SMT-0340-T-R

Alarms, Buzzers, And Sirens Overview

The SMT-0340-T-R is a surface-mount electromagnetic transducer manufactured by PUI Audio. It features a compact square footprint measuring 3 mm x 3 mm with a height of approximately 2 mm. The device operates at a nominal voltage of 3 V peak-to-peak and draws a maximum current of 90 mA. Its resonant frequency is optimized within the 3.5 kHz to 4.2 kHz range, delivering an acoustic output of 70 dB measured at a distance of 10 cm. The component utilizes gullwing lead termination for board mounting.

Alarms, Buzzers, And Sirens Feature Summary

• Ultra-compact 3 mm x 3 mm form factor designed for space-constrained circuit boards
• Optimized high-frequency response suitable for multi-tone audio applications
• Low power consumption profile compatible with battery-operated portable devices

Alarms, Buzzers, And Sirens Applications

• Wearable health monitoring devices
• Handheld diagnostic equipment
• Portable blood glucose monitors
• Infusion pumps
• Body temperature meters

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific suffix configuration against the manufacturer's latest datasheet to ensure compatibility with required operating voltages and acoustic performance targets. Confirm that the gullwing lead termination matches the target PCB land pattern dimensions. Ensure environmental ratings meet the operational requirements of the final assembly.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when minimal board real estate is available and high-frequency audible alerts are required. The 3V operation makes it suitable for low-voltage systems. Consider the 70 dB SPL output level relative to enclosure acoustics. Compare against the SMT-0440 series if slightly larger dimensions allow for alternative mounting configurations or different acoustic profiles.

Alarms, Buzzers, And Sirens Part Context

This part belongs to the SMT-0340 series of micro transducers from PUI Audio. The series represents a specialized line of ultra-small electromagnetic actuators engineered specifically for medical and consumer electronics where physical size is a critical constraint. It serves as a compact alternative to larger through-hole or standard SMD buzzers.

Alarms, Buzzers, And Sirens Replacement Considerations

The SMT-0440-T-R is a documented substitute offering similar functionality in a slightly larger 4 mm x 4 mm package. Verify mechanical fit and acoustic output differences before substitution.