AT-1420-ST-R

$1.21

Description：BUZZER MAGNETIC 1.5V 13.8X12 TH
Series：AT
Mfr：PUI Audio, Inc.
Package：Tray

SKU:02b205ec95df Category: Alarms, Buzzers, and Sirens Brand: PUI Audio, Inc.

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Product introduction

Product Detailed Parameters

Description：BUZZER MAGNETIC 1.5V 13.8X12 TH
Series：AT
Mfr：PUI Audio, Inc.
Package：Tray
Driver Circuitry：Transducer, Externally Driven
Input Type：Peak-Peak Signal
Frequency：2.048kHz
Technology：Electromechanical/Magnetic
Operating Mode：Single Tone
Duration：-
Sound Pressure Level (SPL)：80dB @ 1.5V, 10cm
Current - Supply：70mA
Port Location：Side
Operating Temperature：-20°C ~ 70°C
Approval Agency：-
Ratings：-
Ingress Protection：-
Mounting Type：Through Hole
Termination：PC Pins
Height - Seated (Max)：0.315" (8.00mm)
Voltage - Rated：1.5 V
Voltage Range：1 ~ 3V
Size / Dimension：0.543" L x 0.472" W (13.80mm x 12.00mm)

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AT-1420-ST-R

Overview

The AT-1420-ST-R is an externally driven electromagnetic transducer manufactured by PUI Audio. It operates at a resonant frequency of 2.048 kHz with a sound pressure level of 80 dBA measured at 1.5V and 10cm distance. The device requires a drive voltage of 1.5 Vpp and draws a maximum current of 70 mA. Its electrical impedance is 6.5 Ohms. The component utilizes through-hole mounting with solder pin termination and features compact dimensions of 13.8 mm in length, 12 mm in width, and 7.5 mm in height.

Feature Summary

Externally driven electromagnetic design for flexible signal integration
High acoustic output efficiency relative to low power consumption
Compact form factor suitable for space-constrained enclosures

Applications

Consumer electronics audio indicators
Industrial control panel signaling
Medical device status alerts

Procurement Notes

Verify the specific ordering suffix and mechanical dimensions against the official PUI Audio datasheet before finalizing procurement. Confirm that the required drive circuitry supports the specified 1.5 Vpp voltage and 70 mA current limits to ensure optimal performance and longevity of the transducer.

Selection Notes

Select this component when a high-decibel audible alert is required from a minimal footprint. The 2.048 kHz frequency provides distinct audibility in noisy environments. Ensure the host system can supply the necessary peak-to-peak voltage without exceeding the current rating to prevent thermal damage or distortion.

Part Context

This part belongs to the PUI Audio transducer portfolio, which specializes in piezoelectric and electromagnetic audio solutions. The manufacturer leverages decades of experience to provide components for medical, industrial, and consumer sectors. This specific model represents their standard electromagnetic buzzer technology optimized for reliability and clear tonal output.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Engineers must evaluate alternative electromagnetic transducers based on matching frequency, SPL, and physical mounting constraints if this component becomes unavailable.