AT-2220 Equivalent & Substitute Parts

Part Overview

The AT-2220 is a piezoelectric buzzer transducer manufactured by PUI Audio, Inc., designed as an externally driven piezo device operating at 2.048kHz. This component is classified as obsolete, indicating discontinuation from active production. Due to its obsolete status, sourcing original AT-2220 units may present supply chain challenges. The AT-2720-TT-R serves as a direct substitute, offering equivalent functional performance with active product status and improved compliance certifications.

Substiute Parts

AT-2220

PUI Audio, Inc.In Stock: 1101AT-2220 Datasheet

Current PartRFQ

AT-2720-TT-R

PUI Audio, Inc.In Stock: 994AT-2720-TT-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The AT-2720-TT-R qualifies as a direct substitute for the AT-2220 based on the following alignment of critical parameters:

• Manufacturer: Both parts are manufactured by PUI Audio, Inc., ensuring design consistency and compatibility within the AT series
• Technology & Driver Circuitry: Both utilize piezoelectric transducer technology with externally driven operation
• Frequency: Both operate at 2.048kHz, maintaining identical resonant frequency characteristics
• Mounting & Termination: Both employ Through Hole mounting with PC Pin termination, ensuring mechanical and electrical compatibility with existing PCB designs
• Series Classification: Both belong to the AT product series, confirming functional equivalence

The AT-2720-TT-R additionally provides enhanced specifications including rated voltage (10V), defined current consumption (4.6mA), sound pressure level (88dB @ 10V, 10cm), and improved RoHS3 compliance, making it suitable for modern design requirements.

Parameter Comparison

Engineering Selection Recommendations

The AT-2720-TT-R is the appropriate selection for new designs and replacement applications:

• Active Product Status: The AT-2720-TT-R maintains active production status, ensuring long-term availability and supply chain stability compared to the obsolete AT-2220
• Compliance Certifications: The AT-2720-TT-R achieves ROHS3 compliance, meeting current regulatory requirements for electronic components in regulated markets. The AT-2220's RoHS non-compliant status presents restrictions for applications subject to environmental regulations
• Functional Equivalence: Identical frequency (2.048kHz), driver architecture, and mechanical interface ensure drop-in compatibility
• Specified Performance Parameters: The AT-2720-TT-R provides documented electrical characteristics (10V rated, 4.6mA supply current, 88dB SPL), enabling precise circuit design and validation

Frequently Asked Questions (FAQ)

Q: Can the AT-2720-TT-R directly replace the AT-2220 in existing designs?

A: Yes. Both components share identical frequency (2.048kHz), externally driven piezo transducer architecture, Through Hole mounting, and PC Pin termination. The AT-2720-TT-R is mechanically and electrically compatible with PCB layouts designed for the AT-2220.

Q: What are the key differences between these parts?

A: The AT-2220 is obsolete with unspecified electrical parameters. The AT-2720-TT-R is an active product with defined specifications: 10V rated voltage, 1~30V operating range, 4.6mA supply current, 88dB SPL output, and -20°C to 60°C operating temperature. The AT-2720-TT-R also achieves ROHS3 compliance versus the AT-2220's non-compliant status.

Q: Are there packaging differences?

A: The AT-2220 packaging is unspecified. The AT-2720-TT-R is supplied in Tray packaging with dimensions of 26.50mm x 23.00mm and maximum seated height of 9.50mm.

Q: Which part should be selected for new product development?

A: The AT-2720-TT-R is the appropriate choice for new designs. Its active production status, documented performance specifications, and ROHS3 compliance support modern design requirements and regulatory compliance.

Q: Is the AT-2720-TT-R suitable for applications requiring RoHS compliance?

A: Yes. The AT-2720-TT-R is ROHS3 compliant, meeting environmental and regulatory standards. The AT-2220's non-compliant status makes it unsuitable for applications subject to RoHS requirements.