CMS-35208N Equivalent & Substitute Parts

Part Overview

The CMS-35208N is an 8 Ohm general purpose speaker rated at 1 W with a top port configuration and 98 dB sound pressure level (SPL) efficiency. Manufactured by CUI Devices, this component operates across a frequency range of 576 Hz to 2.5 kHz with a self-resonant frequency of 720 Hz. The part is currently obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

CMS-35208N

CUI DevicesIn Stock: 706CMS-35208N Datasheet

Current PartRFQ

CMS-3520-18N

CUI DevicesIn Stock: 1693CMS-3520-18N Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CMS-35208N is determined by the following core parameters:

• Impedance: Must be 8 Ohms to maintain circuit compatibility
• Power Rating: Rated power of 1 W with maximum power handling of 1.5 W
• Port Location: Top port configuration required for mechanical fit
• Shape & Dimensions: Oval, rectangular frame with compatible overall dimensions and seated height
• Termination: Solder eyelet(s) for PCB integration
• Material Composition: Cloth cone and Nd-Fe-B magnet construction

The CMS-3520-18N meets these core substitution criteria. While frequency response and efficiency specifications differ, the electrical and mechanical parameters align with the allowed substitution parameters for this speaker category.

Parameter Comparison

Engineering Selection Recommendations

The CMS-3520-18N is an active product with current manufacturing support and ROHS3 compliance, providing supply chain continuity for applications currently using the obsolete CMS-35208N. Both components share identical impedance, rated power, and maximum power specifications, ensuring electrical compatibility in circuit designs.

Dimensional differences are minimal: the CMS-3520-18N is 0.02" shorter in length and 0.02" narrower in width, with a seated height reduction of 0.02". These variations fall within typical mechanical tolerance ranges for oval, rectangular frame speaker mounting.

The CMS-3520-18N operates across an extended frequency range (700 Hz to 10 kHz versus 576 Hz to 2.5 kHz) with reduced efficiency (85 dB SPL versus 98 dB SPL). Applications requiring the specific frequency response or acoustic output of the CMS-35208N must evaluate whether the CMS-3520-18N's characteristics align with system requirements.

Frequently Asked Questions (FAQ)

Q: Can the CMS-3520-18N directly replace the CMS-35208N in existing designs?

A: Electrical substitution is supported based on matching impedance (8 Ohms), power rating (1 W), and termination type (solder eyelet). Mechanical fit is compatible given the minimal dimensional differences. However, acoustic performance differs due to frequency response and efficiency variations.

Q: What are the key differences between these two speakers?

A: The primary differences are frequency range (CMS-35208N: 576 Hz–2.5 kHz; CMS-3520-18N: 700 Hz–10 kHz) and efficiency (CMS-35208N: 98 dB SPL; CMS-3520-18N: 85 dB SPL). Both maintain identical impedance, power ratings, port location, and termination configuration.

Q: Why is the CMS-35208N listed as obsolete?

A: The CMS-35208N is no longer in active production. The CMS-3520-18N represents the current active equivalent within the CMS series, providing ongoing supply availability and compliance with current regulatory standards.

Q: Are there packaging differences between these parts?

A: The CMS-35208N is supplied in standard packaging, while the CMS-3520-18N is supplied in tray packaging. Both use solder eyelet termination for PCB assembly.

Q: Do both parts meet RoHS requirements?

A: Yes. The CMS-35208N is RoHS Compliant, and the CMS-3520-18N is ROHS3 Compliant, meeting current environmental and material restriction standards.