SMT-1220-TW-R

Alarms, Buzzers, And Sirens Overview

The SMT-1220-TW-R is an electromagnetic transducer manufactured by PUI Audio, designed for surface mount board installation. It features a square shape with gullwing lead end types and operates within a temperature range of -40°C to +85°C. The device has dimensions of 12 mm length, 12 mm width, and 9.00 mm height. Key electrical parameters include a resonant frequency of 2 kHz, an impedance of 47 Ω, and a sound pressure level of 80 dBA. It requires a drive voltage between 2 V and 5 V with a current rating of 35 mA.

Alarms, Buzzers, And Sirens Feature Summary

• Surface mount electromagnetic transducer design
• Gullwing lead termination for automated assembly
• High sound pressure level output
• Wide operating temperature range

Alarms, Buzzers, And Sirens Applications

• Electronic buzzer circuits
• Sound indication systems
• Portable electronic devices
• Industrial control panels

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific datasheet version from PUI Audio or authorized distributors to confirm RoHS compliance status and humidity sensitivity classification. Ensure the ordering suffix matches the required packaging format, such as cut tape or reel, as indicated in official product listings. Cross-reference the impedance and SPL values against the latest technical documentation to guarantee compatibility with target circuit designs before finalizing procurement orders.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a compact, surface-mountable acoustic indicator is required. The 12x12 mm footprint suits space-constrained PCB layouts. Consider the 47 Ω impedance and 35 mA current draw for driver circuit sizing. The 80 dBA SPL provides clear audible feedback. Verify that the 2 kHz resonant frequency aligns with the desired acoustic tone for the specific application environment.

Alarms, Buzzers, And Sirens Part Context

This part belongs to the SMT series of electromagnetic transducers from PUI Audio. It is categorized under speakers and transducers, specifically functioning as a buzzer. The series offers various sizes and electrical characteristics, with this model representing a mid-range option in terms of physical dimensions and acoustic output suitable for general-purpose electronic signaling.

Alarms, Buzzers, And Sirens Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult PUI Audio directly for cross-reference recommendations.