CMT-1209-1290T

Alarms, Buzzers, And Sirens Overview

The CMT-1209-1290T is an externally driven magnetic audio transducer manufactured by Same Sky. It features a round design with a diameter of 12 mm and a height of 9 mm, utilizing through-hole PC pin termination for PCB mounting. The device operates at a rated voltage of 12 V peak-to-peak (Vo-p) and draws a current of 65 mA. It produces a sound pressure level of 90 dB at 12V measured at a distance of 10 cm. The operating frequency is specified at 2.048 kHz. This component is classified as a magnetic buzzer transducer suitable for audible alert applications.

Alarms, Buzzers, And Sirens Feature Summary

• Externally driven magnetic transducer technology
• Through-hole PC pin mounting style
• Round acoustic housing design

Alarms, Buzzers, And Sirens Applications

• Electronic equipment status indicators
• Audible alarm systems
• Control panel feedback devices

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific ordering suffix to confirm electrical ratings, as variations exist within the CMT series. Confirm that the application circuit supports the required 65 mA drive current at 12 V. Ensure the PCB layout accommodates the through-hole pin spacing and physical dimensions of the 12 mm diameter package. Cross-reference the datasheet for environmental specifications if used in harsh conditions.

Alarms, Buzzers, And Sirens Selection Notes

Select this model when a 12 V drive voltage and 2.048 kHz tone are required for audible alerts. The 90 dB output provides sufficient volume for general industrial or consumer electronics. Consider the through-hole form factor for robust mechanical attachment compared to surface-mount alternatives. Evaluate power supply capabilities to handle the 65 mA current draw during operation.

Alarms, Buzzers, And Sirens Part Context

This component belongs to the Same Sky CMT series of magnetic audio transducers. These devices are designed for external driving circuits rather than containing internal oscillators. The series offers various voltage and frequency options to suit different system requirements. Same Sky acquired CUI Devices, retaining product lines under the Same Sky brand while maintaining part number continuity.

Alarms, Buzzers, And Sirens Replacement Considerations

Direct substitutes include other 12 mm magnetic buzzers from Same Sky such as CMT-1209-390T or CMT-1209-590T, provided the voltage and frequency match. Verify pin compatibility and acoustic output levels before substitution.