PKMCS0909E4000-R1

Overview

The PKMCS0909E4000-R1 is a surface-mount piezoelectric buzzer from Murata Electronics, designed for external drive applications. It features a single-tone output at a frequency of 4 kHz with a sound pressure level of 72 dBA. The component operates at a rated voltage of 12.5 V and utilizes SMD/SMT termination for board mounting. Its compact physical dimensions are 9 mm in length, 9 mm in width, and 1.9 mm in height. The device is supplied in reel, cut tape, or MouseReel packaging formats.

Feature Summary

• External drive piezoelectric design for simple circuit integration
• Single-tone audio indication capability
• Compact surface-mount form factor suitable for space-constrained layouts

Applications

• General purpose audio alerts
• Status indication in electronic devices
• Consumer electronics signaling

Procurement Notes

Verify the current lifecycle status as the component is listed under End-of-Life conditions, indicating potential obsolescence and discontinuation by the manufacturer. Confirm availability through authorized distributors and check for alternative sourcing options if long-term supply stability is required for production planning.

Selection Notes

Select this component when an external drive piezoelectric buzzer with specific acoustic requirements is needed. Ensure the application supports the 12.5 V rated voltage and accommodates the 9x9 mm footprint. Consider the 4 kHz tone frequency and 72 dBA sound pressure level against environmental noise constraints.

Part Context

This part belongs to the PKMCS series of piezoelectric buzzers manufactured by Murata Electronics. The series focuses on providing reliable audio indication solutions with standardized surface-mount packages. The specific model integrates a piezoceramic element optimized for external driving circuits within a small mechanical envelope.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.