AT-1127-ST-2-R

Overview

The PUI Audio AT-1127-ST-2-R is a magnetic buzzer with a 9mm diameter and 3VDC rated voltage. It features through-hole mounting and solder pin termination. The device produces a continuous tone at a resonant frequency of 2.7 kHz with a sound pressure level of 85 dBA. It operates within a temperature range of -20°C to +70°C and has a maximum current draw of 15 mA.

Feature Summary

• Generates audible alerts using electromagnetic vibration
• Designed for direct through-hole board integration
• Provides consistent acoustic output at rated voltage

Applications

• Electronic equipment status indicators
• Appliance control panel feedback
• Industrial machine warning signals

Procurement Notes

Verify the specific suffix codes against official manufacturer documentation to ensure correct voltage and acoustic specifications. Confirm package type and lead times directly with authorized distributors, as these details are subject to change and require real-time validation from the supplier.

Selection Notes

Select this component when a compact 9mm form factor is required for space-constrained designs. Ensure the driving circuit can supply the necessary current without exceeding thermal limits. Verify that the 3V operating voltage aligns with the system power rails and that the 2.7kHz frequency is suitable for the intended alert application.

Part Context

This part belongs to the AT series of magnetic buzzers from PUI Audio. These components are engineered for reliable audio signaling in consumer and industrial electronics. The series offers various sizes and voltages to accommodate different design requirements while maintaining consistent performance standards across the product line.

Replacement Considerations

Check for exact dimensional matches and electrical compatibility. Verify that any substitute maintains the same mounting style and terminal configuration to ensure proper PCB integration without mechanical modifications.