MSE28MDD7

Alarms, Buzzers, And Sirens Overview

The MSE28MDD7 is an internally driven piezoelectric buzzer from the MSE series by Mallory Sonalert Products Inc. It operates on a DC input voltage range of 20 to 28 volts with a current rating of 50 mA. The device generates a continuous tone at a frequency of 3.85 kHz, producing a sound pressure level of 75 dB at 16 V measured at 30 cm. Designed for through-hole mounting, it features PC pins for termination and measures 23.00 mm in length and width.

Alarms, Buzzers, And Sirens Feature Summary

• Internally driven piezoelectric technology for direct connection
• Continuous tone output for steady state indication
• Through-hole construction with PC pin termination

Alarms, Buzzers, And Sirens Applications

• Electronic equipment status alerts
• Industrial alarm systems
• Audible indication in control panels

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific voltage tolerance and acoustic performance requirements against the official datasheet before procurement. Confirm that the 20-28V DC operating range aligns with the target circuit design. Ensure the through-hole PC pin configuration matches the PCB layout specifications. Cross-reference the RoHS compliance status with project environmental standards.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a compact, internally driven solution is required for high-frequency audible signaling. The 3.85 kHz frequency provides distinct audibility compared to lower-pitched alternatives. The 23 mm square form factor suits space-constrained panel applications. Consider the 50 mA current draw for power budget calculations within the system architecture.

Alarms, Buzzers, And Sirens Part Context

This part belongs to the MSE series of piezoelectric buzzers, characterized by their small footprint and internal drive circuitry. The series is designed for reliable operation in various industrial and commercial environments. The MSE28MDD7 specifically offers a continuous tone variant, distinguishing it from pulsed or chirp models within the same product family.

Alarms, Buzzers, And Sirens Replacement Considerations

For equivalent replacements, consider the MSE28LCH2 which shares similar dimensions and through-hole mounting but offers a different chirp waveform and slightly higher SPL. Verify electrical compatibility and acoustic requirements when substituting components within the MSE series.