AOM-4540P

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 supply voltage of 1.5 V and provides a sensitivity of -40 dB. Its nominal impedance is 2.2 kOhms, and it utilizes solder pin termination for circuit integration.

Feature Summary

• Omnidirectional acoustic pickup pattern
• Solder pin termination method
• Compact cylindrical housing

Applications

• Medical devices
• Industrial controls
• Security and fire systems
• Consumer electronics

Procurement Notes

Verify the specific suffix (e.g., -R) against official datasheets to confirm packaging and compliance details. Confirm current availability status directly with authorized distributors or the manufacturer, as stock levels and production lead times are subject to change. Ensure the selected variant matches the required impedance and sensitivity specifications for the target application.

Selection Notes

Select this component when an omnidirectional response is required within a compact form factor. The 2.2 kOhm impedance and -40 dB sensitivity suit standard audio input circuits. Verify that the 1.5 V operating voltage aligns with the system power supply constraints and that the solder pin termination is compatible with the printed circuit board layout.

Part Context

This part belongs to the AOM series of microphones from PUI Audio, Inc., a manufacturer specializing in audio components such as speakers, transducers, and indicators. The company has over 40 years of experience providing sound solutions for various industries including medical, industrial, and consumer electronics sectors.

Replacement Considerations

The AOM-4542P-NF-R and AOM-4544P-NF-R are documented variants within the same product family. These alternatives share similar physical dimensions and termination types but differ in sensitivity ratings (-42 dB and -44 dB respectively). Evaluate these options if different acoustic output levels are required while maintaining the same mechanical footprint.