PKM22EPH2003

Overview

The PKM22EPH2003 is a piezoelectric sounder manufactured by Murata Electronics. It operates at a resonant frequency of 3 kHz and features a peak-to-peak voltage rating of 3V. The device delivers a sound pressure level of 75 dBA at a distance of 10 cm. It utilizes through-hole solder pin termination for PCB mounting. The unit is designed for continuous operation with an external drive circuit and functions within a temperature range of -20°C to +70°C.

Feature Summary

• Piezoelectric transducer technology for reliable acoustic output
• Externally driven design requiring external oscillator circuits
• Through-hole solder pin termination for secure board integration
• Continuous operating mode suitable for alarm applications

Applications

• Electronic alarm systems
• Audible status indicators in consumer electronics
• Security system sirens
• Appliance operational alerts

Procurement Notes

Verify the specific suffix against official Murata documentation to confirm exact electrical parameters, as variations exist within the series. Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure the driving circuit matches the 3Vp-p requirement to prevent damage or insufficient volume.

Selection Notes

Select this component when a 3 kHz tone is required for audible alerts. Compare against similar PKM series variants like the PKM22EPPH40S1-B0 if a different frequency is needed. Ensure the enclosure allows top-port sound emission. Verify that the PCB layout accommodates the through-hole pin spacing and dimensions.

Part Context

This part belongs to the PKM series of piezoelectric buzzers from Murata Electronics. The series offers various frequencies and voltage ratings for general-purpose audio indication. These components are widely used in industrial and consumer equipment where simple, robust audible signaling is necessary without complex driver ICs.

Replacement Considerations

Check for direct substitutes within the PKM series such as PKM22EPPH2001-B0 (2kHz) or PKM22EPPH40S1-B0 (4kHz) if frequency tolerance allows. Verify mechanical footprint compatibility before substitution.

FAQ

What is the maximum voltage rating for the PKM22EPH2003?

The device has a peak-to-peak voltage rating of 3V.

Does this buzzer require an internal driver circuit?

No, it is an externally driven piezoelectric transducer requiring an external signal source.

What is the sound pressure level specification?

It produces 75 dBA at a distance of 10 cm.