CMT-0503-75-SMT-TR

Alarms, Buzzers, And Sirens Overview

The CMT-0503-75-SMT-TR is a surface-mount magnetic audio transducer manufactured by Same Sky. It operates at a resonant frequency of 4 kHz with a sound pressure level of 75 dB when driven at 3 V. The device requires an external driver circuit and accepts a zero-peak signal voltage within the 2 to 4 V range. It draws a supply current of 100 mA and features solder pad termination for PCB mounting. The unit measures 5 mm x 3 mm and functions within an operating temperature range of -40°C to +85°C.

Alarms, Buzzers, And Sirens Feature Summary

• Externally driven magnetic transducer technology
• Surface mount solder pad termination
• Single tone operational mode

Alarms, Buzzers, And Sirens Applications

• Electronic alarm systems
• Audible status indicators
• Consumer electronic devices

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm exact acoustic and electrical characteristics, as variations exist within the series. Ensure the design supports external drive circuits, as this component lacks internal oscillators. Confirm package dimensions and thermal requirements align with the target PCB layout before finalizing procurement.

Alarms, Buzzers, And Sirens Selection Notes

Select this component for applications requiring a compact, low-profile audible alert solution. It is suitable for designs where space constraints necessitate a 5 mm footprint. Engineers must provide an appropriate external driving signal, as the device does not contain internal oscillator circuitry. Verify that the required 75 dB output meets the environmental noise requirements of the end application.

Alarms, Buzzers, And Sirens Part Context

This part belongs to the Same Sky CMT series of magnetic buzzers. These components are designed for surface-mount assembly, offering a low-profile alternative to through-hole options. The series provides various acoustic outputs and form factors to accommodate different enclosure sizes and volume requirements in portable electronics.

Alarms, Buzzers, And Sirens Replacement Considerations

CMT-0503-03-SMT-TR offers similar dimensions but provides 80 dB SPL. CMT-0503-75-SMT-TR is functionally equivalent to parts from former CUI Devices lines.