ROM-2238P-NF

Microphones Overview

The ROM-2238P-NF-R is an omnidirectional electret condenser microphone manufactured by PUI Audio. It features a circular PCB pin-mount design with a diameter of 5.8 mm and a maximum height of 2.40 mm. The component operates on a supply voltage of 2 V and delivers an analog output signal. Key electrical specifications include a sensitivity of -40 dB and an impedance of 2.2 kOhms, ensuring clear audio capture for embedded applications.

Microphones Feature Summary

• Omnidirectional acoustic directivity for uniform sound pickup
• Electret condenser transducer technology for analog audio output
• PCB pin-mount termination style for secure board integration

Microphones Applications

• Embedded voice recognition systems
• Consumer electronic audio recording devices
• Telecommunication handsets and modules

Microphones Procurement Notes

Verify the specific suffix (e.g., -R) against the required reel or tape configuration. Confirm that the 5.8 mm diameter and 2.40 mm height dimensions fit the target PCB footprint. Ensure the 2 V operating voltage aligns with the system power rails before finalizing procurement.

Microphones Selection Notes

Select this component when a low-profile, omnidirectional electret microphone is required for space-constrained designs. The 2.2 kOhm impedance and -40 dB sensitivity are suitable for general-purpose voice capture. Verify compatibility with existing pre-amplifier circuits designed for this specific impedance range.

Microphones Part Context

This part belongs to the PUI Audio line of electret condenser microphones. It is distinct from surface-mount variants like the AOM series due to its through-hole pin-mount construction. The model represents a standard solution for cost-sensitive audio input requirements in mass-produced electronics.

Microphones Replacement Considerations

Direct substitutes must match the 5.8 mm diameter, 2 V operation, and 2.2 kOhm impedance. Cross-reference with other PUI Audio pin-mount models if mechanical constraints allow. Verify pinout compatibility to prevent circuit damage during replacement.