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POM-2240P-C33-R Equivalent & Substitute Parts
Part Overview
The POM-2240P-C33-R is an analog electret condenser microphone manufactured by PUI Audio, Inc., designed for omnidirectional audio capture applications. This component features a 0.236" diameter circular form factor with PC pin termination and operates across a 2V to 10V supply range. The product is currently classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | POM-2240P-C33-R |
| Manufacturer | PUI Audio, Inc. |
| Type | Electret Condenser |
| Output Type | Analog |
| Direction | Omnidirectional |
| Sensitivity | -40dB ±3dB |
| S/N Ratio | 60dB |
| Impedance | 2.2 kOhms |
| Voltage Range | 2V ~ 10V |
| Current Supply | 500 µA |
| Size / Dimension | 0.236" Dia (6.00mm) |
| Height (Max) | 0.094" (2.40mm) |
| Termination | PC Pins |
| Port Location | Top |
| Shape | Circular |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution eligibility for the POM-2240P-C33-R is determined by strict alignment across the following critical parameters:
Mandatory Matching Parameters:
- Microphone type: Electret Condenser
- Output type: Analog
- Directional pattern: Omnidirectional
- Termination style: PC Pins
- Physical dimensions: 0.236" Dia (6.00mm) with 0.094" (2.40mm) maximum height
- Port location: Top
- Shape: Circular
- Voltage range compatibility: 2V ~ 10V operation
- Impedance: 2.2 kOhms
- Current supply: 500 µA
Acceptable Variation Parameters:
- Sensitivity: ±3dB tolerance band allows for minor deviations within specification limits
- S/N Ratio: Equivalent or superior performance acceptable
- Frequency range: Additional specification acceptable if not conflicting with application requirements
- Product status: Active status preferred for long-term availability
- Compliance certifications: Enhanced compliance (RoHS3, REACH) acceptable
The POM-2242P-C33-R meets all mandatory matching criteria and qualifies as a direct substitute.
Parameter Comparison
| Parameter | POM-2240P-C33-R (Main) | POM-2242P-C33-R (Substitute) |
|---|---|---|
| Manufacturer | PUI Audio, Inc. | PUI Audio, Inc. |
| Type | Electret Condenser | Electret Condenser |
| Output Type | Analog | Analog |
| Direction | Omnidirectional | Omnidirectional |
| Sensitivity | -40dB ±3dB | -42dB ±3dB |
| S/N Ratio | 60dB | 60dB |
| Impedance | 2.2 kOhms | 2.2 kOhms |
| Voltage Range | 2V ~ 10V | 2V ~ 10V |
| Current Supply | 500 µA | 500 µA |
| Size / Dimension | 0.236" Dia (6.00mm) | 0.236" Dia (6.00mm) |
| Height (Max) | 0.094" (2.40mm) | 0.094" (2.40mm) |
| Termination | PC Pins | PC Pins |
| Port Location | Top | Top |
| Shape | Circular | Circular |
| Frequency Range | Not specified | 50 Hz ~ 16 kHz |
| Product Status | Obsolete | Active |
| RoHS Status | Not specified | ROHS3 Compliant |
| REACH Status | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
The POM-2242P-C33-R is a qualified substitute for the POM-2240P-C33-R based on the following engineering criteria:
Electrical Compatibility: Both components operate identically across voltage range (2V ~ 10V), impedance (2.2 kOhms), and current supply (500 µA). The sensitivity differential of 2dB falls within the ±3dB tolerance specification of both units, resulting in functionally equivalent audio capture performance.
Mechanical Compatibility: Identical physical dimensions (0.236" diameter, 0.094" maximum height), circular form factor, top-mounted port location, and PC pin termination ensure direct mechanical interchangeability without PCB redesign.
Product Status Advantage: The POM-2242P-C33-R holds active product status, providing assured long-term availability and supply chain continuity compared to the obsolete POM-2240P-C33-R.
Compliance Enhancement: The POM-2242P-C33-R carries ROHS3 compliance certification, meeting current regulatory requirements for electronic component manufacturing and distribution.
Frequency Range Addition: The POM-2242P-C33-R specifies a 50 Hz to 16 kHz frequency range, providing documented performance parameters not listed for the main part.
Frequently Asked Questions (FAQ)
Q: Can the POM-2242P-C33-R replace the POM-2240P-C33-R in existing designs?
A: Yes. Both components share identical electrical specifications (voltage range, impedance, current supply), mechanical dimensions, and termination style. The 2dB sensitivity difference is within specification tolerance and does not affect functional compatibility.
Q: What is the primary difference between these two models?
A: The POM-2242P-C33-R has a sensitivity rating of -42dB compared to -40dB for the POM-2240P-C33-R. Both ratings include ±3dB tolerance, making them functionally equivalent. The substitute part also includes ROHS3 compliance certification and an active product status.
Q: Are there any packaging differences?
A: The POM-2240P-C33-R is listed with standard packaging, while the POM-2242P-C33-R is supplied in bulk packaging. Both use identical PC pin termination and form factors.
Q: Does the frequency range specification affect substitution?
A: The POM-2242P-C33-R specifies a 50 Hz to 16 kHz frequency range. This documented specification does not conflict with the main part and provides additional performance clarity for system design purposes.
Q: Are there compliance or regulatory considerations?
A: The POM-2242P-C33-R carries ROHS3 compliance certification, meeting current environmental and regulatory standards. Both components maintain REACH Unaffected status.
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