EFB-BD32B21

Alarms, Buzzers, And Sirens Overview

The EFB-BD32B21 is a piezoelectric buzzer manufactured by Panasonic Electronic Components. It operates at a rated voltage of 12 VDC and produces a sound pressure level of 106 dB when measured at a distance of 10 cm. The device functions at a frequency of 3.2 kHz. It utilizes an externally driven transducer design with integrated feedback, requiring external driver circuitry. The component features through-hole mounting via PC pins and is packaged in bulk quantities.

Alarms, Buzzers, And Sirens Feature Summary

• Externally driven piezoelectric transducer with integrated feedback mechanism
• High acoustic output capability suitable for audible alarm applications
• Through-hole construction for reliable PCB integration

Alarms, Buzzers, And Sirens Applications

• Industrial equipment status indicators
• Consumer appliance alert systems
• Security alarm sirens

Alarms, Buzzers, And Sirens Procurement Notes

Verify the obsolete product status before initiating procurement processes. Confirm that the through-hole package and 12V DC rating align with current design requirements. Ensure availability of compatible external driver circuits as the unit requires external drive logic. Check for valid replacement alternatives due to end-of-life status.

Alarms, Buzzers, And Sirens Selection Notes

Select this component only if the system architecture supports external driving of the piezo element. The 12V DC requirement must match the available supply rails. Consider the 106 dB output level against environmental noise constraints. Verify that the 3.2 kHz frequency is appropriate for the intended alert perception needs.

Alarms, Buzzers, And Sirens Part Context

This part belongs to the EFB series of audio products from Panasonic Electronic Components. It is categorized under alarms, buzzers, and sirens. The specific model indicates a 12V rated piezoelectric device designed for general-purpose audible signaling tasks within electronic assemblies.

Alarms, Buzzers, And Sirens Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, alternative components from other manufacturers or different Panasonic series must be evaluated based on electrical and mechanical compatibility.