MSE28MSU2S

Alarms, Buzzers, And Sirens Overview

The MSE28MSU2S is a piezoelectric buzzer from the Mallory Sonalert MSE series, designed for panel or board mounting applications. It operates on a DC input voltage range of 20 to 28V and draws a supply current of 50mA. The device features an internal driver circuit and produces a fast speed-up tone at a frequency of 3.9kHz. Acoustic performance includes a sound pressure level of 85dB measured at 30cm. The unit utilizes PC pin termination for electrical connection and is rated for operation within a temperature range of -40°C to 65°C.

Alarms, Buzzers, And Sirens Feature Summary

• Features an integrated internal driver circuit for direct DC activation without external oscillators.
• Produces a distinct fast speed-up acoustic signal suitable for urgent alert scenarios.
• Constructed with piezoelectric technology for reliable audio output in industrial environments.
• Equipped with PC pins for secure through-hole mounting on printed circuit boards.

Alarms, Buzzers, And Sirens Applications

• Industrial machinery status indicators
• Control panel alarm systems
• Electronic equipment fault alerts

Alarms, Buzzers, And Sirens Procurement Notes

Verify that the operating voltage matches the 20-28V DC requirement to ensure proper function. Confirm the 50mA current draw aligns with the power supply capacity. Ensure the PCB layout accommodates the specific PC pin spacing and dimensions. Check environmental ratings against the -40°C to 65°C operational limit. Validate that the fast speed-up tone pattern meets the specific application signaling needs.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a high-intensity audible alert is required for DC-powered systems. The internal driver simplifies design by removing the need for external drive circuits. Consider the 85dB output level for noise floor compatibility. The PC pin termination is ideal for standard through-hole assembly processes. Evaluate the physical size constraints against the available mounting space.

Alarms, Buzzers, And Sirens Part Context

This part belongs to the MSE series of miniature board mount buzzers manufactured by Mallory Sonalert Products Inc. The series is characterized by compact dimensions and robust piezoelectric construction. It serves as a specialized audio indicator within the broader category of electronic alarms and buzzers.

Alarms, Buzzers, And Sirens Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify mechanical fit and electrical specifications before considering alternative models from other manufacturers.

Alarms, Buzzers, And Sirens FAQ

What is the operating mode of the MSE28MSU2S?

The device operates in a fast speed-up mode, generating a rising pitch tone.

Does the MSE28MSU2S require an external oscillator?

No, it includes an internal driver circuit and accepts a direct DC input.