AT-138

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

SKU:aae228cf6e30 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：-
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-138

Overview

The AT-138 is an externally driven piezoelectric transducer manufactured by PUI Audio, Inc. It features board mount installation with solder pin termination. The device operates at a resonant frequency of 2800 Hz and delivers a sound pressure level of 90 dBA when driven by a 12Vpp signal. This component belongs to the AT series of audio devices.

Feature Summary

Externally driven piezoelectric transducer design
Board mount configuration with solder pin connections

Applications

Alarm systems
Buzzer applications
Siren circuits

Procurement Notes

Verify current availability status as the AT-138 is listed as obsolete or discontinued in multiple distributor records. Confirm RoHS compliance details directly with the manufacturer or authorized sources, as some listings indicate lead content. Ensure replacement components meet identical electrical specifications for seamless integration into existing designs.

Selection Notes

Select this component for applications requiring a simple, externally driven piezo transducer. Note that it is designed for through-hole mounting on printed circuit boards. Engineers should verify drive voltage requirements against the 12Vpp specification to ensure optimal acoustic output without damaging the element.

Part Context

PUI Audio, Inc. specializes in innovative audio components including indicators, transducers, and speakers. The AT-138 is part of their broader portfolio of audio devices, serving industries such as medical, industrial, and security sectors. The company emphasizes total sound solutions with over four decades of industry experience.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users must identify alternative piezo transducers with matching 2800 Hz frequency and 90 dBA SPL characteristics manually.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.