CDM-15008 Equivalent & Substitute Parts

Part Overview

The CDM-15008 is an 8 Ohm general purpose speaker rated at 250 mW with a top-mounted round port configuration. Manufactured by CUI Devices, this component operates across a frequency range of 720 Hz to 20 kHz with a sound pressure level of 92 dBA. The product is currently classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and component procurement.

Substiute Parts

CDM-15008

CUI DevicesIn Stock: 908CDM-15008 Datasheet

Current PartRFQ

CDMG15008-03A

CUI DevicesIn Stock: 1655CDMG15008-03A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDM-15008 is determined by the following critical parameters:

• Impedance: Must remain 8 Ohms for circuit compatibility
• Port Location and Shape: Must be top-mounted round configuration for mechanical fit
• Footprint Dimensions: 15.00mm diameter is the controlling mechanical constraint
• Termination Type: Spring type termination is required for the original design
• Power Rating: Rated power of 250 mW establishes the baseline operational envelope
• Frequency Range: Must cover or exceed the 720 Hz to 20 kHz operating band
• Material Composition: Cone and magnet materials must match for acoustic and thermal characteristics

The CDMG15008-03A qualifies as a direct substitute based on matching impedance, port configuration, diameter, and material specifications. However, variations in rated power, efficiency, frequency range, height, and termination type represent engineering trade-offs that must be evaluated within the specific application context.

Parameter Comparison

Engineering Selection Recommendations

The CDMG15008-03A is an active product from the same manufacturer, providing regulatory continuity through ROHS3 compliance and REACH unaffected status. The CDM-15008 is obsolete, establishing the primary justification for substitution.

Key engineering considerations for selection:

Mechanical Compatibility: The CDMG15008-03A has a reduced seated height of 2.80mm compared to 4.60mm for the CDM-15008. This 0.70mm reduction must be verified against available PCB or enclosure clearance in the target application.

Termination Interface: The CDM-15008 uses spring-type termination, while the CDMG15008-03A uses solder pads. This represents a fundamental connection method change requiring circuit board redesign or adapter implementation.

Acoustic Performance: The CDMG15008-03A operates with a higher rated power (300 mW versus 250 mW) but lower efficiency (88 dBA versus 92 dBA). The frequency range begins at 900 Hz instead of 720 Hz, eliminating low-frequency response below this threshold.

Regulatory Status: Both components meet RoHS requirements. The CDMG15008-03A provides enhanced compliance through ROHS3 certification and documented REACH status.

Frequently Asked Questions (FAQ)

Q: Can the CDMG15008-03A be used as a direct drop-in replacement for the CDM-15008?

A: No. While both components share identical impedance, diameter, and material specifications, the termination method differs fundamentally. The CDM-15008 uses spring-type connections, while the CDMG15008-03A requires solder pad connections. Additionally, the CDMG15008-03A is 0.70mm shorter, which may affect mechanical fit depending on enclosure design.

Q: What is the impact of the frequency range difference?

A: The CDM-15008 operates from 720 Hz to 20 kHz, while the CDMG15008-03A operates from 900 Hz to 20 kHz. Applications requiring audio reproduction below 900 Hz will experience reduced low-frequency response with the substitute part.

Q: How does the efficiency difference affect performance?

A: The CDM-15008 produces 92 dBA at the specified test condition, while the CDMG15008-03A produces 88 dBA. This 4 dBA reduction represents approximately 60% less acoustic power output at equivalent input levels.

Q: Is the higher rated power of the CDMG15008-03A an advantage?

A: The CDMG15008-03A has a 300 mW rated power versus 250 mW for the CDM-15008, providing 20% additional power handling capacity. However, this does not compensate for the lower efficiency rating. Both components share the same 500 mW maximum power specification.

Q: What are the packaging differences?

A: The CDM-15008 packaging information is not specified in the available data. The CDMG15008-03A is supplied in tray packaging.

Q: Are there compliance advantages to using the CDMG15008-03A?

A: Yes. The CDMG15008-03A carries ROHS3 certification and documented REACH unaffected status, providing enhanced regulatory documentation compared to the obsolete CDM-15008.