ROM-2238P-NF Equivalent & Substitute Parts

Part Overview

The ROM-2238P-NF is an analog electret condenser microphone manufactured by PUI Audio, Inc., designed for omnidirectional audio capture applications. This component operates within a 2 V to 10 V supply range and delivers a sensitivity of -38dB ±3dB with a 60dB signal-to-noise ratio. The microphone features PC pin termination and a compact circular form factor (0.228" diameter, 0.094" maximum height).

The ROM-2238P-NF is classified as obsolete. Locating equivalent or substitute components is necessary to support ongoing system maintenance, production continuity, and design updates where this microphone is specified.

Substiute Parts

ROM-2238P-NF

PUI Audio, Inc.In Stock: 938ROM-2238P-NF Datasheet

Current PartRFQ

ROM-2238P-NF-R

PUI Audio, Inc.In Stock: 1456ROM-2238P-NF-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ROM-2238P-NF is determined by strict equivalence across the following critical parameters:

• Microphone Type: Electret Condenser
• Output Configuration: Analog
• Directional Pattern: Omnidirectional
• Sensitivity: -38dB ±3dB
• Signal-to-Noise Ratio: 60dB
• Impedance: 2.2 kOhms
• Supply Voltage Range: 2 V ~ 10 V
• Supply Current: 500 µA
• Termination Style: PC Pins
• Physical Dimensions: 0.228" diameter, 0.094" maximum height
• Shape: Circular

The ROM-2238P-NF-R qualifies as a direct substitute based on complete alignment with all electrical and mechanical parameters listed above. The substitute part maintains identical functional specifications while offering improved product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The ROM-2238P-NF-R is the direct substitute for the obsolete ROM-2238P-NF. Both components share identical electrical and mechanical specifications, ensuring functional compatibility in existing circuit designs.

The ROM-2238P-NF-R offers two significant advantages over the original part:

1. Product Status: The substitute is classified as Active, ensuring continued availability and supply chain reliability.
2. Regulatory Compliance: The ROM-2238P-NF-R is ROHS3 compliant, whereas the original part is RoHS non-compliant. This compliance status is relevant for applications subject to RoHS directives.

Both parts maintain equivalent REACH and ECCN classifications. Selection between these parts should be based on product availability requirements and regulatory compliance mandates applicable to the end application.

Frequently Asked Questions (FAQ)

Q: Can the ROM-2238P-NF-R be used as a direct replacement for the ROM-2238P-NF?

A: Yes. The ROM-2238P-NF-R is electrically and mechanically equivalent to the ROM-2238P-NF. All critical parameters—sensitivity, impedance, voltage range, supply current, termination style, and physical dimensions—are identical between the two parts.

Q: What is the primary reason to transition from ROM-2238P-NF to ROM-2238P-NF-R?

A: The ROM-2238P-NF is obsolete, while the ROM-2238P-NF-R is active. The substitute ensures ongoing component availability. Additionally, the ROM-2238P-NF-R is ROHS3 compliant, whereas the original part is not.

Q: Are there any differences in packaging between these parts?

A: The ROM-2238P-NF is supplied in standard packaging, while the ROM-2238P-NF-R is supplied in bulk packaging. Both parts use identical PC pin termination and circular form factor.

Q: Will the ROM-2238P-NF-R function in circuits designed for the ROM-2238P-NF?

A: Yes. The substitute operates within the same 2 V to 10 V supply range, draws 500 µA, and delivers -38dB ±3dB sensitivity with 60dB signal-to-noise ratio. No circuit modifications are required.

Q: Are there any compliance considerations when selecting between these parts?

A: The ROM-2238P-NF-R is ROHS3 compliant. If your application or market requires RoHS compliance, the ROM-2238P-NF-R is the appropriate selection. Both parts are REACH unaffected and classified as EAR99.