AOM-4546P Equivalent & Substitute Parts

Part Overview

The AOM-4546P is an analog electret condenser microphone manufactured by PUI Audio, Inc., designed for omnidirectional audio capture with a sensitivity of -46dB ±3dB. This component operates across a voltage range of 1.5 V to 10 V and features PC pin termination in a compact 0.382" diameter circular package.

The AOM-4546P is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing production requirements, system maintenance, and design continuity where this microphone specification remains functionally appropriate.

Substiute Parts

AOM-4546P

PUI Audio, Inc.In Stock: 843AOM-4546P Datasheet

Current PartRFQ

AOM-4546P-R

PUI Audio, Inc.In Stock: 3521AOM-4546P-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AOM-4546P is determined by strict equivalence across the following critical parameters:

• Microphone Type: Electret Condenser (fixed requirement)
• Output Configuration: Analog (fixed requirement)
• Directional Pattern: Omnidirectional (fixed requirement)
• Sensitivity: -46dB ±3dB (fixed requirement)
• Signal-to-Noise Ratio: 60dB (fixed requirement)
• Impedance: 2.2 kOhms (fixed requirement)
• Operating Voltage Range: 1.5 V ~ 10 V (fixed requirement)
• Supply Current: 500 µA (fixed requirement)
• Termination Type: PC Pins (fixed requirement)
• Physical Dimensions: 0.382" Dia (9.70mm), Height 0.185" (4.70mm), Circular shape (fixed requirement)
• Port Location: Top (fixed requirement)

The AOM-4546P-R qualifies as a direct substitute because it maintains all critical electrical and mechanical parameters while offering improved product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The AOM-4546P-R is the direct substitute for the obsolete AOM-4546P. Both components share identical electrical specifications, impedance characteristics, voltage operating parameters, and physical dimensions. The AOM-4546P-R maintains full functional compatibility while offering the advantage of active product status and ROHS3 compliance, addressing regulatory requirements for new designs and ongoing production support.

Selection of the AOM-4546P-R is appropriate where the AOM-4546P was previously specified, as all critical performance parameters remain unchanged. The substitute part is available in bulk packaging and maintains the same PC pin termination and circular form factor required for direct board-level integration.

Frequently Asked Questions (FAQ)

Q: Can the AOM-4546P-R be used as a direct replacement for the AOM-4546P?

A: Yes. The AOM-4546P-R maintains identical electrical and mechanical specifications, including sensitivity (-46dB ±3dB), impedance (2.2 kOhms), voltage range (1.5 V ~ 10 V), supply current (500 µA), termination type (PC Pins), and physical dimensions (0.382" Dia, 0.185" Max Height). Direct substitution is supported without circuit modification.

Q: What are the key differences between these parts?

A: The AOM-4546P-R offers improved product status (Active vs. Obsolete) and ROHS3 compliance (vs. RoHS non-compliant). The substitute part also specifies a frequency range of 20 Hz ~ 15 kHz, which was not documented for the original part. Packaging differs (Bulk vs. unspecified), but electrical performance remains equivalent.

Q: Are there any compatibility concerns with PCB layout or mounting?

A: No. Both parts share identical physical dimensions, circular shape, top port location, and PC pin termination. Existing PCB designs and mounting configurations require no modification.

Q: Why is the AOM-4546P classified as obsolete?

A: The AOM-4546P has reached end-of-life status. The AOM-4546P-R represents the active continuation of this product line with maintained electrical specifications and enhanced regulatory compliance.

Q: What is the significance of ROHS3 compliance on the substitute part?

A: ROHS3 compliance indicates conformance to current European Union Restriction of Hazardous Substances regulations. This certification is relevant for designs subject to regulatory requirements in markets where ROHS3 compliance is mandated.