AI-431 Equivalent & Substitute Parts

Part Overview

The AI-431 is a piezo buzzer designed for 12V DC applications with a 41.8mm flange panel mount configuration and wire lead termination. This component functions as an internally driven piezo indicator suitable for audible alert applications. The AI-431 is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

AI-431

PUI Audio, Inc.In Stock: 1263AI-431 Datasheet

Current PartRFQ

AI-4228-TF-LW140-3-R

PUI Audio, Inc.In Stock: 30104AI-4228-TF-LW140-3-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The AI-4228-TF-LW140-3-R qualifies as a direct substitute for the AI-431 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.
• Series: Both belong to the AI series, confirming compatibility within the established component ecosystem.
• Technology & Driver Circuitry: Both utilize piezo technology with internally driven indicator circuitry, maintaining functional equivalence.
• Input Type & Voltage: Both operate on DC input at 12V rated voltage, ensuring direct electrical compatibility.
• Mounting & Termination: Both feature panel mount flange configuration with wire lead termination, providing mechanical and electrical interface compatibility.
• Physical Dimensions: Both share the same 41.8mm diameter specification. The height difference (0.630" vs 0.650") represents a minor variation within typical mechanical tolerance ranges for this product category.

The AI-4228-TF-LW140-3-R is an active product with enhanced specifications and improved compliance status, making it the recommended equivalent for the obsolete AI-431.

Parameter Comparison

Engineering Selection Recommendations

The AI-4228-TF-LW140-3-R is the direct equivalent for the obsolete AI-431. Selection of this substitute is supported by the following engineering factors:

• Product Status: The AI-4228-TF-LW140-3-R is an active product with full manufacturing support and availability, whereas the AI-431 is obsolete and subject to supply discontinuation.
• Regulatory Compliance: The AI-4228-TF-LW140-3-R achieves ROHS3 compliance, meeting current environmental and regulatory requirements. The AI-431 is RoHS non-compliant, which may present procurement and deployment restrictions in regulated markets.
• Certification Alignment: Both parts share identical ECCN (EAR99) and HTSUS (8531.80.9041) classifications, confirming trade and export compliance equivalence.
• Mechanical Compatibility: The 0.020" (0.50mm) height difference between the two parts falls within standard mechanical tolerance ranges for panel-mounted components and does not affect functional or mechanical interface compatibility.

Frequently Asked Questions (FAQ)

Q: Can the AI-4228-TF-LW140-3-R be used as a direct replacement for the AI-431 in existing designs?

A: Yes. Both parts share identical mounting type (panel mount flange), termination method (wire leads), physical diameter (41.8mm), voltage rating (12V DC), and internal driver circuitry. The minor height difference (0.020") is within standard mechanical tolerances and does not affect interface compatibility.

Q: What is the primary reason for substituting the AI-431?

A: The AI-431 is classified as obsolete. The AI-4228-TF-LW140-3-R is an active product with ongoing manufacturing support, ensuring long-term availability and supply chain continuity.

Q: Are there compliance differences between these parts?

A: Yes. The AI-4228-TF-LW140-3-R is ROHS3 compliant, while the AI-431 is RoHS non-compliant. Both parts maintain identical REACH and export classification status (REACH Unaffected, ECCN EAR99).

Q: Does the AI-4228-TF-LW140-3-R provide additional performance specifications?

A: The AI-4228-TF-LW140-3-R includes documented specifications for frequency (2.8kHz), sound pressure level (105dB @ 12V, 10cm), current consumption (10mA), operating temperature range (-20°C ~ 60°C), and voltage operating range (3 ~ 20V). The AI-431 does not provide these specifications in available documentation.

Q: Is the packaging format compatible?

A: The AI-4228-TF-LW140-3-R is supplied in bulk packaging. Verify packaging requirements for your procurement and assembly processes.