COM1601 Speaker 4 Ohm 3W Top Port Equivalent & Substitute Parts

Part Overview

The COM1601 is a 4 Ohm general purpose speaker rated at 3W with top port configuration, manufactured by Pimoroni Ltd. This component features a round, square frame design with wire lead termination and dimensions of 40.00mm x 40.00mm x 20.00mm (seated height). The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system support and component sourcing.

Substiute Parts

COM1601

Pimoroni LtdIn Stock: 1045COM1601 Datasheet

Current PartRFQ

AS03204MS-3-R

PUI Audio, Inc.In Stock: 6339AS03204MS-3-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the COM1601 is determined by strict alignment of the following electrical and mechanical parameters:

• Impedance: Must be 4 Ohms to maintain circuit compatibility
• Power Rating: Must be rated at 3W minimum to support the original design specification
• Port Location: Must be top-mounted to ensure proper acoustic performance and mechanical fit
• Shape: Must maintain round, square frame configuration for housing compatibility
• Dimensions: Physical size constraints (40.00mm x 40.00mm footprint, 20.00mm maximum seated height) are critical for PCB and enclosure integration
• Termination Type: Wire leads are the specified connection method for the original design

The AS03204MS-3-R from PUI Audio, Inc. meets all substitution criteria within these defined parameters.

Parameter Comparison

Engineering Selection Recommendations

The AS03204MS-3-R is an active product from PUI Audio, Inc., providing long-term component availability compared to the obsolete COM1601. Both parts maintain ROHS3 compliance and share identical electrical specifications (4 Ohms, 3W rated power).

Physical dimensions of the AS03204MS-3-R are slightly smaller (31.70mm x 32.70mm footprint, 17.00mm seated height) compared to the COM1601 (40.00mm x 40.00mm, 20.00mm seated height). This dimensional difference requires mechanical verification for housing and PCB mounting compatibility in the target application.

Termination differs between the parts: the COM1601 uses wire leads while the AS03204MS-3-R uses solder eyelets. This requires circuit board redesign or adapter implementation for electrical connection.

Frequently Asked Questions (FAQ)

Q: Can the AS03204MS-3-R directly replace the COM1601 without modifications?

A: Electrical substitution is valid based on matching impedance (4 Ohms) and power rating (3W). However, mechanical integration requires assessment. The AS03204MS-3-R has a smaller footprint (31.70mm x 32.70mm vs. 40.00mm x 40.00mm) and lower seated height (17.00mm vs. 20.00mm). Housing and mounting compatibility must be verified. Termination type differs (solder eyelets vs. wire leads), requiring circuit board or connection method changes.

Q: What are the critical parameters for speaker substitution in this category?

A: For 4 Ohm general purpose speakers, the following parameters determine substitution validity: impedance (must match 4 Ohms), rated power (minimum 3W), port location (top-mounted), shape (round, square frame), and physical dimensions. Termination type and exact dimensional tolerances are secondary considerations dependent on specific application requirements.

Q: Why is the COM1601 obsolete and what does this mean for component sourcing?

A: Obsolete status indicates the manufacturer (Pimoroni Ltd) has discontinued production. The AS03204MS-3-R from PUI Audio, Inc. is an active product with confirmed inventory availability (6247 pieces in stock), ensuring reliable long-term sourcing for replacement or new designs.

Q: Are there compliance differences between the two parts?

A: Both parts are ROHS3 compliant. The AS03204MS-3-R includes additional certifications: IEC 60601-1-8 rating and IP65 ingress protection (dust tight, water resistant). These additional specifications may provide enhanced reliability in specific environmental conditions but are not required for basic substitution compatibility.