EFM-810

Alarms, Buzzers, And Sirens Overview

The EFM-810 is a piezoelectric buzzer manufactured by East Electronics, designed for audible signaling applications. It operates at a nominal voltage of 12 VDC with a current consumption of 5 mA. The device generates an acoustic output of 88 dB when measured at a distance of 12 volts and 30 cm. The operating frequency is specified at 3.5 kHz. The component features wire leads for connection, specifically noted as 55 mm in length in some documentation, facilitating direct integration into circuit boards or enclosures without additional connectors.

Alarms, Buzzers, And Sirens Feature Summary

• Provides high-intensity audible alerts with 88 dB sound pressure level
• Operates on standard 12 VDC power supply
• Features integrated wire leads for simplified mounting

Alarms, Buzzers, And Sirens Applications

• Industrial control panel alarms
• Home appliance status indicators
• Security system sirens

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific lead length configuration required for your assembly, as sources indicate variations such as 30 cm versus 55 mm leads. Confirm that the 12 VDC rating matches your system's power supply to ensure correct operation and longevity. Check for any suffixes like -DG if specific packaging or variant requirements exist, although the base part number defines the core electrical characteristics.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a robust, high-decibel audible indicator is needed for 12 V systems. The fixed 3.5 kHz frequency provides a distinct tone suitable for attention-grabbing alarms. Ensure the enclosure allows for adequate sound projection given the 88 dB output. Consider the wire lead length carefully to avoid tension issues during installation.

Alarms, Buzzers, And Sirens Part Context

East Electronics produces a range of electromechanical signaling devices. The EFM series typically includes piezoelectric buzzers characterized by low power consumption and reliable performance. This model falls within their standard alarm and siren lineup, targeting cost-effective solutions for consumer and industrial electronics requiring clear auditory feedback.

Alarms, Buzzers, And Sirens Replacement Considerations

Direct substitutes must match the 12 VDC operating voltage, 3.5 kHz frequency, and 88 dB acoustic output. Verify physical dimensions and terminal type (wire leads vs. pins) to ensure mechanical compatibility. Generic piezo buzzers may differ in impedance or sound pressure levels, so datasheet comparison is essential.