EFM-320SA

Alarms, Buzzers, And Sirens Overview

The EFM-320SA is a piezoelectric active buzzer manufactured by East Electronics, designed for audible signaling applications. It operates with a rated voltage of 12V and supports a functional voltage range of 3 to 16V. The device draws a supply current of 35mA and produces a sound pressure level of 105dB at 12V measured at a distance of 30cm. It emits sound at a frequency of 2.9kHz in continuous operating mode. The unit features a 45mm diameter form factor with attached wires and functions within an ambient temperature range of -20°C to +70°C.

Alarms, Buzzers, And Sirens Feature Summary

• Built-in driving circuit enables direct connection to power sources without external oscillators
• Continuous operation mode provides sustained audible alerts
• Wide voltage tolerance allows compatibility with varying supply systems

Alarms, Buzzers, And Sirens Applications

• Industrial control panel status indicators
• Home appliance end-of-cycle notifications
• Security system alarm sirens

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific voltage rating and physical dimensions against your design requirements before integration. Confirm that the wire length and termination style meet your assembly constraints. Ensure the operating environment stays within the specified temperature limits to maintain performance reliability.

Alarms, Buzzers, And Sirens Selection Notes

Choose this component when a self-contained audio signal source is required. The integrated driver simplifies PCB layout by eliminating the need for additional oscillator circuits. Consider the 105dB output level for environments requiring high audibility.

Alarms, Buzzers, And Sirens Part Context

This part belongs to the East Electronics line of alarms, buzzers, and sirens. It is categorized as an active buzzer due to its internal driving circuitry. The product series focuses on providing reliable acoustic signaling solutions for electronic devices across various industrial and consumer sectors.

Alarms, Buzzers, And Sirens Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify pinout and mounting compatibility if considering alternative manufacturers.