AI-259 Equivalent & Substitute Parts

Part Overview

The AI-259 is a through-hole piezo buzzer manufactured by PUI Audio, Inc., designed for 12V DC applications with a fixed frequency of 3.2kHz. This component functions as an internally driven indicator buzzer, requiring no external driver circuitry. The AI-259 is classified as obsolete, making identification of compatible substitute parts essential for ongoing design support and procurement planning.

Substiute Parts

AI-259

PUI Audio, Inc.In Stock: 724AI-259 Datasheet

Current PartRFQ

AI-2332-TWT-12V-2-R

PUI Audio, Inc.In Stock: 923AI-2332-TWT-12V-2-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The AI-2332-TWT-12V-2-R qualifies as a direct substitute for the AI-259 based on the following alignment of critical electrical and mechanical parameters:

Matching Parameters:

• Manufacturer: PUI Audio, Inc. (same manufacturer, AI series)
• Voltage - Rated: 12 V (identical)
• Frequency: 3.2kHz (identical)
• Technology: Piezo (identical)
• Driver Circuitry: Indicator, Internally Driven (identical)
• Input Type: DC (identical)
• Mounting Type: Through Hole (identical)
• Termination: PC Pins (identical)

The AI-2332-TWT-12V-2-R is an active product with enhanced specifications including defined sound pressure level (85dB @ 12V, 10cm), supply current (13mA), operating temperature range (-30°C ~ 100°C), and RoHS3 compliance, making it suitable for replacement in applications where the AI-259 was previously specified.

Parameter Comparison

Engineering Selection Recommendations

The AI-2332-TWT-12V-2-R is the designated substitute for the obsolete AI-259. Selection of this replacement part is based on:

• Identical electrical specifications (12V rated voltage, 3.2kHz frequency, DC input, internally driven piezo technology)
• Identical mechanical interface (through-hole mounting, PC pin termination)
• Active product status ensuring continued availability and supply chain support
• Enhanced regulatory compliance (ROHS3 compliant versus RoHS non-compliant)
• Defined performance characteristics (85dB SPL, 13mA supply current, -30°C ~ 100°C operating range) providing greater design certainty

For applications requiring RoHS non-compliant components, the AI-259 specifications remain the reference baseline; however, procurement should prioritize the AI-2332-TWT-12V-2-R due to product status and compliance advantages.

Frequently Asked Questions (FAQ)

Q: Can the AI-2332-TWT-12V-2-R directly replace the AI-259 in existing designs?

A: Yes. Both components share identical electrical parameters (12V, 3.2kHz, DC input, internally driven piezo) and mechanical interfaces (through-hole, PC pins). The AI-2332-TWT-12V-2-R is pin-compatible and functionally equivalent.

Q: What is the primary reason for substitution?

A: The AI-259 is obsolete. The AI-2332-TWT-12V-2-R is an active product from the same manufacturer and series, ensuring supply chain continuity.

Q: Are there dimensional differences between these parts?

A: The AI-2332-TWT-12V-2-R has specified dimensions (23.40mm diameter, 10.20mm height). The AI-259 dimensions are not documented. PCB layout compatibility should be confirmed if space constraints exist.

Q: Does the AI-2332-TWT-12V-2-R meet RoHS requirements?

A: Yes. The AI-2332-TWT-12V-2-R is ROHS3 compliant, whereas the AI-259 is RoHS non-compliant. This represents an improvement for regulatory compliance.

Q: What is the operating temperature range of the substitute?

A: The AI-2332-TWT-12V-2-R operates from -30°C to 100°C. The AI-259 operating temperature is not specified.

Q: Is the sound output level specified for both parts?

A: The AI-2332-TWT-12V-2-R produces 85dB SPL at 12V measured at 10cm. The AI-259 SPL is not documented.