AOM-4540P-R

Overview

The AOM-4540P-R is an omnidirectional electret microphone manufactured by PUI Audio. It features a cylindrical design with dimensions of 9.7 mm in diameter and length, and 4.5 mm in depth. The component operates at a voltage of 1.5 V and has an impedance of 2.2 kOhms. Its sensitivity is rated at -40 dB. The device utilizes solder pin termination for circuit integration.

Feature Summary

• Omnidirectional acoustic pickup pattern
• Compact cylindrical form factor
• Solder pin electrical connection

Applications

• Consumer electronics audio input
• Portable recording devices
• Voice recognition systems

Procurement Notes

Verify the specific part number against manufacturer documentation to confirm sensitivity and impedance values. Ensure compatibility with the target operating voltage of 1.5 V. Confirm that the solder pin termination method aligns with the intended PCB assembly process. Check RoHS compliance status via official datasheets before finalizing procurement specifications.

Selection Notes

Select this component when an omnidirectional response is required within a compact cylindrical housing. The 2.2 kOhm impedance and -40 dB sensitivity define its electrical interface characteristics. Verify that the 1.5 V operating requirement fits the system power budget. Consider the solder pin termination style for manufacturing compatibility.

Part Context

This microphone belongs to the AOM series from PUI Audio, designed for general-purpose audio capture applications. The series offers various sensitivity options within similar physical footprints. This specific model provides standard sensitivity suitable for typical voice detection tasks in low-power electronic devices.

Replacement Considerations

The AOM-4546P-R and AOM-4544P-NF-R are alternative models within the same series. These substitutes share identical physical dimensions and mounting styles but differ in sensitivity ratings (-46 dB and -44 dB respectively). Verify electrical parameter compatibility before substitution.