AT-4328-P-R Equivalent & Substitute Parts

Part Overview

The AT-4328-P-R is a piezoelectric buzzer manufactured by PUI Audio, Inc., designed as an externally driven transducer for 12V applications. This component is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations. The AT-4328-P-R operates as a passive transducer requiring external drive circuitry, delivering 95dB sound pressure level at 12V with a fixed frequency of 2.8kHz and panel mount configuration.

Substiute Parts

AT-4328-P-R

PUI Audio, Inc.In Stock: 703AT-4328-P-R Datasheet

Current PartRFQ

AI-4328-P-C28-2-R

PUI Audio, Inc.In Stock: 1553AI-4328-P-C28-2-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AT-4328-P-R is determined by the following critical parameters:

• Rated voltage compatibility (12V nominal operation)
• Frequency alignment (2.8kHz fixed tone)
• Physical form factor (43mm diameter panel mount)
• Termination type (Screw Terminal, Quick Connect Tab - 0.256")
• Piezoelectric technology classification
• Sound pressure level performance range

The AI-4328-P-C28-2-R qualifies as a substitute based on matching voltage rating, frequency, physical dimensions, termination configuration, and piezoelectric technology. However, this substitute operates as an internally driven indicator rather than an externally driven transducer, requiring evaluation of the host system's drive circuitry architecture.

Parameter Comparison

Engineering Selection Recommendations

The AI-4328-P-C28-2-R is an active product with current manufacturing support, providing supply chain continuity for the obsolete AT-4328-P-R. Both components share identical physical dimensions, termination configuration, and frequency specification, enabling direct mechanical and electrical interface compatibility in panel mount applications.

The primary distinction lies in driver architecture: the AT-4328-P-R requires external drive circuitry (transducer mode), while the AI-4328-P-C28-2-R incorporates internal drive electronics (indicator mode). System integration requires confirmation that the host application can accommodate internally driven operation or that external drive circuitry can be adapted to the substitute component.

The AI-4328-P-C28-2-R demonstrates improved performance characteristics with 97dB SPL output versus 95dB for the original part, and reduced current consumption (8mA versus 10mA). The substitute operates across an extended voltage range (4 ~ 28V) compared to the original (1 ~ 20V), providing greater design flexibility. RoHS3 compliance status of the substitute ensures alignment with current environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can the AI-4328-P-C28-2-R directly replace the AT-4328-P-R in existing designs?

A: Physical and electrical interface compatibility is confirmed through matching dimensions, termination type, voltage rating, and frequency. However, the transition from externally driven to internally driven operation requires circuit architecture evaluation. If the original design includes external drive circuitry, this circuitry must be removed or bypassed for the substitute component.

Q: What are the key differences between these two parts?

A: The AT-4328-P-R operates as a passive transducer requiring external drive signal generation. The AI-4328-P-C28-2-R functions as an active indicator with integrated drive electronics, requiring only DC voltage application. Both deliver 2.8kHz tone at 12V nominal with identical physical form factors.

Q: Does the substitute provide equivalent sound output?

A: The AI-4328-P-C28-2-R produces 97dB SPL compared to 95dB for the original part, representing a 2dB increase in acoustic output at 12V, 10cm measurement distance.

Q: Are there temperature operating range considerations?

A: The AT-4328-P-R operates across -20°C to 70°C. The AI-4328-P-C28-2-R operates across -20°C to 60°C. Applications requiring operation above 60°C must retain the original part specification or identify alternative solutions.

Q: What packaging format is the substitute supplied in?

A: The AI-4328-P-C28-2-R is supplied in tray packaging, whereas the original AT-4328-P-R packaging format is not specified in available documentation.