SMT-0827-S-3-R

Alarms, Buzzers, And Sirens Overview

The PUI Audio SMT-0827-S-3-R is a surface-mount electromagnetic transducer designed for audible signaling. It operates at a nominal voltage of 3.6 V with a current draw of 90 mA. The device features a self-resonant frequency of 2.7 kHz and produces an acoustic output of 85 dBA at 10 cm. Its compact square footprint measures 8.5 mm by 8.5 mm with a seated height of approximately 5.5 mm. Termination is achieved via solder pads suitable for automated assembly processes.

Alarms, Buzzers, And Sirens Feature Summary

• Electromagnetic transduction mechanism for reliable audible alerts
• Surface-mount package optimized for automated PCB assembly
• Compact square form factor suitable for space-constrained designs

Alarms, Buzzers, And Sirens Applications

• Electronic alarm systems
• Consumer appliance status indicators
• Portable device audio signaling

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific suffix against official PUI Audio documentation to confirm electrical characteristics, as variations exist within the series. Ensure the selected variant matches the required operating voltage and acoustic output specifications for the target application environment.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a low-profile, surface-mount solution is required for audible feedback. Consider the 85 dBA output level relative to enclosure acoustics. Verify thermal limits and mounting compatibility with the final product design constraints.

Alarms, Buzzers, And Sirens Part Context

This part belongs to the SMT-08 series of surface-mount buzzers from PUI Audio. The series offers various voltage and frequency options in a standardized 8.5x8.5 mm footprint, allowing designers to maintain consistent board layouts while adjusting acoustic performance parameters.

Alarms, Buzzers, And Sirens Replacement Considerations

Direct substitutes include the SMT-0827-TW-3V-R and SMT-0827-SW-3V-R, which share similar dimensions but may differ in impedance or drive requirements. Cross-reference datasheets to ensure functional equivalence before substitution.