AT-38008 Equivalent & Substitute Parts

Part Overview

The AT-38008 is an 8 Ohm general purpose speaker rated at 100 mW with a top port configuration and 94 dB sound pressure level. Manufactured by PUI Audio, Inc., this component operates across a frequency range of 700 Hz to 8.8 kHz and features a 38 mm round form factor with solder eyelet termination.

The AT-38008 is classified as obsolete. Locating equivalent or substitute parts becomes necessary when original inventory is depleted or when design requirements allow for compatible alternatives that meet current availability and compliance standards.

Substiute Parts

AT-38008

PUI Audio, Inc.In Stock: 978AT-38008 Datasheet

Current PartRFQ

AS03808PR-R

PUI Audio, Inc.In Stock: 1042AS03808PR-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AT-38008 is determined by the following critical parameters:

• Impedance: Must be 8 Ohms to maintain circuit compatibility
• Power Rating: Rated power must be 100 mW minimum to support the original design specification
• Port Location: Must be top-mounted to ensure mechanical fit within the enclosure
• Form Factor: Diameter must be 38 mm (1.496") to fit the mechanical mounting interface
• Termination: Must use solder eyelet(s) for electrical connection compatibility

The AS03808PR-R meets all mandatory substitution criteria. While it exhibits differences in frequency response, efficiency rating, and material composition, these variations remain within acceptable parameters for general purpose speaker applications where the core electrical and mechanical specifications align.

Parameter Comparison

Engineering Selection Recommendations

The AS03808PR-R is a valid substitute for the AT-38008 based on matching impedance, rated power, port location, form factor, and termination type. The substitute part carries Active product status and ROHS3 compliance, providing advantages in terms of current availability and regulatory alignment compared to the obsolete AT-38008.

The AS03808PR-R exhibits a maximum power rating of 200 mW, exceeding the 100 mW specification of the original part. The substitute operates across a narrower frequency range (800 Hz ~ 5 kHz versus 700 Hz ~ 8.8 kHz) and delivers 5 dB lower efficiency (89 dB SPL versus 94 dB SPL). These differences reflect variations in cone material (paper versus polyester/PET) and magnet technology (Nd-Fe-B versus cobalt).

Selection between these parts should be based on application requirements for frequency response bandwidth and acoustic output level, balanced against the availability and compliance status of each option.

Frequently Asked Questions (FAQ)

Q: Can the AS03808PR-R replace the AT-38008 in existing designs?

A: Yes, provided the application tolerates the narrower frequency response range (800 Hz ~ 5 kHz) and lower efficiency rating (89 dB SPL). The impedance, rated power, mechanical form factor, and termination are identical, ensuring electrical and mechanical compatibility.

Q: What is the significance of the height difference between these parts?

A: The AS03808PR-R has a maximum seated height of 9.20 mm compared to 8.00 mm for the AT-38008. This 1.20 mm difference must be evaluated against available clearance in the mechanical enclosure to ensure proper fit.

Q: Why does the AS03808PR-R have a higher maximum power rating?

A: The AS03808PR-R is rated for 200 mW maximum power, while the AT-38008 is limited to 100 mW. Both parts share a 100 mW rated power specification. The higher maximum rating on the substitute reflects its design capability but does not alter the rated operating point.

Q: How do the material differences affect performance?

A: The AT-38008 uses a polyester/PET cone with cobalt magnet, while the AS03808PR-R uses a paper cone with neodymium-iron-boron (Nd-Fe-B) magnet. These material differences contribute to the 5 dB efficiency variation and the different frequency response characteristics between the two parts.

Q: What compliance advantages does the AS03808PR-R offer?

A: The AS03808PR-R is ROHS3 compliant, whereas the AT-38008 is RoHS non-compliant. For applications subject to RoHS regulations, the AS03808PR-R provides regulatory alignment. Both parts are REACH Unaffected and carry EAR99 ECCN classification.

Q: Are there packaging considerations for the AS03808PR-R?

A: The AS03808PR-R is supplied in Tray packaging. Verify that this packaging format is compatible with your procurement, storage, and assembly processes.