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AS01808AO-3-SC-R Equivalent & Substitute Parts
Part Overview
The AS01808AO-3-SC-R is an 8 Ohm general purpose speaker rated at 1 W with a top port configuration, manufactured by PUI Audio, Inc. as part of the Slim Line Micro series. This component operates across a frequency range of 420 Hz to 14 kHz and delivers 94 dB sound pressure level at 1W/100mm testing conditions. The part is currently listed as obsolete, making identification of compatible substitute components essential for ongoing design support and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Impedance | 8 Ohms |
| Power - Rated | 1 W |
| Power - Max | 1.2 W |
| Frequency Range | 420 Hz ~ 14 kHz |
| Efficiency - dBA | 94.00 dB SPL |
| Port Location | Top |
| Shape | Rectangular |
| Size / Dimension | 0.709" L x 0.512" W (18.00mm x 13.00mm) |
| Termination | Spring Type |
| Material - Cone | Polyester, Polyethylene Terephthalate (PET) |
| Material - Magnet | Nd-Fe-B |
Substitute Part Grouping Explanation
Substitution of the AS01808AO-3-SC-R is determined by strict equivalence across the following critical parameters:
- Electrical Compatibility: Impedance (8 Ohms), rated power (1 W), and maximum power (1.2 W) must match exactly
- Acoustic Performance: Frequency range (420 Hz ~ 14 kHz) and efficiency (94 dB SPL) must be maintained
- Mechanical Compatibility: Port location (top), shape (rectangular), and physical dimensions (18.00mm x 13.00mm) must be identical
- Interface Compatibility: Termination type (spring type) must match for direct installation
The AS01808AO-SC18-WP-R meets all these criteria and is classified as a direct substitute. This part maintains identical electrical and acoustic specifications while offering improved product status (active vs. obsolete) and enhanced environmental protection (IP65 rating).
Parameter Comparison
| Parameter | AS01808AO-3-SC-R (Main) | AS01808AO-SC18-WP-R (Substitute) |
|---|---|---|
| Manufacturer | PUI Audio, Inc. | PUI Audio, Inc. |
| Series | Slim Line Micro | Slim Line Micro |
| Product Status | Obsolete | Active |
| Impedance | 8 Ohms | 8 Ohms |
| Power - Rated | 1 W | 1 W |
| Power - Max | 1.2 W | 1.2 W |
| Frequency Range | 420 Hz ~ 14 kHz | 420 Hz ~ 14 kHz |
| Frequency - Self Resonant | 420 Hz | 420 Hz |
| Efficiency - Testing | 1W/100mm | 1W/100mm |
| Efficiency - Type | Sound Pressure Level (SPL) | Sound Pressure Level (SPL) |
| Port Location | Top | Top |
| Shape | Rectangular | Rectangular |
| Material - Cone | Polyester, Polyethylene Terephthalate (PET) | Polyester, Polyethylene Terephthalate (PET) |
| Material - Magnet | Nd-Fe-B | Nd-Fe-B |
| Size / Dimension | 0.709" L x 0.512" W (18.00mm x 13.00mm) | 0.709" L x 0.512" W (18.00mm x 13.00mm) |
| Height - Seated (Max) | 0.106" (2.70mm) | 0.098" (2.50mm) |
| Termination | Spring Type | Spring Type |
| Ingress Protection | Not specified | IP65 - Dust Tight, Water Resistant |
| RoHS Status | Not specified | ROHS3 Compliant |
| REACH Status | Not specified | REACH Unaffected |
| Packaging | Not specified | Tray |
Engineering Selection Recommendations
The AS01808AO-SC18-WP-R is the direct substitute for the obsolete AS01808AO-3-SC-R. Both components are manufactured by PUI Audio, Inc. and maintain identical electrical, acoustic, and mechanical specifications across all critical parameters.
The substitute part offers the following advantages:
- Active Product Status: The AS01808AO-SC18-WP-R is currently in active production, ensuring long-term availability and supply chain stability
- Enhanced Environmental Protection: IP65 rating provides dust-tight and water-resistant performance, extending operational reliability in challenging environments
- Regulatory Compliance: ROHS3 compliance and REACH unaffected status meet current environmental and safety standards
- Reduced Height: The seated height is 0.008" (0.20mm) lower, providing improved mechanical fit in space-constrained applications
No functional or electrical compromise occurs with this substitution. The component is suitable for direct replacement in existing designs.
Frequently Asked Questions (FAQ)
Q: Can the AS01808AO-SC18-WP-R be used as a direct replacement for the AS01808AO-3-SC-R?
A: Yes. Both components share identical impedance (8 Ohms), rated power (1 W), maximum power (1.2 W), frequency range (420 Hz ~ 14 kHz), port location (top), shape (rectangular), dimensions (18.00mm x 13.00mm), and spring-type termination. No circuit modifications or mechanical redesign is required.
Q: What is the difference in height between these two parts?
A: The AS01808AO-3-SC-R has a maximum seated height of 0.106" (2.70mm), while the AS01808AO-SC18-WP-R measures 0.098" (2.50mm). This 0.008" (0.20mm) reduction may provide improved fit in applications with tight vertical clearance constraints.
Q: Does the IP65 rating on the substitute part affect compatibility?
A: No. The IP65 rating (dust-tight, water-resistant) on the AS01808AO-SC18-WP-R is an enhancement that does not affect electrical or acoustic compatibility. It provides additional environmental protection without changing the component's core functionality.
Q: Are there packaging differences between these parts?
A: The AS01808AO-3-SC-R packaging is not specified in the available data. The AS01808AO-SC18-WP-R is supplied in tray packaging. Confirm packaging requirements with your procurement process.
Q: Is the substitute part RoHS compliant?
A: Yes. The AS01808AO-SC18-WP-R is ROHS3 compliant and REACH unaffected, meeting current environmental regulations. RoHS status for the original part is not specified.
Q: Why is the original part listed as obsolete?
A: The AS01808AO-3-SC-R is obsolete, meaning it is no longer in active production. The AS01808AO-SC18-WP-R is the active equivalent and should be used for new designs and ongoing production support.
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