SMT-1227-T

Alarms, Buzzers, And Sirens Overview

The SMT-1227-T is an externally driven piezoelectric transducer manufactured by PUI Audio, Inc. It features a surface mount design with solder pad termination for automated assembly integration. The device operates within a voltage range of 3 to 25 Vp-p and has a rated voltage of 3 Vp-p. Key electrical specifications include a resonant frequency of 2.7 kHz, a sound pressure level of 67 dBA measured at 10 cm, and a current consumption of 5 mA. The physical dimensions are 3 mm in height, 12 mm in width, and 12 mm in length.

Alarms, Buzzers, And Sirens Feature Summary

• Surface mount construction utilizing solder pads for direct PCB attachment
• Externally driven piezoelectric transducer mechanism
• Single tone acoustic output capability

Alarms, Buzzers, And Sirens Applications

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

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific datasheet version for the SMT-1227-T to confirm exact operating voltage ranges and mechanical tolerances. Ensure that the printed circuit board layout accommodates the specified 12 mm x 12 mm footprint and 3 mm height constraints. Confirm compatibility with standard reflow soldering profiles suitable for piezoelectric components to maintain acoustic performance integrity during assembly.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a low-profile surface mount solution is required for audible signaling applications. The 67 dBA output level is suitable for general alert purposes where high-intensity sirens are unnecessary. Consider the 2.7 kHz resonant frequency for compatibility with driving circuits designed for this specific acoustic range. Verify that the 3 to 25 Vp-p operating range aligns with the system's available drive voltage.

Alarms, Buzzers, And Sirens Part Context

This part belongs to the broader category of piezoelectric buzzers and transducers offered by PUI Audio, Inc. It is distinct from internally driven buzzers as it requires an external signal source. The surface mount format differentiates it from through-hole or wire lead alternatives within the manufacturer's portfolio, targeting modern automated manufacturing processes.

Alarms, Buzzers, And Sirens Replacement Considerations

Direct substitutes must match the 12x12x3 mm form factor, 2.7 kHz frequency, and surface mount solder pad configuration. Verify that alternative components support the same 67 dBA sound pressure level and 3-25 Vp-p operating voltage range to ensure functional equivalence in existing designs.