AI-254H Equivalent & Substitute Parts

Part Overview

The AI-254H is a through-hole piezo buzzer manufactured by PUI Audio, Inc., rated for 12V DC operation with internally driven indicator circuitry. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design support and procurement continuity. The AI-254H features PC pin termination suitable for direct PCB mounting in legacy applications.

Substiute Parts

AI-254H

PUI Audio, Inc.In Stock: 1018AI-254H Datasheet

Current PartRFQ

AI-2438-TT-R

PUI Audio, Inc.In Stock: 1543AI-2438-TT-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The AI-2438-TT-R qualifies as a direct substitute for the AI-254H based on the following alignment of critical parameters:

• Manufacturer: Both parts are manufactured by PUI Audio, Inc., ensuring design consistency and supply chain continuity within the same product family
• Technology: Both utilize piezo buzzer technology with internally driven indicator circuitry
• Input Type: Both operate on DC voltage input
• Voltage - Rated: Both are rated for 12V operation
• Mounting Type: Both employ through-hole mounting configuration
• Termination: Both feature PC pin termination for direct PCB integration
• Series: Both belong to the AI series product line

The AI-2438-TT-R represents an active product with enhanced specifications and improved compliance status, making it suitable for direct replacement in applications currently using the obsolete AI-254H.

Parameter Comparison

Engineering Selection Recommendations

The AI-2438-TT-R is the designated substitute for the obsolete AI-254H. Selection of this replacement part is based on the following engineering criteria:

• Product Status Alignment: The AI-254H is obsolete; the AI-2438-TT-R is active and currently in production, ensuring long-term availability and supply chain stability
• Compliance Enhancement: The AI-2438-TT-R achieves ROHS3 compliance, whereas the AI-254H is RoHS non-compliant, supporting modern regulatory requirements
• Functional Equivalence: Both parts maintain identical core electrical characteristics (12V DC rated operation, internally driven piezo technology, through-hole PC pin termination)
• Regulatory Consistency: Both parts share identical ECCN (EAR99) and HTSUS (8531.80.9041) classifications, maintaining export and tariff consistency

For applications currently utilizing the AI-254H, direct substitution with the AI-2438-TT-R is supported without circuit redesign, provided that the mechanical envelope (24mm diameter, 17.70mm height) is compatible with the existing PCB layout.

Frequently Asked Questions (FAQ)

Q: Can the AI-2438-TT-R be used as a direct replacement for the AI-254H without circuit modification?

A: Yes. Both parts share identical rated voltage (12V), input type (DC), driver circuitry (internally driven indicator), mounting type (through-hole), and termination style (PC pins). No circuit redesign is required for electrical compatibility.

Q: What is the primary reason for substituting the AI-254H?

A: The AI-254H is classified as obsolete. The AI-2438-TT-R is an active product from the same manufacturer and series, providing procurement continuity and long-term availability.

Q: Are there mechanical compatibility considerations?

A: The AI-2438-TT-R has specified dimensions (24mm diameter, 17.70mm height). Verify that these dimensions fit within the existing PCB layout and enclosure constraints of your application. The AI-254H dimensions are not specified in available documentation.

Q: Does the AI-2438-TT-R meet modern compliance standards?

A: Yes. The AI-2438-TT-R is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The AI-254H is RoHS non-compliant.

Q: What is the operating voltage range for the AI-2438-TT-R?

A: The AI-2438-TT-R operates across 8V to 18V, with a rated voltage of 12V. This extended range provides design flexibility for applications with variable supply voltages.

Q: Are the electrical specifications of the AI-2438-TT-R documented?

A: Yes. The AI-2438-TT-R operates at 12mA supply current, produces 95dB SPL at 12V (measured at 10cm), and generates a single-tone output at 3.8kHz. Operating temperature range is -30°C to 85°C.