GA0666 Equivalent & Substitute Parts

Part Overview

The GA0666 is an 8 Ohm general purpose speaker manufactured by CUI Devices, rated for 500 mW continuous power with a frequency range of 320 Hz to 7 kHz. This speaker features a top-mounted port, paper cone, and Alnico magnet construction, delivering 86 dBA sound pressure level at rated power. The part is actively produced and ROHS3 compliant, making it suitable for consumer audio applications requiring compact form factors with standard solder eyelet termination.

Equivalent and substitute parts are identified when design requirements allow for variations in power handling, frequency response, or magnet material while maintaining mechanical compatibility and electrical interface standards.

Substiute Parts

GA0666

CUI DevicesIn Stock: 1109GA0666 Datasheet

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GF0668

CUI DevicesIn Stock: 7560GF0668 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The GF0668 qualifies as a substitute for the GA0666 based on the following matching parameters:

Mechanical Compatibility:

• Identical footprint: 66.00mm x 66.00mm
• Identical port location: Top
• Identical shape: Round, Square Frame
• Identical termination: Solder Eyelet(s)
• Identical impedance: 8 Ohms

Allowed Variations:

• Power rating increase: 500 mW (GA0666) to 3 W (GF0668) — higher power capability does not prevent substitution in lower-power applications
• Frequency range expansion: 320 Hz ~ 7 kHz (GA0666) to 240 Hz ~ 20 kHz (GF0668) — extended frequency response is compatible
• Efficiency increase: 86 dBA (GA0666) to 90 dBA (GF0668) — higher SPL output is acceptable
• Magnet material change: Alnico to Ferrite — both are standard magnetic materials for general purpose speakers
• Height increase: 21.50mm (GA0666) to 29.00mm (GF0668) — mechanical clearance must be verified in the application

Parameter Comparison

Engineering Selection Recommendations

GA0666 Selection Criteria:

• Applications with strict height constraints (maximum 21.50mm seated height)
• Systems requiring Alnico magnet characteristics
• Designs limited to 500 mW continuous power dissipation
• Frequency response adequate for 320 Hz to 7 kHz range

GF0668 Selection Criteria:

• Applications tolerating increased height (29.00mm maximum seated height)
• Systems benefiting from extended frequency response (240 Hz to 20 kHz)
• Designs requiring higher power handling (3 W rated, 5 W maximum)
• Applications where Ferrite magnet material is acceptable
• Systems requiring higher sound pressure level output (90 dBA vs. 86 dBA)

Both parts maintain ROHS3 compliance and identical electrical interface (8 Ohm impedance, solder eyelet termination). Substitution of GA0666 with GF0668 is mechanically feasible provided enclosure height clearance accommodates the 7.50mm increase.

Frequently Asked Questions (FAQ)

Q: Can GF0668 replace GA0666 in all applications? A: GF0668 is mechanically and electrically compatible with GA0666 provided the application enclosure allows for the increased seated height of 29.00mm versus 21.50mm. The higher power rating and extended frequency response of GF0668 do not prevent substitution in lower-power applications.

Q: What is the impedance compatibility requirement? A: Both GA0666 and GF0668 are rated at 8 Ohms. Impedance matching is critical for audio circuit design; substitution between these parts maintains identical impedance specification.

Q: Does the magnet material change affect performance? A: GA0666 uses Alnico magnet material while GF0668 uses Ferrite. Both are standard magnetic materials for general purpose speakers. The magnet material change results in different acoustic characteristics; GF0668 delivers higher efficiency (90 dBA vs. 86 dBA) and extended frequency response.

Q: What are the packaging differences? A: GA0666 is supplied in Bag packaging while GF0668 is supplied in Box packaging. This affects handling and storage but does not impact electrical or mechanical compatibility.

Q: Is height the only mechanical constraint for substitution? A: Yes. Both parts share identical footprint (66.00mm x 66.00mm), port location (Top), shape (Round, Square Frame), and termination (Solder Eyelet(s)). Height is the only dimension that differs between the two parts.

Q: Are both parts RoHS compliant? A: Yes. Both GA0666 and GF0668 are ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements for electronic components.