AT-21

Description：BUZZER PIEZO - TH
Series：AT
Mfr：PUI Audio, Inc.
Package：Bulk

SKU:e74c1be8a56b Category: Alarms, Buzzers, and Sirens Brand: PUI Audio, Inc.

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Product introduction

Product Detailed Parameters

Description：BUZZER PIEZO - TH
Series：AT
Mfr：PUI Audio, Inc.
Package：Bulk
Driver Circuitry：Transducer, Externally Driven
Input Type：-
Frequency：5kHz
Technology：Piezo
Operating Mode：-
Duration：-
Sound Pressure Level (SPL)：-
Current - Supply：-
Port Location：-
Operating Temperature：-
Approval Agency：-
Ratings：-
Ingress Protection：-
Mounting Type：Through Hole
Termination：PC Pins
Height - Seated (Max)：-
Voltage - Rated：-
Voltage Range：-
Size / Dimension：-

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AT-21

Overview

The AT-21 is a piezoelectric transducer manufactured by PUI Audio, Inc. It operates at a nominal voltage of 12VDC and produces a sound pressure level of 95 dBA. The device features a resonant frequency of 5 kHz and utilizes solder pin termination for circuit integration. The component has a diameter of 24 mm and is classified under speakers and transducers.

Feature Summary

Piezoelectric transduction technology
High sound pressure output capability
Solder pin termination style

Applications

Electromechanical systems
Industrial control applications
Automation equipment

Procurement Notes

Verify the RoHS compliance status directly with the manufacturer or authorized distributor, as documentation indicates this specific part may not be compliant. Confirm the exact termination style and physical dimensions against current official datasheets to ensure compatibility with existing PCB layouts and mechanical enclosures before finalizing procurement orders.

Selection Notes

Select this component when a high-decibel audio signal is required from a compact piezoelectric source. Ensure the application circuit can provide the specified 12VDC operating voltage. Consider the 24 mm diameter for spatial constraints and verify that solder pin termination aligns with the assembly process requirements.

Part Context

PUI Audio, Inc. is a North American provider of audio components, including buzzers, sensors, and microphones. The company operates a manufacturing facility in Dayton, Ohio. The AT-21 falls within their portfolio of piezoelectric transducers designed for industrial and electromechanical signaling applications.