MSR320SR

Alarms, Buzzers, And Sirens Overview

The MSR320SR is a sealed piezoelectric buzzer from the Mallory Sonalert MSR series, designed for board-mount applications. It operates on a DC input voltage range of 3V to 20V with a typical current consumption of 16mA. The device features an internal driver circuit and produces a constant tone at a frequency of 2.9kHz. Acoustic performance includes a sound pressure level of 71dB(A) at 10cm and 86dB(A) at 10cm under specified test conditions. The unit measures 23mm by 10mm and utilizes PC pin termination for surface or through-hole mounting.

Alarms, Buzzers, And Sirens Feature Summary

• Sealed construction providing environmental protection
• Integrated internal driver circuit for direct logic interface
• Compact board-mount form factor suitable for space-constrained designs

Alarms, Buzzers, And Sirens Applications

• Medical equipment audio indicators
• Industrial control panel alarms
• Consumer appliance status alerts

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific suffix configuration against the manufacturer's datasheet to ensure correct acoustic output and electrical characteristics. Confirm that the sealed design meets the required ingress protection standards for the intended environment. Check RoHS compliance documentation if restricted substances are a constraint for the target market.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a compact, low-voltage audible indicator is required. The sealed nature distinguishes it from open-frame alternatives, offering better durability in harsh environments. Ensure the operating voltage aligns with the 3V-20DC range and that the 16mA current draw fits within the system power budget.

Alarms, Buzzers, And Sirens Part Context

This part belongs to the MSR series of piezoelectric buzzers manufactured by Mallory Sonalert Products Inc. The series is characterized by its sealed housing and integrated driver technology, allowing for simple connection to microcontrollers or logic gates without external oscillators.

Alarms, Buzzers, And Sirens FAQ

What is the operating voltage range?

The MSR320SR operates on a DC voltage range of 3V to 20V.

Does this buzzer require an external oscillator?

No, the MSR320SR contains an internal driver circuit and does not require an external oscillator.