POM-3549L-R Equivalent & Substitute Parts

Part Overview

The POM-3549L-R is an analog electret condenser microphone manufactured by PUI Audio, Inc., designed for omnidirectional audio capture with a sensitivity of -49dB ±3dB. This component features solder pad termination and operates across a 2 V to 10 V supply range. The product is currently classified as obsolete, making identification of compatible substitute components essential for ongoing design support and production continuity.

Substiute Parts

POM-3549L-R

PUI Audio, Inc.In Stock: 1102POM-3549L-R Datasheet

Current PartRFQ

CMC-5044TF-A

CUI DevicesIn Stock: 16953CMC-5044TF-A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the POM-3549L-R is determined by the following critical parameters:

• Microphone Type: Electret condenser technology
• Output Configuration: Analog output
• Directional Pattern: Omnidirectional
• Electrical Compatibility: Voltage range 2 V ~ 10 V, impedance 2.2 kOhms, supply current 500 µA
• Mechanical Compatibility: Circular form factor 0.236" diameter (6.00mm), solder pad termination
• Audio Performance: S/N ratio 60dB minimum

The CMC-5044TF-A meets all mandatory substitution criteria. While sensitivity differs by 5dB (-44dB vs. -49dB), both components operate within the same electrical and mechanical envelope, share identical impedance and supply specifications, and maintain equivalent S/N ratio performance.

Parameter Comparison

Engineering Selection Recommendations

The CMC-5044TF-A is the qualified substitute for the POM-3549L-R based on electrical and mechanical compatibility. The substitute component is currently in active production status with ROHS3 compliance certification, ensuring long-term availability and regulatory alignment.

The primary design consideration is the 5dB sensitivity difference (-44dB vs. -49dB). This variance requires circuit-level gain adjustment in the analog signal conditioning stage to maintain equivalent output levels. The increased maximum height (5.20mm vs. 3.70mm) must be verified against PCB layout constraints and enclosure clearances.

Both components share identical impedance, supply voltage range, supply current, and termination method, enabling direct electrical substitution with appropriate firmware or analog gain compensation.

Frequently Asked Questions (FAQ)

Q: Can the CMC-5044TF-A replace the POM-3549L-R without circuit modifications?

A: Electrical substitution is direct due to matching impedance, voltage range, and supply current specifications. However, the 5dB sensitivity difference requires analog gain adjustment in the preamplifier stage to maintain equivalent output signal levels.

Q: What is the impact of the height difference between these components?

A: The CMC-5044TF-A has a maximum height of 5.20mm compared to 3.70mm for the POM-3549L-R. This 1.50mm increase must be evaluated against available PCB stack-up height and enclosure clearance to confirm mechanical fit.

Q: Are both components compatible with the same PCB footprint?

A: Yes. Both components share identical diameter (0.236" / 6.00mm) and solder pad termination, allowing use of the same PCB footprint. Height clearance verification is required.

Q: What compliance certifications apply to the substitute part?

A: The CMC-5044TF-A is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.

Q: Is frequency response specified for the POM-3549L-R?

A: Frequency response is not provided in the POM-3549L-R specification. The CMC-5044TF-A specifies 100 Hz ~ 20 kHz operation. Frequency response compatibility should be verified against application requirements.