AST1427M-03TRQ

Overview

The AST1427M-03TRQ is an electromagnetic surface-mount buzzer manufactured by Mallory Sonalert Products Inc. It operates within a voltage range of 3 to 4.5V AC peak-to-peak. The device produces a sound pressure level of 89dB at a frequency of 2.731kHz. Its physical dimensions are 11mm x 14mm x 3mm. This component is designed for externally driven applications and utilizes magnetic technology.

Feature Summary

• Electromagnetic transducer technology
• Surface-mount package design
• Externally driven operation mode

Applications

• Electronic equipment audio signaling
• Consumer appliance alerts
• Industrial control panel indicators

Procurement Notes

Verify the specific suffix TRQ indicates tape-and-reel packaging when sourcing components. Confirm that the 3-4.5V rating refers to AC peak-to-peak voltage to ensure compatibility with the driving circuit. Check RoHS compliance status as required by project specifications. Ensure the external driver can supply sufficient current for the electromagnetic coil.

Selection Notes

Select this component for designs requiring low-voltage AC operation and compact surface-mount integration. The 89dB output provides high audibility in moderate noise environments. Consider the 11x14mm footprint during PCB layout planning. Verify that the external drive signal matches the specified peak-to-peak voltage range for optimal performance.

Part Context

This part belongs to the Mallory Sonalert family of audio transducers. It differs from piezoelectric buzzers by using electromagnetic principles. The model number identifies the specific acoustic output and electrical characteristics within the product line.

FAQ

What type of drive signal is required?

The AST1427M-03TRQ requires an externally driven AC signal with a peak-to-peak voltage between 3V and 4.5V.

Is this buzzer internally driven?

No, this component is designed for externally driven applications and does not contain internal oscillation circuits.