CMS-160918-30-SP Equivalent & Substitute Parts

Part Overview

The CMS-160918-30-SP is an 8 Ohm general purpose speaker manufactured by CUI Devices, rated at 700 mW with a frequency range of 400 Hz to 20 kHz and sound pressure level efficiency of 87.50 dBA. This component features a rectangular top-ported design with polyester cone and neodymium-iron-boron magnet construction. The product is currently obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

CMS-160918-30-SP

CUI DevicesIn Stock: 1041CMS-160918-30-SP Datasheet

Current PartRFQ

CMS-16098A-SP

CUI DevicesIn Stock: 1586CMS-16098A-SP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CMS-160918-30-SP is determined by the following critical parameters:

• Impedance Match: 8 Ohms (electrical compatibility requirement)
• Mechanical Compatibility: Rectangular shape, top port location, footprint 16.00mm x 9.00mm
• Power Handling: Rated power 700 mW minimum; maximum power 1 W
• Frequency Response: Minimum coverage 400 Hz to 20 kHz range
• Efficiency: Sound pressure level minimum 87.50 dBA
• Material Consistency: Polyester cone and Nd-Fe-B magnet construction
• Termination Type: Connection method compatibility

The CMS-16098A-SP meets the core electrical and mechanical substitution criteria while maintaining the same impedance, footprint, port configuration, and material specifications. Variations in rated power, frequency range, efficiency, and termination type are within acceptable substitution parameters for this product category.

Parameter Comparison

Engineering Selection Recommendations

The CMS-16098A-SP is an active product substitute for the obsolete CMS-160918-30-SP. Both components share identical impedance (8 Ohms), footprint dimensions (16.00mm x 9.00mm), port location (top), and material composition (polyester cone, Nd-Fe-B magnet).

The CMS-16098A-SP provides higher rated power (800 mW versus 700 mW) and improved efficiency (88.00 dBA versus 87.50 dBA). The frequency range differs, with the substitute covering 467.5 Hz to 10 kHz compared to the original 400 Hz to 20 kHz. The substitute features a lower profile height (3.00mm versus 4.60mm) and uses spring-type termination instead of solder pads.

Selection of the CMS-16098A-SP is supported by its active product status and ROHS3 compliance, ensuring continued availability and regulatory alignment for new designs and legacy system replacements.

Frequently Asked Questions (FAQ)

Q: Can the CMS-16098A-SP directly replace the CMS-160918-30-SP in existing designs?

A: Direct mechanical and electrical substitution is possible due to matching impedance (8 Ohms), identical footprint (16.00mm x 9.00mm), and identical port location (top). However, termination type differs (spring type versus solder pads), requiring circuit board layout evaluation. The reduced height (3.00mm versus 4.60mm) may affect enclosure fit.

Q: What are the key differences in electrical performance?

A: The CMS-16098A-SP has higher rated power (800 mW versus 700 mW) and improved efficiency (88.00 dBA versus 87.50 dBA). The frequency range is narrower (467.5 Hz to 10 kHz versus 400 Hz to 20 kHz), affecting low-frequency and high-frequency response characteristics.

Q: Are there compliance differences between these parts?

A: The CMS-160918-30-SP is RoHS Compliant. The CMS-16098A-SP is ROHS3 Compliant and REACH Unaffected, providing enhanced regulatory compliance for current manufacturing standards.

Q: What is the impact of different termination types?

A: The original part uses solder pads for permanent circuit board attachment. The substitute uses spring-type termination, which allows for removable connection. This requires different PCB footprint design and assembly methods.

Q: Is the lower profile height of the substitute a concern?

A: The CMS-16098A-SP height is 3.00mm compared to 4.60mm for the original. This 0.50mm reduction may affect enclosure clearance and acoustic chamber design. Mechanical fit verification is required for space-constrained applications.