PKM17EPPH4002-B0

Overview

The PKM17EPPH4002-B0 is an externally driven piezoelectric buzzer manufactured by Murata Electronics. It features through-hole mounting with PC pins and operates at a nominal voltage of 1.5 V. The device produces a sound pressure level of 72 dB at 1.5 V and functions at a fixed frequency of 4 kHz. Physical dimensions are 17 mm in diameter and 8.2 mm in height, with a total component height of approximately 7 mm. It is designed for board mount applications.

Feature Summary

• Externally driven piezoelectric transducer design
• Through-hole mounting with PC pin termination
• Fixed frequency operation at 4 kHz
• Compact cylindrical form factor

Applications

• Electronic equipment audio indicators
• Appliance status alerts
• Control panel signaling

Procurement Notes

Verify the specific electrical rating requirements against the 1.5 V nominal specification before integration. Confirm that the driving circuit can supply sufficient current to achieve the rated 72 dB output. Ensure mechanical clearance accommodates the 17 mm diameter and 8.2 mm height. Check for RoHS compliance documentation if required by your assembly standards.

Selection Notes

Select this component when a low-voltage, high-volume production environment requires a reliable acoustic signal. The external drive requirement allows for flexible control logic integration. Consider the 4 kHz frequency for optimal human audibility in noisy environments. Evaluate the through-hole footprint compatibility with existing PCB layouts.

Part Context

This part belongs to Murata's PKM series of piezoelectric buzzers. The series offers various sizes and drive types. The PKM17 variant provides a balance between acoustic output and physical size. It is distinct from internally driven models which include oscillator circuits.

Replacement Considerations

Direct substitutes may include other Murata PKM17 variants with different voltage ratings or sound levels. Cross-brand replacements require matching the 4 kHz frequency, 1.5 V operating voltage, and through-hole pin configuration. Verify dimensional compatibility with the original mounting hole pattern.