EAS-2P104H Equivalent & Substitute Parts

Part Overview

The EAS-2P104H is an 8 Ohm general purpose speaker manufactured by Panasonic Electronic Components, rated for 300 mW power handling with a top-mounted round port configuration. This component operates across a frequency range of 670 Hz to 4 kHz and delivers 81 dBA sound pressure level at 1 mW test conditions. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

EAS-2P104H

Panasonic Electronic ComponentsIn Stock: 852EAS-2P104H Datasheet

Current PartRFQ

PSR-28N08A-JQ

Mallory Sonalert Products Inc.In Stock: 19403PSR-28N08A-JQ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EAS-2P104H is determined by strict alignment of the following critical parameters:

• Impedance Match: 8 Ohms (electrical compatibility with circuit design)
• Physical Compatibility: 28.00 mm diameter round shape with top port location and solder pad termination
• Power Handling: Rated power must accommodate the 300 mW design specification
• Frequency Response: Operating range must cover or exceed the 670 Hz – 4 kHz band
• Acoustic Output: SPL efficiency must be suitable for the application context

The PSR-28N08A-JQ meets these substitution criteria through matching impedance, physical dimensions, port configuration, and termination method. Variations in power rating, frequency range extension, and efficiency are within acceptable engineering tolerances for general purpose speaker applications.

Parameter Comparison

Engineering Selection Recommendations

The PSR-28N08A-JQ is a direct functional substitute for the obsolete EAS-2P104H based on matching electrical impedance, physical form factor, and port configuration. The substitute maintains active product status with ROHS3 compliance, supporting modern supply chain and regulatory requirements.

The PSR-28N08A-JQ exhibits higher acoustic efficiency (89 dBA versus 81 dBA) and extended frequency response (700 Hz – 8 kHz versus 670 Hz – 4 kHz). The rated power of 250 mW is slightly lower than the original 300 mW specification; however, the maximum power rating of 500 mW provides operational headroom. The 0.30 mm increase in seated height (4.30 mm versus 4.00 mm) is negligible for most mechanical assemblies.

Magnet material differs (Ferrite versus Nd-Fe-B), reflecting manufacturing evolution in general purpose speaker design. This change does not affect electrical or mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the PSR-28N08A-JQ replace the EAS-2P104H in existing designs?

A: Yes. Both components share identical impedance (8 Ohms), diameter (28.00 mm), port location (top), and termination method (solder pads). Physical height difference is 0.30 mm, which is acceptable for most PCB layouts.

Q: Does the lower rated power of the PSR-28N08A-JQ (250 mW vs. 300 mW) affect compatibility?

A: The substitute's maximum power rating of 500 mW exceeds the original specification. For applications operating at or below 300 mW, the 250 mW rated power is conservative. Verify actual operating power levels in your circuit design.

Q: What is the impact of the different magnet materials?

A: Nd-Fe-B (neodymium) and Ferrite magnets produce different magnetic field strengths. The PSR-28N08A-JQ's higher SPL efficiency (89 dBA) indicates effective acoustic performance despite magnet material change. No electrical or mechanical interface changes result from this difference.

Q: Are there packaging or supply considerations?

A: The EAS-2P104H is obsolete with limited inventory. The PSR-28N08A-JQ is active production with 19,339 units in stock, ensuring supply continuity. The substitute is supplied in bulk packaging.

Q: Does the extended frequency range of the PSR-28N08A-JQ affect circuit operation?

A: The substitute's frequency range (700 Hz – 8 kHz) encompasses the original range (670 Hz – 4 kHz). The 30 Hz higher self-resonant frequency and extended upper bandwidth do not degrade performance in applications designed for the original component.