AT-102A Equivalent & Substitute Parts

Part Overview

The AT-102A is an externally driven electromechanical magnetic buzzer manufactured by PUI Audio, Inc., operating at a fixed frequency of 2.048kHz through hole configuration. This component is classified as obsolete, making identification of compatible substitute parts essential for ongoing design support and production continuity. The AT-102A serves as a transducer in applications requiring magnetic buzzer functionality with PC pin termination.

Substiute Parts

AT-102A

PUI Audio, Inc.In Stock: 977AT-102A Datasheet

Current PartRFQ

AT-1420-ST-R

PUI Audio, Inc.In Stock: 1061AT-1420-ST-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The AT-1420-ST-R qualifies as a direct substitute for the AT-102A based on the following alignment of critical parameters:

• Manufacturer: Both parts are manufactured by PUI Audio, Inc., ensuring design consistency and reliability standards
• Series: Both belong to the AT series, confirming product family compatibility
• Driver Circuitry: Both utilize externally driven transducer architecture
• Frequency: Both operate at 2.048kHz, maintaining identical signal requirements
• Technology: Both employ electromechanical/magnetic technology
• Mounting Type: Both use through hole mounting
• Termination: Both feature PC pin termination

The AT-1420-ST-R represents an active product with enhanced specifications including rated voltage (1.5V), operational voltage range (1–3V), current supply (70mA), sound pressure level (80dB @ 1.5V, 10cm), and defined operating temperature range (–20°C to 70°C). These additional parameters provide improved design flexibility while maintaining core functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The AT-1420-ST-R is the appropriate substitute for the obsolete AT-102A. Both components share identical core functional parameters: manufacturer origin, series designation, driver architecture, operating frequency, technology platform, and mechanical interface specifications.

The AT-1420-ST-R offers the additional advantage of active product status, ensuring long-term availability and supply chain stability. The part is ROHS3 compliant, meeting current regulatory requirements for new designs and production environments where RoHS compliance is mandated.

Selection of the AT-1420-ST-R eliminates obsolescence risk while maintaining full functional compatibility with existing AT-102A circuit implementations.

Frequently Asked Questions (FAQ)

Q: Can the AT-1420-ST-R directly replace the AT-102A in existing designs?

A: Yes. Both parts share identical frequency (2.048kHz), driver architecture (externally driven transducer), technology (electromechanical/magnetic), mounting method (through hole), and termination style (PC pins). No circuit modifications are required.

Q: What is the primary reason to transition from AT-102A to AT-1420-ST-R?

A: The AT-102A is classified as obsolete. The AT-1420-ST-R is an active product from the same manufacturer and series, providing assured long-term availability and supply continuity.

Q: Does the AT-1420-ST-R require different power supply specifications?

A: The AT-1420-ST-R specifies a rated voltage of 1.5V with an operational range of 1–3V and a supply current of 70mA. The AT-102A does not provide voltage or current specifications. Circuit designs must accommodate these parameters during implementation.

Q: Are there compliance differences between these parts?

A: Yes. The AT-102A is RoHS non-compliant. The AT-1420-ST-R is ROHS3 compliant. Both parts are REACH unaffected. For applications requiring RoHS compliance, the AT-1420-ST-R is the appropriate selection.

Q: What is the physical size difference?

A: The AT-1420-ST-R specifies dimensions of 13.80mm length × 12.00mm width with a maximum seated height of 8.00mm. The AT-102A does not provide dimensional specifications.

Q: What packaging format is available for the AT-1420-ST-R?

A: The AT-1420-ST-R is supplied in tray packaging. The AT-102A packaging format is not specified.