AI-433 Equivalent & Substitute Parts

Part Overview

The AI-433 is a piezo buzzer manufactured by PUI Audio, Inc., designed as an internally driven indicator with a 12V DC rated voltage and 41.8mm flange panel mount configuration. This component features wire lead termination and is classified as obsolete product status. Due to its obsolete designation, identifying functionally equivalent active alternatives is essential for ongoing system support, design updates, and procurement continuity.

Substiute Parts

AI-433

PUI Audio, Inc.In Stock: 881AI-433 Datasheet

Current PartRFQ

AI-4228-TF-LW140-FP-R

PUI Audio, Inc.In Stock: 1121AI-4228-TF-LW140-FP-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The AI-4228-TF-LW140-FP-R qualifies as a direct substitute for the AI-433 based on the following critical parameters:

• Manufacturer: Both parts are manufactured by PUI Audio, Inc., ensuring design consistency and supply chain alignment
• Technology & Driver Circuitry: Both utilize piezo technology with internally driven indicator circuitry
• Input Type: Both operate on DC input
• Rated Voltage: Both are rated at 12V, maintaining electrical compatibility
• Mounting Configuration: Both feature panel mount with flange design
• Termination: Both use wire leads
• Physical Dimensions: Both share the same 41.8mm diameter flange specification

The AI-4228-TF-LW140-FP-R represents an active product with enhanced specifications including defined frequency (2.8kHz), sound pressure level (98dB @ 12V, 10cm), current consumption (10mA), and extended operating temperature range (-20°C ~ 60°C). These enhancements do not conflict with the AI-433 application requirements and provide improved compliance status (ROHS3 Compliant).

Parameter Comparison

Engineering Selection Recommendations

The AI-4228-TF-LW140-FP-R is the appropriate substitute for the obsolete AI-433 based on the following engineering criteria:

Product Status Alignment: The AI-433 is classified as obsolete, making the active status of the AI-4228-TF-LW140-FP-R essential for continued procurement and long-term supply chain stability.

Compliance Enhancement: The AI-4228-TF-LW140-FP-R achieves ROHS3 compliance, addressing regulatory requirements that may apply to new designs or system updates. Both parts maintain REACH Unaffected and EAR99 ECCN classifications.

Mechanical Compatibility: The substitute maintains identical flange diameter (41.8mm) and wire lead termination, ensuring direct mechanical fit in existing panel mount applications. The maximum seated height difference of 0.020" (0.50mm) is negligible for standard panel mount installations.

Electrical Compatibility: Both parts operate at 12V DC with internally driven piezo technology. The AI-4228-TF-LW140-FP-R provides defined operational parameters (2.8kHz frequency, 10mA current, 98dB SPL) that establish performance baselines for the application.

Frequently Asked Questions (FAQ)

Q: Can the AI-4228-TF-LW140-FP-R directly replace the AI-433 in existing designs?

A: Yes. Both parts share identical manufacturer, technology, driver circuitry, rated voltage, mounting type, termination method, and flange diameter. The mechanical and electrical interfaces are compatible for direct substitution in panel mount applications.

Q: What is the significance of the AI-433 being obsolete?

A: Obsolete status indicates the part is no longer manufactured or supported by PUI Audio, Inc. The AI-4228-TF-LW140-FP-R, with active product status, ensures ongoing availability and supply chain continuity for new procurements and system maintenance.

Q: Are there compliance differences between these parts?

A: The AI-433 is RoHS non-compliant, while the AI-4228-TF-LW140-FP-R is ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the substitute provides improved compliance posture. Both parts maintain identical REACH and ECCN classifications.

Q: What is the physical dimension difference?

A: The maximum seated height differs by 0.020" (0.50mm), with the AI-4228-TF-LW140-FP-R measuring 0.650" versus the AI-433 at 0.630". This minimal difference does not affect standard panel mount installations where flange-to-surface mounting is the primary constraint.

Q: Does the AI-4228-TF-LW140-FP-R provide additional operational specifications?

A: Yes. The substitute specifies frequency (2.8kHz), sound pressure level (98dB @ 12V, 10cm), current consumption (10mA), and operating temperature range (-20°C ~ 60°C). These parameters define the acoustic and thermal performance envelope for the application.

Q: Are the wire lead terminations identical?

A: Both parts use wire lead termination, ensuring compatibility with existing wiring and connector interfaces. No modifications to electrical connections are required for substitution.