS compliance documentation if environmental regulations apply to the final product assembly.

Selection Notes

Select this component when a low-profile surface-mount solution is required for high-volume production. Ensure the host circuit can provide the necessary AC voltage swing and current capacity. Consider thermal management requirements during PCB layout, as continuous operation may generate heat within the enclosed space.

Part Context

This part belongs to the AST series of electromagnetic buzzers designed for surface-mount technology. It serves as a direct replacement for through-hole variants in modern miniaturized electronics where board space is constrained. The series emphasizes consistent acoustic performance across varying manufacturing batches.

Replacement Considerations

Direct substitutes include AST1028MK-03TRQ for tape-and-reel packaging variations. Verify pin compatibility and acoustic output levels before integrating alternative models from other manufacturers.