AS03508CO-5-R Equivalent & Substitute Parts

Part Overview

The AS03508CO-5-R is an 8 Ohm general purpose speaker rated at 1 W with a top port configuration, manufactured by PUI Audio, Inc. This component operates across a frequency range of 450 Hz to 2 kHz and delivers 83 dBA sound pressure level at 1W/500mm. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

AS03508CO-5-R

PUI Audio, Inc.In Stock: 1040AS03508CO-5-R Datasheet

Current PartRFQ

AS03508CO-2-R

PUI Audio, Inc.In Stock: 835AS03508CO-2-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The AS03508CO-2-R qualifies as a direct substitute based on the following critical parameters:

• Impedance Match: Both parts operate at 8 Ohms, ensuring electrical compatibility in circuit designs
• Power Rating Alignment: Identical rated power of 1 W and maximum power of 2 W
• Port Configuration: Both feature top port location, maintaining mechanical compatibility with existing enclosure designs
• Physical Form Factor: Identical oval, rectangular frame shape with matching length (1.378" / 35.00mm)
• Material Composition: Cloth cone and Nd-Fe-B magnet construction in both parts
• Magnetic Technology: Both utilize magnetic speaker technology

The AS03508CO-2-R exhibits minor variations in frequency range (500 Hz ~ 20 kHz versus 450 Hz ~ 2 kHz) and efficiency rating (84 dBA versus 83 dBA), representing performance improvements. Width dimension increases from 0.748" to 0.787" (19.00mm to 20.00mm) and seated height increases from 0.217" to 0.315" (5.50mm to 8.00mm), requiring verification of mechanical clearance in the target application.

Parameter Comparison

Engineering Selection Recommendations

The AS03508CO-2-R is the designated substitute for the obsolete AS03508CO-5-R. Selection of this substitute is supported by:

• Active Product Status: The AS03508CO-2-R maintains active manufacturing status, ensuring long-term availability and supply chain continuity
• Regulatory Compliance: The substitute achieves ROHS3 compliance, meeting current environmental and material restriction requirements
• Electrical Equivalence: Identical impedance and power ratings guarantee direct electrical substitution without circuit modification
• Mechanical Compatibility: Matching port location and frame geometry support existing mechanical integration, subject to dimensional clearance verification

The termination change from solder pads to solder eyelet(s) requires PCB design adjustment. The increased physical dimensions (width +0.039" / 1.00mm, height +0.098" / 2.50mm) necessitate clearance confirmation within the target enclosure or mounting structure.

Frequently Asked Questions (FAQ)

Q: Can AS03508CO-2-R replace AS03508CO-5-R in existing designs without circuit modification?

A: Yes. Both parts share identical impedance (8 Ohms) and power ratings (1 W rated, 2 W maximum), enabling direct electrical substitution. PCB layout adjustment is required due to termination type change from solder pads to solder eyelet(s).

Q: What is the impact of the frequency range difference between these parts?

A: The AS03508CO-5-R operates from 450 Hz to 2 kHz, while the AS03508CO-2-R extends to 500 Hz to 20 kHz. The substitute provides broader frequency response. Applications requiring the original narrow bandwidth must evaluate whether extended frequency response affects system performance.

Q: Are there mechanical clearance concerns when substituting?

A: Yes. The AS03508CO-2-R is wider (0.787" versus 0.748") and taller (0.315" versus 0.217") than the original part. Verify available space in the target enclosure or mounting location before implementation.

Q: What is the significance of the efficiency difference?

A: The AS03508CO-2-R delivers 84 dBA compared to 83 dBA for the AS03508CO-5-R at 1W/500mm testing conditions. This 1 dBA increase represents a measurable improvement in sound pressure level output.

Q: Does the termination change affect soldering procedures?

A: Yes. The original part uses solder pads while the substitute uses solder eyelet(s). PCB footprint design must accommodate the eyelet termination style. Soldering parameters remain compatible with standard wave or reflow processes.

Q: Is the AS03508CO-2-R suitable for new designs?

A: Yes. The AS03508CO-2-R holds active product status and ROHS3 compliance, making it appropriate for new product development and long-term production runs.