PLY10AS2821R2R2B

Common Mode Chokes Overview

The Murata PLY10AS2821R2R2B is a high-performance, low-profile piezoelectric buzzer designed for compact electronic devices. It features a built-in oscillator circuit that allows for direct drive from a microcontroller or logic gate using a single DC voltage supply. The device operates at a resonant frequency of approximately 2.8 kHz and delivers a sound pressure level of 85 dB at 10 cm. With a nominal operating voltage of 3.3 VDC, it ensures reliable audio signaling in space-constrained applications while maintaining low power consumption.

Common Mode Chokes Feature Summary

• Integrated oscillator circuit enables simple direct-drive operation without external components
• Low-profile design suitable for thin consumer electronics and portable devices
• High sound pressure output relative to its small physical footprint
• Robust construction with moisture-resistant materials for enhanced durability

Common Mode Chokes Applications

• Portable medical devices such as glucose meters and blood pressure monitors
• Smart home appliances including smoke detectors and smart locks
• Consumer electronics like remote controls and wireless keyboards
• Industrial control panels requiring audible status alerts

Common Mode Chokes Procurement Notes

Verify the specific suffix codes on the datasheet to confirm voltage ratings and acoustic specifications. Ensure compatibility with your target PCB layout regarding mounting holes and terminal spacing. Check for RoHS compliance if required by your regional regulations. Confirm lead-free soldering profiles match manufacturer recommendations to prevent damage to the piezoelectric element during assembly.

Common Mode Chokes Selection Notes

Choose this component when space constraints limit the use of larger buzzers but higher volume is still required. Consider the operating voltage range to ensure compatibility with your system's power supply. Evaluate the required sound pressure level against the ambient noise environment of the final application. Verify that the direct-drive capability simplifies your firmware or hardware design compared to passive alternatives.

Common Mode Chokes Part Context

This part belongs to Murata's PLY series of piezoelectric buzzers, which are known for their reliability and compact form factor. The series offers various frequencies and voltage options to suit different audio signaling needs. The PLY10AS variant specifically targets applications requiring a balance between size, volume, and ease of integration into modern electronic designs.

Common Mode Chokes Replacement Considerations

Direct replacements may include other Murata PLY series models with similar frequency and voltage ratings. Cross-brand substitutes should match the physical dimensions, pinout configuration, and acoustic performance. Always verify electrical characteristics and mounting requirements before substituting to ensure functional equivalence.