AST1240MLTRQ

Overview

The AST1240MLTRQ is a surface-mount piezoelectric transducer from the Mallory Sonalert AST series. It operates at a nominal frequency of 4 kHz with a sound pressure level of 75 dB. The device is rated for 3 VDC and draws 5 mA current. Its compact dimensions are 12 mm x 12 mm x 3 mm, utilizing solder pad termination for SMD/SMT installation.

Feature Summary

• External drive piezoelectric technology
• Surface mount package design
• Low voltage operation capability

Applications

• Board-mounted audio indicators
• Compact electronic alerting systems
• Low power consumer devices

Procurement Notes

Verify the specific suffix 'TRQ' against official Mallory Sonalert documentation to confirm tape and reel packaging specifications. Ensure the operating voltage matches the 3 VDC rating in the target circuit design. Confirm RoHS compliance status through the manufacturer's latest datasheet before integration.

Selection Notes

Select this component for applications requiring low profile surface mount audio signaling. The 3 VDC rating suits battery-powered or low-voltage logic circuits. Compare the 75 dB output against ambient noise requirements. Consider the 12x12 mm footprint for PCB space constraints relative to other AST series variants.

Part Context

This part belongs to the AST series of external drive piezoelectric transducers by Mallory Sonalert Products Inc. The series provides various form factors for board-level audio indication. The AST1240MLTRQ represents a specific surface-mount variant within this family, distinguished by its low voltage and small physical dimensions.

Replacement Considerations

AST1240MLQ is a bulk-packaged equivalent with identical electrical parameters. Verify pin compatibility and mechanical tolerance when substituting between tape/reel and bulk formats.