PUM-5250L-R Equivalent & Substitute Parts

Part Overview

The PUM-5250L-R is an electret condenser microphone manufactured by PUI Audio, Inc., designed for analog applications requiring unidirectional pickup patterns. This component operates across a 2 V to 10 V supply range with a sensitivity specification of -50dB ±4dB and a frequency response spanning 30 Hz to 15 kHz. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

PUM-5250L-R

PUI Audio, Inc.In Stock: 1137PUM-5250L-R Datasheet

Current PartRFQ

PUM-5250L-C3310-R

PUI Audio, Inc.In Stock: 1726PUM-5250L-C3310-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PUM-5250L-R is determined by strict alignment across the following critical parameters:

Microphone type and transduction method (electret condenser technology) ensure functional equivalence in signal generation and conditioning. Output type (analog) and directional pattern (unidirectional) must remain constant to preserve circuit compatibility and acoustic performance. Sensitivity specification (-50dB ±4dB) defines the signal level delivered to downstream electronics and cannot deviate. Voltage supply parameters (2 V rated, 2 V to 10 V operating range) and current consumption (500 µA) must be compatible with existing power delivery infrastructure. Termination method (solder pads) and physical dimensions (0.236" diameter, circular shape, top port location) ensure mechanical fit within the assembly. The substitute part PUM-5250L-C3310-R maintains all these critical parameters while offering improved product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The PUM-5250L-C3310-R is the direct substitute for the obsolete PUM-5250L-R. Both components share identical core electrical specifications: electret condenser type, analog output, unidirectional pattern, -50dB ±4dB sensitivity, 2 V rated voltage with 2 V to 10 V operating range, and 500 µA supply current. Physical dimensions are compatible, with the substitute offering a marginal height reduction (0.205" versus 0.213"), which presents no mechanical constraint for standard PCB mounting applications.

The substitute part carries active product status, ensuring long-term availability and manufacturing support. Regulatory compliance is enhanced: PUM-5250L-C3310-R is ROHS3 compliant and REACH unaffected, meeting current environmental and safety standards for commercial and industrial applications. The signal-to-noise ratio specification differs (55dB versus 60dB), reflecting manufacturing process variations within the PUM series; this 5dB difference is within typical tolerance bands for electret condenser microphones in this sensitivity class.

Selection of PUM-5250L-C3310-R eliminates obsolescence risk while maintaining full electrical and mechanical compatibility with existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can PUM-5250L-C3310-R be used as a direct replacement for PUM-5250L-R in existing designs?

A: Yes. Both components are electret condenser microphones with identical sensitivity (-50dB ±4dB), voltage specifications (2 V rated, 2 V to 10 V range), current consumption (500 µA), termination method (solder pads), and physical dimensions (0.236" diameter, circular, top port). Electrical and mechanical compatibility is complete.

Q: What is the significance of the S/N ratio difference between the two parts?

A: The main part specifies 60dB signal-to-noise ratio while the substitute specifies 55dB. This 5dB difference reflects manufacturing process variations within the PUM series and does not affect functional compatibility. Both values are typical for electret condenser microphones in this sensitivity class.

Q: Are there any height clearance concerns with the substitute part?

A: No. The PUM-5250L-C3310-R has a maximum height of 0.205" compared to 0.213" for the original part. This 0.008" reduction provides additional clearance margin and presents no mounting constraints for standard PCB applications.

Q: What regulatory advantages does the substitute part offer?

A: PUM-5250L-C3310-R is ROHS3 compliant and REACH unaffected, meeting current environmental and safety standards. The original part does not specify these certifications. For applications subject to environmental regulations, the substitute part ensures compliance.

Q: Why is the original part classified as obsolete?

A: Product obsolescence typically results from manufacturer discontinuation decisions based on market demand, production efficiency, or product line consolidation. The substitute part PUM-5250L-C3310-R remains in active production status, ensuring continued availability and support.

Q: Are packaging differences between the parts significant?

A: The original part packaging is not specified. The substitute part is supplied in box packaging. For component handling, storage, and integration into assembly workflows, box packaging is standard and presents no compatibility issues with existing procurement or assembly processes.