AT-09 Equivalent & Substitute Parts

Part Overview

The AT-09 is an externally driven electromechanical magnetic buzzer transducer operating at 2.4kHz, designed for through-hole PC pin mounting. This component is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations. The AT-09 belongs to PUI Audio's AT series and represents a legacy transducer technology requiring functional equivalents for procurement and replacement scenarios.

Substiute Parts

AT-09

PUI Audio, Inc.In Stock: 796AT-09 Datasheet

Current PartRFQ

AT-1224-TWT-12V-R

PUI Audio, Inc.In Stock: 1576AT-1224-TWT-12V-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AT-09 is determined by the following critical parameters:

• Driver Circuitry: Must be externally driven transducer configuration
• Frequency: Operating frequency of 2.4kHz
• Technology: Electromechanical/magnetic transducer type
• Mounting Type: Through hole configuration
• Termination: PC pin termination

The AT-1224-TWT-12V-R qualifies as a direct substitute based on matching all core functional parameters. This part maintains the same driver circuitry architecture, frequency specification, magnetic transducer technology, and through-hole PC pin mounting configuration. The substitute part is from the same manufacturer series (AT) and provides active product status with current availability.

Parameter Comparison

Engineering Selection Recommendations

The AT-1224-TWT-12V-R is the designated substitute for the obsolete AT-09. Selection of this part is supported by:

• Functional Equivalence: Identical driver circuitry, frequency, and transducer technology
• Product Status: Active manufacturing status ensures ongoing availability and supply chain continuity
• Compliance Enhancement: The substitute achieves ROHS3 compliance, addressing regulatory requirements not met by the original AT-09
• Regulatory Alignment: Both parts maintain REACH Unaffected status and EAR99 ECCN classification
• Manufacturer Continuity: Both components are manufactured by PUI Audio, Inc., ensuring design consistency within the AT series

The AT-1224-TWT-12V-R provides specified electrical parameters (12V rated, 6-15V operating range, 40mA supply current) and acoustic performance (85dB @ 12V, 10cm) that enable precise system design integration where the original AT-09 specifications were undefined.

Frequently Asked Questions (FAQ)

Q: Why is the AT-09 no longer available? A: The AT-09 has reached obsolete status in the manufacturer's product lifecycle. The AT-1224-TWT-12V-R represents the active equivalent within the AT series transducer family.

Q: Are the AT-09 and AT-1224-TWT-12V-R mechanically compatible? A: Both parts feature through-hole mounting with PC pin termination, ensuring mechanical compatibility in PCB designs. The AT-1224-TWT-12V-R specifies 12.00mm diameter and 9.20mm maximum seated height.

Q: What are the electrical differences between these parts? A: The AT-09 specifications do not include defined voltage, current, or frequency response parameters. The AT-1224-TWT-12V-R operates at 12V rated (6-15V range) with 40mA supply current and produces 85dB SPL at 12V, 10cm distance.

Q: Does the substitute part meet modern compliance requirements? A: The AT-1224-TWT-12V-R achieves ROHS3 compliance, addressing current regulatory standards. The original AT-09 is RoHS non-compliant.

Q: What is the packaging difference? A: The AT-1224-TWT-12V-R is supplied in tray packaging. Original AT-09 packaging specifications are not documented.

Q: Can the AT-1224-TWT-12V-R operate in the same temperature range as the AT-09? A: The AT-1224-TWT-12V-R operates across -40°C to 85°C. The AT-09 operating temperature range is not specified in available documentation.