CMI-1275-05TH

Overview

The CMI-1275-05TH is a magnetic audio indicator buzzer manufactured by Same Sky. It operates at a rated voltage of 5 VDC with a current draw of 110 mA. The device produces an 85 dB sound pressure level at 10 cm distance and emits a tone frequency of 2.7 kHz. It features through-hole mounting via PC pins and has physical dimensions of 12 mm in diameter by 7.5 mm in depth.

Feature Summary

• Internally driven electromagnetic design for simplified circuit integration
• Through-hole PC pin termination for standard PCB assembly
• Compact cylindrical form factor suitable for space-constrained enclosures

Applications

• General purpose electronic equipment status indication
• Consumer appliance audible alerts
• Industrial control panel signaling

Procurement Notes

Verify the specific suffix designation to ensure compatibility with required drive circuits and acoustic specifications. Confirm that the through-hole footprint matches the target PCB layout constraints. Check RoHS compliance documentation for regulatory adherence in restricted material zones. Ensure operating temperature ranges align with the intended environmental conditions of the final assembly.

Selection Notes

Select this component when a low-profile, internally driven buzzer is required for 5V systems. The 85 dB output provides clear audibility for general notifications. Consider the 110 mA current consumption against available power supply capabilities. The 2.7 kHz frequency offers a distinct tonal characteristic compared to higher-pitched alternatives.

Part Context

This part belongs to the CMI series of magnetic buzzers from Same Sky, formerly CUI Devices. The series includes various voltage ratings and acoustic outputs. The CMI-1275-05TH specifically targets 5V applications requiring moderate sound pressure levels. It serves as a direct replacement for legacy CUI devices within the same electrical and mechanical parameters.

Replacement Considerations

Cross-reference with CMI-1275C-050 for similar 5V magnetic buzzer specifications. Verify dimensional tolerances and pin configurations before substitution. Ensure acoustic performance metrics meet the original design requirements.