EFM-250DN

Alarms, Buzzers, And Sirens Overview

The EFM-250DN is a piezoelectric buzzer manufactured by East Electronics, designed for through-hole mounting. It operates within a voltage range of 5V to 15V, with a rated voltage of 9V. The device produces a sound pressure level of 80dB at 9V measured at 10cm distance and functions at a frequency of 4.1kHz. It draws a supply current of 2mA during continuous operation. The component features a diameter of 14mm (0.551 inches) and utilizes PC pin termination. It is suitable for environments ranging from -25°C to 85°C.

Alarms, Buzzers, And Sirens Feature Summary

• Piezoelectric construction for reliable acoustic output
• Through-hole mounting with PC pin termination
• Continuous operating mode capability

Alarms, Buzzers, And Sirens Applications

• Electronic alarm systems
• Appliance status indicators
• Industrial control panel signaling

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific datasheet version for the EFM-250DN to confirm mechanical dimensions and electrical tolerances match your design requirements. Ensure that the PCB layout accommodates the 14mm diameter and through-hole pitch. Confirm compliance with RoHS3 standards if environmental regulations apply to your manufacturing process. Cross-reference the 9V rated voltage with your system's power supply stability to ensure optimal performance.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a compact, low-current piezoelectric buzzer is required for audible signaling in consumer or industrial electronics. The 2mA current draw makes it suitable for battery-powered applications where efficiency is critical. The 14mm form factor allows for integration into space-constrained enclosures. Consider the 80dB SPL rating to ensure adequate audibility for the intended application environment without requiring excessive drive voltage.

Alarms, Buzzers, And Sirens Part Context

This part belongs to East Electronics' audio product line, specifically categorized under alarms, buzzers, and sirens. It is an active component commonly used in electronic assemblies requiring simple, robust acoustic feedback. The through-hole technology ensures secure mechanical attachment on standard printed circuit boards.

Alarms, Buzzers, And Sirens Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with existing designs before considering alternative manufacturers.