CMR-120632-2-SP Equivalent & Substitute Parts

Part Overview

The CMR-120632-2-SP is a 32 Ohm receiver speaker manufactured by CUI Devices, rated for 20 mW power with 110 dB sound pressure level output. This component features a top-mounted rectangular port configuration with a frequency response of 300 Hz to 6.5 kHz, utilizing Nd-Fe-B magnetic technology and polyester cone material. The product is currently classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new designs requiring this speaker specification.

Substiute Parts

CMR-120632-2-SP

CUI DevicesIn Stock: 1151CMR-120632-2-SP Datasheet

Current PartRFQ

RC-1206S-1

Soberton Inc.In Stock: 1452RC-1206S-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The RC-1206S-1 manufactured by Soberton Inc. qualifies as a functional substitute based on the following alignment of critical parameters:

Matching Parameters:

• Impedance: 32 Ohms (identical)
• Efficiency - dBA: 110.00 (identical)
• Port Location: Top (identical)
• Shape: Rectangular (identical)
• Size / Dimension: 0.472" L x 0.236" W (12.00mm x 6.00mm) (identical)
• Type: Receiver (identical)
• Termination: Spring Type (identical)
• Material - Magnet: Nd-Fe-B (identical technology family)

Differing Parameters:

• Power - Rated: 10 mW (versus 20 mW on main part)
• Power - Max: 20 mW (versus 30 mW on main part)
• Frequency Range: 200 Hz ~ 3.4 kHz (versus 300 Hz ~ 6.5 kHz on main part)
• Height - Seated (Max): 0.236" (6.00mm) (versus 0.089" (2.25mm) on main part)

The RC-1206S-1 maintains identical mechanical form factor, electrical impedance, and acoustic efficiency rating, enabling direct substitution in applications where the reduced power rating and narrower frequency response are acceptable within system design parameters.

Parameter Comparison

Engineering Selection Recommendations

The RC-1206S-1 is available as an active product from Soberton Inc., providing supply continuity for applications currently using the obsolete CMR-120632-2-SP. Both components maintain identical impedance, acoustic efficiency rating, and mechanical form factor with spring-type termination.

Selection of the RC-1206S-1 requires confirmation that the reduced power rating (10 mW rated versus 20 mW) and narrower frequency response (200 Hz ~ 3.4 kHz versus 300 Hz ~ 6.5 kHz) align with system requirements. The increased seated height (6.00mm versus 2.25mm) must be evaluated against available mounting clearance in the application enclosure.

Both components meet RoHS compliance requirements, with the RC-1206S-1 additionally certified to ROHS3 and REACH Unaffected standards.

Frequently Asked Questions (FAQ)

Q: Can the RC-1206S-1 directly replace the CMR-120632-2-SP in existing designs?

A: Direct mechanical and electrical substitution is possible due to identical impedance (32 Ohms), acoustic efficiency (110 dB), port location (top), shape (rectangular), and footprint dimensions (12.00mm x 6.00mm). However, the increased seated height of the RC-1206S-1 (6.00mm versus 2.25mm) requires verification of available mounting clearance. The reduced power rating and narrower frequency response must be confirmed as acceptable for the specific application.

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

A: The primary differences are power handling capacity (RC-1206S-1 rated at 10 mW versus CMR-120632-2-SP at 20 mW), frequency response bandwidth (RC-1206S-1 covers 200 Hz ~ 3.4 kHz versus CMR-120632-2-SP covers 300 Hz ~ 6.5 kHz), and physical height when seated (RC-1206S-1 at 6.00mm versus CMR-120632-2-SP at 2.25mm). Both maintain identical impedance and acoustic efficiency specifications.

Q: Are there compliance differences between the CMR-120632-2-SP and RC-1206S-1?

A: Both components are RoHS compliant. The RC-1206S-1 carries additional ROHS3 Compliant and REACH Unaffected certifications, providing enhanced regulatory alignment for current manufacturing standards.

Q: What packaging is available for the RC-1206S-1?

A: The RC-1206S-1 is supplied in tray packaging, differing from the CMR-120632-2-SP packaging configuration.

Q: How do the cone materials differ between these speakers?

A: The CMR-120632-2-SP uses polyester/polyethylene terephthalate (PET) cone material, while the RC-1206S-1 uses polyethylenimine (PEI) cone material. Both materials are suitable for receiver speaker applications with the specified frequency ranges.