CMT-1421-87-SMT-TR

Alarms, Buzzers, And Sirens Overview

The CMT-1421-87-SMT-TR is a surface-mount magnetic audio transducer buzzer manufactured by Same Sky. It features an electromagnetic design with dimensions of 14 mm x 14 mm x 5.5 mm. The component operates at a rated voltage of 3 V and produces a sound pressure level of 87 dB. Its resonant frequency is specified at 2.7 kHz, making it suitable for audible alert applications requiring compact PCB integration.

Alarms, Buzzers, And Sirens Feature Summary

• Electromagnetic transducer technology for reliable acoustic output
• Surface-mount termination for automated PCB assembly
• Compact rectangular form factor designed for space-constrained enclosures

Alarms, Buzzers, And Sirens Applications

• Consumer electronics status indicators
• Industrial equipment alarm systems
• Home appliance auditory feedback modules

Alarms, Buzzers, And Sirens Procurement Notes

Verify current availability as the part is listed as obsolete. Confirm if the manufacturer recommends specific substitute models for new designs. Ensure sourcing channels provide genuine components to avoid counterfeit risks associated with discontinued parts. Check RoHS compliance documentation before final procurement decisions.

Alarms, Buzzers, And Sirens Selection Notes

Consider the 87 dB sound pressure level and 2.7 kHz frequency when designing acoustic chambers. Evaluate the 3 V operating voltage against system power rails. Assess the 14x14 mm footprint against available PCB real estate. Review thermal management requirements despite low power consumption typical of magnetic buzzers.

Alarms, Buzzers, And Sirens Part Context

This component belongs to the CMT series of surface-mount buzzers from Same Sky. The series offers various sizes and sound levels for different application needs. Magnetic transducers in this line provide consistent performance across temperature ranges. The SMT variant facilitates high-volume manufacturing processes.

Alarms, Buzzers, And Sirens Replacement Considerations

MFR Recommended substitutes are available for this obsolete part number. Verify pinout compatibility and acoustic performance equivalence before substitution. Consult official manufacturer documentation for approved replacement cross-references.