EFM-290EDQ

Alarms, Buzzers, And Sirens Overview

The EFM-290EDQ is an externally driven piezoelectric buzzer manufactured by East Electronics. It features a 40mm diameter and 20mm height with through-hole PC pin termination. The device operates at a rated voltage of 9V, drawing 10mA current. It produces a sound pressure level of 90dB at the rated voltage and has a resonant frequency of 3.4kHz. The component supports a voltage range of 6 to 12V and functions within a temperature range of -20°C to +70°C.

Alarms, Buzzers, And Sirens Feature Summary

• Externally driven piezoelectric transducer requiring external oscillator circuitry
• Through-hole mounting with PC pins for standard PCB integration
• High sound pressure output of 90dB at rated operating conditions

Alarms, Buzzers, And Sirens Applications

• Industrial alarm systems
• Electronic equipment status indicators
• Consumer appliance signaling

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific suffix 'EDQ' against official East Electronics documentation to confirm exact dimensional tolerances and terminal configuration. Ensure the driving circuit provides appropriate voltage levels within the 6-12V range to maintain specified acoustic performance without exceeding thermal limits.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a passive piezo buzzer with high acoustic output is required for through-hole assembly. Consider the 3.4kHz resonant frequency for audibility requirements and verify that the application environment remains within the -20°C to +70°C operational temperature range for reliable performance.

Alarms, Buzzers, And Sirens Part Context

This part belongs to the EFM series of piezoelectric buzzers from East Electronics. The series includes variants such as EFM-290EK and EFM-290EDFL, which share similar form factors but may differ in rated voltage or frequency characteristics. The EFM-290EDQ specifically denotes the 9V rated version with defined acoustic parameters.

Alarms, Buzzers, And Sirens Replacement Considerations

Cross-reference with EFM-290EK for potential mechanical compatibility, though electrical ratings differ. Verify if EFM-290EDFL meets frequency and voltage requirements before substitution.