AST-01508MR Equivalent & Substitute Parts

Part Overview

The AST-01508MR is an 8 Ohm general purpose speaker manufactured by PUI Audio, Inc., rated for 300 mW continuous power with a frequency range of 1.7 kHz to 20 kHz. This component features a top-mounted round port, polyester cone, and neodymium-iron-boron magnet construction. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

AST-01508MR

PUI Audio, Inc.In Stock: 942AST-01508MR Datasheet

Current PartRFQ

AST-01508MR-R

PUI Audio, Inc.In Stock: 1713AST-01508MR-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AST-01508MR is determined by strict equivalence across the following critical parameters:

• Electrical Compatibility: Impedance (8 Ohms), rated power (300 mW), and maximum power (500 mW) must match exactly
• Acoustic Performance: Frequency range (1.7 kHz ~ 20 kHz), self-resonant frequency (1700 Hz), and efficiency rating (87.00 dBA) must be identical
• Mechanical Compatibility: Port location (top), shape (round), diameter (15.00 mm), and height (7.50 mm) must align with PCB layout and enclosure constraints
• Interface Compatibility: PC pin termination must be maintained for direct circuit board integration
• Material Specification: Cone material (PET) and magnet type (Nd-Fe-B) define acoustic and thermal characteristics

The AST-01508MR-R qualifies as a direct substitute based on complete parameter alignment across all electrical, acoustic, and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The AST-01508MR-R is the direct functional equivalent for the obsolete AST-01508MR. Both components share identical electrical, acoustic, and mechanical specifications, ensuring drop-in compatibility in existing circuit designs.

Product Status Consideration: The AST-01508MR-R carries Active product status with ROHS3 compliance, whereas the original AST-01508MR is classified as Obsolete and RoHS non-compliant. For new designs or systems requiring regulatory compliance with current environmental standards, the AST-01508MR-R is the appropriate selection.

Compliance Advantage: The AST-01508MR-R meets ROHS3 requirements, making it suitable for applications subject to Restriction of Hazardous Substances directives. The original part does not meet this standard.

Packaging Difference: The AST-01508MR-R is supplied in Tray packaging, whereas the original AST-01508MR uses bulk packaging. This affects handling and inventory management but does not impact electrical or mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can the AST-01508MR-R replace the AST-01508MR in existing designs?

A: Yes. The AST-01508MR-R provides complete functional equivalence. All electrical parameters (8 Ohm impedance, 300 mW rated power), acoustic characteristics (1.7 kHz ~ 20 kHz frequency range, 87 dBA efficiency), and mechanical dimensions (15.00 mm diameter, 7.50 mm height) are identical. PC pin termination ensures direct circuit board compatibility.

Q: What is the primary difference between these two parts?

A: The AST-01508MR-R is the active production equivalent of the obsolete AST-01508MR. The substitute part includes ROHS3 compliance certification and is supplied in Tray packaging rather than bulk. Electrical and acoustic performance are identical.

Q: Are there any impedance or power rating differences?

A: No. Both parts maintain 8 Ohm impedance, 300 mW rated power, and 500 mW maximum power specifications. These parameters are identical and ensure compatibility with existing amplifier circuits and power supply designs.

Q: Does the packaging change affect installation?

A: Packaging format (Tray vs. Bulk) affects supply chain handling and inventory management but does not impact component installation or performance. The physical dimensions and termination method remain unchanged.

Q: Is the AST-01508MR-R suitable for new product designs?

A: Yes. The AST-01508MR-R is the recommended choice for new designs due to its Active product status and ROHS3 compliance. It provides the same acoustic and electrical performance as the original part while meeting current regulatory requirements.