POM-2738P Equivalent & Substitute Parts

Part Overview

The POM-2738P is an analog electret condenser microphone manufactured by PUI Audio, Inc., designed for omnidirectional audio capture with a sensitivity of -38dB ±3dB. This component operates within a 2V to 10V supply range and features PC pin termination in a compact 0.236" diameter circular package.

The POM-2738P is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing production requirements, system redesigns, or inventory replenishment where original stock is unavailable or depleted.

Substiute Parts

POM-2738P

PUI Audio, Inc.In Stock: 764POM-2738P Datasheet

Current PartRFQ

POM-2738P-R

PUI Audio, Inc.In Stock: 2867POM-2738P-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the POM-2738P is determined by strict equivalence across the following critical parameters:

Electrical Compatibility:

• Microphone type: Electret Condenser
• Output type: Analog
• Directional pattern: Omnidirectional
• Sensitivity: -38dB ±3dB
• S/N Ratio: 60dB
• Impedance: 2.2 kOhms
• Voltage range: 2V ~ 10V
• Supply current: 500 µA

Mechanical Compatibility:

• Termination: PC Pins
• Diameter: 0.236" (6.00mm)
• Port location: Top
• Shape: Circular

Environmental & Regulatory:

• MSL Rating: 1 (Unlimited)
• REACH Status: REACH Unaffected
• ECCN: EAR99

The POM-2738P-R qualifies as a direct substitute based on full alignment with all electrical and mechanical parameters. Variations in product status, packaging format, and RoHS compliance do not affect functional interchangeability in applications where the original component specifications are met.

Parameter Comparison

Engineering Selection Recommendations

The POM-2738P-R is a direct functional equivalent to the POM-2738P. Both components share identical electrical specifications, impedance characteristics, and mechanical termination interfaces. The primary distinctions are:

Product Status: The POM-2738P is obsolete, while the POM-2738P-R maintains active production status. For new designs or long-term supply chain requirements, the POM-2738P-R is the appropriate selection.

Regulatory Compliance: The POM-2738P-R is ROHS3 compliant, whereas the original POM-2738P is RoHS non-compliant. Applications subject to RoHS directives or customer compliance requirements should specify the POM-2738P-R.

Physical Dimensions: The POM-2738P-R has a maximum height of 0.126" (3.20mm) compared to 0.114" (2.90mm) for the POM-2738P. This 0.012" (0.30mm) difference must be evaluated against available PCB clearance and mechanical constraints in the target application.

Packaging: The POM-2738P-R is supplied in bulk packaging, whereas the original part number does not specify packaging format. Verify packaging requirements for your procurement and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the POM-2738P-R be used as a direct replacement for the POM-2738P in existing designs?

A: Yes, the POM-2738P-R is electrically and mechanically equivalent. All core specifications—sensitivity, impedance, voltage range, supply current, and termination type—are identical. The 0.012" height difference must be verified against available PCB clearance.

Q: What is the significance of the product status difference (Obsolete vs. Active)?

A: The POM-2738P is no longer manufactured. The POM-2738P-R is in active production, ensuring long-term availability and supply chain stability for new applications or inventory replenishment.

Q: Does the RoHS3 compliance of the POM-2738P-R affect electrical performance?

A: No. RoHS3 compliance reflects manufacturing process and material composition standards, not electrical or acoustic performance. Both parts deliver identical functional specifications.

Q: Are there any PCB layout considerations when substituting the POM-2738P-R for the POM-2738P?

A: The increased height of the POM-2738P-R (0.126" vs. 0.114") requires verification of available vertical clearance. Horizontal footprint and pin spacing remain identical. Confirm mechanical fit within your enclosure or assembly constraints.

Q: What packaging formats are available for the POM-2738P-R?

A: The POM-2738P-R is supplied in bulk packaging. Confirm packaging specifications and minimum order quantities with your supplier for procurement planning.

Q: Are both parts suitable for the same operating voltage range?

A: Yes. Both the POM-2738P and POM-2738P-R operate across the identical 2V to 10V supply range with a rated voltage of 2V and supply current of 500 µA.