AT-20

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

SKU:f9562d10cc80 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：Tray
Driver Circuitry：Transducer, Externally Driven
Input Type：-
Frequency：-
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-20

Overview

The AT-20 is a piezoelectric audio transducer manufactured by PUI Audio, Inc. It operates at a resonant frequency of 4 kHz and delivers a sound pressure level (SPL) of 85 dBA. The device supports a maximum peak-to-peak voltage of 30 Vpp and utilizes solder pin termination for circuit integration. It is designed to function within an operating temperature range starting from -20°C.

Feature Summary

Piezoelectric transduction mechanism
High-frequency acoustic output capability
Robust thermal performance for demanding environments

Applications

Industrial equipment status indicators
Security system alerts
Medical device auditory feedback

Procurement Notes

Verify the specific datasheet version for the AT-20 to confirm exact electrical tolerances and mechanical dimensions prior to integration. Ensure that the driving circuitry can supply the required 30 Vpp without exceeding the component's dielectric limits. Confirm that the operating environment remains above the minimum -20°C threshold to maintain reliable acoustic performance and structural integrity during operation.

Selection Notes

Select the AT-20 when a compact, high-frequency audible alert is required. Its 4 kHz resonance provides distinct audibility in noisy industrial settings. The solder pin termination simplifies PCB assembly compared to wire-lead alternatives. Consider its 85 dBA output against the specific distance and ambient noise requirements of the target application to ensure sufficient signal clarity.

Part Context

PUI Audio, Inc. specializes in audio, haptic, and sensor solutions for OEMs across medical, industrial, security, and consumer sectors. The AT-20 belongs to their line of piezoelectric transducers, which are engineered for reliability and precise acoustic signaling in embedded systems where space and power constraints are critical design factors.

Replacement Considerations

Publicly confirmed substitute part numbers for the AT-20 are not available in the provided documentation. Verify compatibility with existing drivers if considering alternative frequencies or SPL ratings from other manufacturers.