AI-550 Equivalent & Substitute Parts

Part Overview

The AI-550 is a through-hole piezo buzzer manufactured by PUI Audio, Inc., designed for 12V DC applications with a 2.9kHz operating frequency. This component functions as an internally driven piezo indicator buzzer suitable for alarm and notification applications. The AI-550 is classified as obsolete, making identification of compatible substitute parts essential for ongoing design support and production continuity.

Substiute Parts

AI-550

PUI Audio, Inc.In Stock: 884AI-550 Datasheet

Current PartRFQ

AI-2429-TT-12V-R

PUI Audio, Inc.In Stock: 13293AI-2429-TT-12V-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The AI-2429-TT-12V-R qualifies as a direct substitute for the AI-550 based on the following alignment of critical parameters:

• Manufacturer: Both parts are manufactured by PUI Audio, Inc.
• Voltage Rating: Both operate at 12V DC
• Frequency: Both operate at 2.9kHz
• Technology: Both utilize piezo technology
• Driver Circuitry: Both feature internally driven indicator configuration
• Input Type: Both accept DC input
• Mounting Type: Both are through-hole mounted
• Termination: Both use PC pins

The AI-2429-TT-12V-R represents an active product with enhanced specifications including defined voltage range (3–20V), current consumption (8mA), sound pressure level (95dB @ 12V, 10cm), operating temperature range (–20°C to 70°C), and RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

The AI-2429-TT-12V-R is the appropriate substitute for the obsolete AI-550. Both components share identical core electrical specifications: 12V rated voltage, 2.9kHz frequency, piezo technology, and internally driven indicator configuration. The substitute part maintains functional equivalence while offering the advantage of active product status, ensuring continued availability and supply chain reliability.

The AI-2429-TT-12V-R provides additional documented specifications including voltage operating range, current consumption, and sound pressure level, which were not specified for the AI-550. The substitute achieves ROHS3 compliance, whereas the original part is RoHS non-compliant. Physical dimensions are defined for the substitute (23.80mm diameter, 16.50mm maximum seated height), enabling precise PCB layout verification.

Frequently Asked Questions (FAQ)

Q: Can the AI-2429-TT-12V-R directly replace the AI-550 in existing designs?

A: Yes. Both parts share identical rated voltage (12V), frequency (2.9kHz), technology (piezo), driver configuration (internally driven indicator), input type (DC), mounting type (through hole), and termination (PC pins). The substitute maintains functional equivalence for 12V DC applications.

Q: What is the primary reason for substitution?

A: The AI-550 is classified as obsolete. The AI-2429-TT-12V-R is an active product from the same manufacturer with identical core electrical specifications, ensuring design continuity and supply availability.

Q: Are there dimensional differences between the two parts?

A: The AI-550 dimensions are not specified in available documentation. The AI-2429-TT-12V-R has defined dimensions of 0.937" diameter (23.80mm) and 0.650" maximum seated height (16.50mm). PCB layout should be verified against the substitute part's physical specifications.

Q: What is the difference in compliance status?

A: The AI-550 is RoHS non-compliant. The AI-2429-TT-12V-R is ROHS3 compliant, meeting current environmental and regulatory requirements for electronic components.

Q: Does the substitute part operate within the same voltage range?

A: The AI-550 voltage range is not specified. The AI-2429-TT-12V-R operates across 3–20V, providing broader voltage tolerance while maintaining 12V as the rated voltage. Applications operating at 12V nominal will function identically with the substitute part.

Q: What packaging format is available for the substitute?

A: The AI-2429-TT-12V-R is supplied in tray packaging. Original packaging for the AI-550 is not specified.