SMT-0727-S-R

Alarms, Buzzers, And Sirens Overview

The SMT-0727-S-R is a surface-mount electromagnetic transducer manufactured by PUI Audio, Inc. It operates within a voltage range of 2 to 5V and features a resonant frequency of 2.7kHz. The device produces a sound pressure level of 85dB at 3.6V measured at 10cm. It is designed for single-tone operation with an externally driven mechanism. Key electrical specifications include a peak-to-peak voltage requirement of 3.6Vp-p and a current draw of 120mA. The component utilizes side-firing technology and is constructed using electromechanical magnetic principles.

Alarms, Buzzers, And Sirens Feature Summary

• Surface mount design for automated PCB assembly
• Electromagnetic transducer technology for reliable signal generation
• Side-firing acoustic output configuration
• Externally driven single-tone operation without built-in generator

Alarms, Buzzers, And Sirens Applications

• Electronic alarm systems requiring audible alerts
• Consumer electronics indicating status or errors
• Industrial control panels for operator feedback
• Medical devices signaling operational states

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific ordering suffix matches the required acoustic and electrical characteristics. Confirm that the surface mount footprint aligns with your PCB layout constraints. Ensure the driving circuit can supply the necessary 120mA current at the specified voltage range. Check for RoHS compliance if required by your manufacturing standards. Validate the side-firing orientation against enclosure design requirements.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a low-profile surface mount buzzer is required for space-constrained designs. Consider the 2.7kHz resonant frequency for applications needing a distinct audible tone. Evaluate the 85dB SPL capability against ambient noise levels in the target environment. Ensure the external driver circuitry can handle the 120mA current load efficiently.

Alarms, Buzzers, And Sirens Part Context

This part belongs to the SMT-07 series of surface mount transducers from PUI Audio. These components are engineered for high-volume manufacturing processes due to their standardized footprint and robust construction. The series offers various frequencies and sound pressure levels to suit different acoustic requirements across diverse electronic product categories.

Alarms, Buzzers, And Sirens Replacement Considerations

Direct substitutes may include other surface mount electromagnetic buzzers with similar 2.7kHz resonance and 85dB SPL ratings. Verify mechanical dimensions and pinout compatibility before substitution. Alternative parts must support the same 2-5V operating voltage range and 120mA current draw.