AR027300MR-R

Overview

The AR027300MR-R is an electromagnetic receiver manufactured by PUI Audio. It features a Mylar cone and operates at a nominal impedance of 300 Ohms. The device delivers a sound pressure level of 118 dBA with a rated power handling of 2.12 Vrms. Designed for board mounting, it utilizes SMD/SMT termination types for surface mount assembly. The unit measures 27 mm in diameter and 9.5 mm in height, utilizing a ferrite magnet system.

Feature Summary

• High acoustic output capability with 118 dBA sensitivity
• Surface mount design for automated PCB assembly
• Compact cylindrical form factor suitable for space-constrained enclosures

Applications

• Medical diagnostic equipment
• Industrial control panels
• Security alarm systems

Procurement Notes

Verify the specific suffix and packaging configuration against the manufacturer's current datasheet before ordering. Confirm that the 300-ohm impedance matches the driving circuit requirements. Ensure the SMD footprint dimensions align with the target PCB layout to prevent mechanical interference during assembly.

Selection Notes

Select this component when high volume audio indication is required in a compact surface-mount package. The 300-ohm impedance distinguishes it from standard low-impedance speakers, requiring appropriate driver circuitry. Evaluate the 118 dBA rating against ambient noise levels to ensure audibility in the intended operational environment.

Part Context

This part belongs to the AR series of receivers from PUI Audio, specialized for high-efficiency audio signaling. Unlike broader speaker lines, this series focuses on compact, high-decibel output for alerting applications. The model integrates a ferrite magnet and Mylar diaphragm to balance performance with cost-effectiveness for industrial use cases.

Replacement Considerations

Consult official substitution guides for direct equivalents. Verify impedance matching if replacing with similar models to avoid driver overload.