ROM-2235L-HD-R

Microphones Overview

The ROM-2235L-HD-R is a high-definition electret condenser microphone manufactured by PUI Audio, Inc. It features an omnidirectional polar pattern and a compact 5.8mm diameter package. The device operates within a frequency response range of 20 Hz to 20 kHz, ensuring true audio bandwidth performance. Key electrical specifications include a sensitivity of -35 dB ±3 dB, a maximum supply voltage of 10 VDC, and a typical current consumption of 500 µA. The component utilizes a 2.2 kΩ impedance and supports an acoustic overload point (AOP) of 110 dB. It employs solder pads for surface-mount integration.

Microphones Feature Summary

• High-definition audio quality achieved through premium-grade FETs and diaphragms
• Omnidirectional pickup pattern suitable for diverse acoustic environments
• Wide frequency response covering the full audible spectrum from 20 Hz to 20 kHz

Microphones Applications

• Consumer electronics audio input modules
• Industrial control panel voice interfaces
• Medical equipment monitoring systems

Microphones Procurement Notes

Verify the specific ordering suffix and packaging configuration directly with PUI Audio or authorized distributors before purchase. Confirm that the required sensitivity tolerance (-35 dB ±3 dB) aligns with your circuit design constraints. Ensure compatibility with the 1 VDC to 10 VDC operating voltage range and verify that the 500 µA current draw fits within your system's power budget. Check for any RoHS compliance documentation if required for your manufacturing standards.

Microphones Selection Notes

Select this component when a wide-bandwidth, omnidirectional microphone is required for general-purpose voice capture. The high-definition series designation indicates superior signal-to-noise ratio compared to standard models. Consider the 5.8mm form factor for space-constrained designs where larger microphones cannot fit. The low current consumption makes it suitable for battery-operated devices, while the high AOP rating allows for use in moderately loud environments without distortion.

Microphones Part Context

This model belongs to PUI Audio’s High Definition (HD) Electret Condenser Microphone line. These components are engineered for applications demanding precise audio fidelity and reliability. The HD series distinguishes itself through the use of premium internal materials, resulting in enhanced performance metrics over basic industrial microphones. This specific part number represents a standard omnidirectional variant within that specialized portfolio.

Microphones Replacement Considerations

Direct substitutes must match the 5.8mm footprint, -35 dB sensitivity, and omnidirectional pattern. Verify that alternative parts support the same 20 Hz–20 kHz frequency range and 10 VDC maximum voltage. Ensure the replacement maintains comparable current consumption and acoustic overload capabilities to preserve system audio integrity.