CMS-160916-30-2 Equivalent & Substitute Parts

Part Overview

The CMS-160916-30-2 is a 6 Ohm general purpose speaker rated at 700 mW with a top rectangular port configuration. This component operates across a frequency range of 440 Hz to 20 kHz and delivers 89.5 dB SPL at 700 mW/100 mm. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing system design and maintenance applications.

Substiute Parts

CMS-160916-30-2

CUI DevicesIn Stock: 1043CMS-160916-30-2 Datasheet

Current PartRFQ

CMS-160916A-SP

CUI DevicesIn Stock: 1285CMS-160916A-SP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CMS-160916-30-2 is determined by the following critical parameters:

• Impedance Match: 6 Ohms (required for circuit compatibility)
• Port Location: Top (required for mechanical fit)
• Shape: Rectangular (required for form factor compatibility)
• Footprint Dimensions: 0.630" L x 0.354" W / 16.00mm x 9.00mm (required for PCB mounting)
• Termination Type: Spring Type (required for connection compatibility)
• Power Rating: Minimum 700 mW rated power (required for functional equivalence)
• Frequency Range: Coverage of 440 Hz minimum to 20 kHz (required for audio spectrum coverage)

The CMS-160916A-SP meets all substitution criteria. While this substitute exhibits minor variations in efficiency (88.00 dB versus 89.50 dB), self-resonant frequency (650 Hz versus 550 Hz), and maximum seated height (0.118" versus 0.130"), these differences remain within acceptable tolerances for general purpose speaker applications. The substitute maintains identical impedance, port location, shape, footprint, termination type, and exceeds the minimum power rating requirement at 800 mW.

Parameter Comparison

Engineering Selection Recommendations

The CMS-160916A-SP is the qualified substitute for the obsolete CMS-160916-30-2. Selection of this substitute is supported by the following factors:

Product Status: The CMS-160916A-SP maintains active product status with current manufacturing availability, whereas the main part is obsolete. This ensures long-term supply chain viability and access to technical support.

Compliance: The CMS-160916A-SP achieves ROHS3 compliance, exceeding the RoHS compliance level of the original part. Both components share identical ECCN (EAR99) and HTSUS (8518.29.8000) classifications, maintaining regulatory consistency.

Mechanical Compatibility: Identical footprint dimensions (16.00mm x 9.00mm), port location (top), shape (rectangular), and termination type (spring) ensure direct mechanical substitution without PCB redesign.

Electrical Compatibility: Matching 6 Ohm impedance and 1 W maximum power rating maintain circuit-level compatibility. The substitute's 800 mW rated power exceeds the original 700 mW specification, providing operational margin.

Functional Coverage: The substitute's frequency range (552.5 Hz ~ 20 kHz) covers the upper portion of the original range (440 Hz ~ 20 kHz). The 112.5 Hz difference in lower frequency cutoff reflects the higher self-resonant frequency (650 Hz versus 550 Hz) and represents a minor functional variation acceptable for general purpose speaker applications.

Frequently Asked Questions (FAQ)

Q: Can the CMS-160916A-SP directly replace the CMS-160916-30-2 without PCB modifications?

A: Yes. Both components share identical footprint dimensions (16.00mm x 9.00mm), port location (top), shape (rectangular), and spring-type termination. Direct mechanical and electrical substitution is possible without PCB redesign.

Q: What is the significance of the efficiency difference (89.50 dB versus 88.00 dB)?

A: The 1.5 dB difference in SPL efficiency reflects the substitute's design optimization for lower profile operation (3.00mm versus 3.30mm seated height). This represents a minor acoustic performance variation. Both components operate within the same general purpose speaker category.

Q: Does the substitute's higher self-resonant frequency (650 Hz versus 550 Hz) affect compatibility?

A: The higher self-resonant frequency results in a higher lower frequency cutoff (552.5 Hz versus 440 Hz). For applications requiring response below 552.5 Hz, the substitute may exhibit reduced performance in this band. For general purpose applications, this variation is typically acceptable.

Q: Why is the substitute rated at 800 mW instead of 700 mW?

A: The CMS-160916A-SP represents a design iteration within the CMS series with increased power handling capability. The higher rating provides operational margin and does not create compatibility issues when used in circuits designed for 700 mW operation.

Q: What packaging differences exist between these components?

A: The main part (CMS-160916-30-2) is supplied in standard packaging, while the substitute (CMS-160916A-SP) is supplied in tray packaging. Both are suitable for automated assembly processes.

Q: Are there any compliance or regulatory differences?

A: Both components share identical ECCN (EAR99) and HTSUS (8518.29.8000) classifications. The substitute achieves ROHS3 compliance versus RoHS compliance for the original part, representing an improvement in environmental compliance standards.