PKMCS1818E20A0-R1

Overview

The PKMCS1818E20A0-R1 is a surface-mount piezoelectric buzzer manufactured by Murata Electronics. It features an external drive mechanism and produces a ringer tone at a maximum frequency of 2 kHz. The device operates with a rated voltage of 18 V and delivers a sound pressure level of 100 dB. Its physical dimensions are 18 mm in length, 18 mm in width, and 7.9 mm to 8 mm in height. The component supports SMD/SMT termination and functions within a temperature range up to 105°C.

Feature Summary

• Piezoelectric construction for reliable acoustic output
• External drive capability for flexible circuit integration
• Surface mount design for automated assembly processes

Applications

• Audio indicators and alerts
• General purpose buzzers
• Electronic equipment signaling

Procurement Notes

Verify the current lifecycle status as sources indicate this part may be obsolete or not recommended for new designs. Confirm RoHS compliance details and REACH SVHC declarations prior to procurement. Ensure supply chain stability due to potential discontinuation risks associated with end-of-life components.

Selection Notes

Select this component for applications requiring high sound pressure levels and external drive control. Consider the 18V rating and 2kHz frequency limits when designing driver circuits. Evaluate the SMD package size against available PCB real estate and verify thermal management requirements for operation near the maximum temperature limit.

Part Context

This component belongs to the PKMCS series of audio devices from Murata Electronics. It is categorized under buzzers and sound indicators designed for board mounting. The series offers various configurations for electronic signaling needs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing driver circuits if considering alternative piezoelectric buzzers.