AI-175 Equivalent & Substitute Parts

Part Overview

The AI-175 is a piezo buzzer manufactured by PUI Audio, Inc., designed as an internally driven indicator with a 12V DC rated voltage and 13.8mm through-hole form factor. This component is classified as obsolete, which necessitates identification of active equivalent parts to maintain design continuity and ensure supply chain availability. The AI-175 provides audible indication in electronic systems requiring a compact, through-hole mounted piezo buzzer with PC pin termination.

Substiute Parts

AI-175

PUI Audio, Inc.In Stock: 854AI-175 Datasheet

Current PartRFQ

AI-1440-TWT-12V-R

PUI Audio, Inc.In Stock: 30279AI-1440-TWT-12V-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The AI-1440-TWT-12V-R qualifies as a direct substitute for the AI-175 based on the following alignment of critical parameters:

• Voltage Rating: Both components are rated for 12V DC operation
• Technology: Both utilize piezo buzzer technology
• Driver Circuitry: Both feature internally driven indicator circuitry
• Input Type: Both accept DC input
• Mounting Type: Both are through-hole mounted
• Termination: Both use PC pin termination
• Physical Dimensions: Both share the same 13.8mm diameter housing
• Manufacturer: Both are manufactured by PUI Audio, Inc., within the same AI series

The AI-1440-TWT-12V-R is an active product with enhanced specifications including defined frequency (4kHz), sound pressure level (80dB @ 12V, 30cm), current consumption (7mA), and extended operating temperature range (-20°C ~ 70°C). The substitute maintains mechanical and electrical compatibility while offering improved documentation and active supply status.

Parameter Comparison

Engineering Selection Recommendations

The AI-1440-TWT-12V-R is the designated substitute for the obsolete AI-175. Selection of this substitute is justified by:

• Product Status: The AI-175 is obsolete with limited inventory (779 pcs), while the AI-1440-TWT-12V-R is active with substantial inventory (30,257 pcs), ensuring long-term supply availability
• Compliance: The AI-1440-TWT-12V-R achieves ROHS3 compliance, whereas the AI-175 is RoHS non-compliant, aligning with current regulatory requirements
• Mechanical Compatibility: Identical mounting type (through-hole), termination (PC pins), and primary dimensions (13.8mm diameter) ensure direct PCB integration without redesign
• Electrical Compatibility: Matching 12V DC rated voltage and internally driven indicator circuitry maintain functional equivalence in existing circuit designs
• Regulatory Alignment: Both components share identical REACH and ECCN classifications, preserving export and supply chain compliance

The 0.020" (0.50mm) increase in seated height of the AI-1440-TWT-12V-R requires verification of available PCB clearance in the target application.

Frequently Asked Questions (FAQ)

Q: Can the AI-1440-TWT-12V-R be used as a direct replacement for the AI-175 without PCB modifications?

A: Yes, the AI-1440-TWT-12V-R maintains identical through-hole mounting, PC pin termination, and 13.8mm diameter housing. The seated height increases by 0.020" (0.50mm), requiring confirmation of available vertical clearance above the PCB.

Q: What are the key electrical differences between the AI-175 and AI-1440-TWT-12V-R?

A: Both components are rated for 12V DC operation with internally driven indicator circuitry. The AI-1440-TWT-12V-R provides specified electrical characteristics: 4kHz frequency, 80dB SPL at 12V (30cm), 7mA supply current, and 3~16V operating voltage range. The AI-175 does not document these parameters.

Q: Why is the AI-1440-TWT-12V-R preferred over the AI-175?

A: The AI-175 is obsolete with limited stock. The AI-1440-TWT-12V-R is an active product with robust inventory, ROHS3 compliance, and documented performance specifications, providing superior supply chain reliability and regulatory alignment.

Q: Are there any compliance considerations when substituting the AI-175 with the AI-1440-TWT-12V-R?

A: The AI-1440-TWT-12V-R achieves ROHS3 compliance, improving regulatory standing compared to the non-compliant AI-175. Both components maintain identical REACH and ECCN classifications, preserving export compliance.

Q: What is the packaging difference between these components?

A: The AI-175 packaging is not specified. The AI-1440-TWT-12V-R is supplied in tray packaging, suitable for automated assembly processes.