MB6027USC-3 Equivalent & Substitute Parts

Part Overview

The MB6027USC-3 is an electret condenser microphone manufactured by Knowles, designed for analog audio capture applications requiring unidirectional pickup patterns. This component operates across a 2 V to 10 V supply range with a sensitivity of -47dB ±3dB at 94dB SPL and covers a frequency range of 100 Hz to 10 kHz. The product is currently obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

MB6027USC-3

KnowlesIn Stock: 1162MB6027USC-3 Datasheet

Current PartRFQ

PUM-3046L-R

PUI Audio, Inc.In Stock: 5954PUM-3046L-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MB6027USC-3 is based on the following critical parameters that must align across components:

Electrical compatibility: Voltage range (2 V ~ 10 V), supply current (500 µA), and impedance (2.2 kOhms) must match or be compatible with existing circuit designs.

Mechanical compatibility: Physical dimensions (0.236" diameter circular package) and termination method (solder pads) must accommodate existing PCB layouts.

Functional compatibility: Electret condenser type, analog output, and unidirectional pickup pattern must satisfy application requirements.

Sensitivity tolerance: The substitute must operate within acceptable sensitivity ranges for the target application, accounting for the ±3dB to ±4dB tolerance bands.

The PUM-3046L-R from PUI Audio, Inc. meets these substitution criteria while offering an active product status and extended frequency response.

Parameter Comparison

Engineering Selection Recommendations

The PUM-3046L-R qualifies as a direct substitute for the MB6027USC-3 based on electrical and mechanical parameter alignment. Both components share identical voltage range, supply current, impedance, physical diameter, and solder pad termination. The substitute maintains unidirectional analog output with electret condenser technology.

The PUM-3046L-R offers advantages in product lifecycle status (active vs. obsolete), extended frequency response (30 Hz ~ 15 kHz vs. 100 Hz ~ 10 kHz), and improved signal-to-noise ratio (60dB vs. 50dB). The sensitivity differential of 1dB (-46dB vs. -47dB) falls within typical application tolerance bands. Height variance of 0.012" (0.30mm) requires verification against PCB assembly clearance constraints.

RoHS3 compliance of the PUM-3046L-R aligns with modern manufacturing standards, whereas the MB6027USC-3 carries no RoHS designation. Both components maintain REACH Unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can the PUM-3046L-R directly replace the MB6027USC-3 in existing designs?

A: Yes, provided that PCB layout accommodates the 0.012" (0.30mm) height difference and the application accepts the extended frequency response and improved signal-to-noise ratio. Electrical parameters (voltage, current, impedance) are identical.

Q: What is the sensitivity difference between these components?

A: The MB6027USC-3 operates at -47dB ±3dB while the PUM-3046L-R operates at -46dB ±4dB. The 1dB difference represents a minor variation within typical microphone application tolerances. The PUM-3046L-R tolerance band is ±4dB compared to ±3dB for the original component.

Q: Are there mechanical compatibility concerns?

A: Both components share the same 0.236" (6.00mm) diameter circular package with solder pad termination and top-mounted port location. The PUM-3046L-R is 0.012" (0.30mm) taller (0.126" vs. 0.114" maximum height). Verify clearance in your specific PCB assembly before implementation.

Q: What is the product lifecycle status difference?

A: The MB6027USC-3 is obsolete, limiting future availability and support. The PUM-3046L-R is active, ensuring ongoing supply chain access and manufacturer technical support.

Q: Does the extended frequency response of the PUM-3046L-R affect compatibility?

A: The PUM-3046L-R covers 30 Hz ~ 15 kHz versus the MB6027USC-3 range of 100 Hz ~ 10 kHz. Applications requiring the original narrower bandwidth must evaluate whether the extended response introduces undesired low-frequency or high-frequency content. Circuit-level filtering may be necessary.