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Product Detailed Parameters
- Description：BUZZER PIEZO 10V 21.5X18MM TH
- Series：AT
- Mfr：PUI Audio, Inc.
- Package：Tray
- Driver Circuitry：Transducer, Externally Driven
- Input Type：Peak-Peak Signal
- Frequency：3kHz
- Technology：Piezo
- Operating Mode：Single Tone
- Duration：-
- Sound Pressure Level (SPL)：88dB @ 10V, 10cm
- Current - Supply：3.5mA
- Port Location：Top
- Operating Temperature：-20°C ~ 60°C
- Approval Agency：-
- Ratings：-
- Ingress Protection：-
- Mounting Type：Through Hole
- Termination：PC Pins
- Height - Seated (Max)：0.374" (9.50mm)
- Voltage - Rated：10 V
- Voltage Range：1 ~ 30V
- Size / Dimension：0.846" L x 0.709" W (21.50mm x 18.00mm)
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Overview
The AT-1830-TT-R is an externally driven piezoelectric transducer manufactured by PUI Audio, Inc. It features a rectangular form factor with dimensions of 21.5 mm in length and 18 mm in width. The device operates at a resonant frequency of 3 kHz and delivers a sound pressure level of 88 dBA when driven at 10 V. Electrical characteristics include a current rating of 3.5 mA at the rated voltage. It utilizes through-hole solder pin termination for PCB mounting.
Feature Summary
- Externally driven piezoelectric design for flexible signal integration
- Rectangular housing suitable for compact panel or board installations
- Through-hole solder pin termination for secure PCB attachment
Applications
- Audible alerts in industrial control panels
- Status indicators in consumer electronics
- Security system alarms
Procurement Notes
Verify the specific datasheet version to confirm RoHS compliance status and exact mechanical tolerances before finalizing the design. Ensure the driving circuit can supply the required 3.5 mA current at 10 V to achieve the specified acoustic output. Confirm that the through-hole footprint matches the target PCB layout constraints.
Selection Notes
Select this component when a high-volume, cost-effective audible indicator is required for standard voltage applications. The 3 kHz frequency provides a distinct alert tone suitable for human perception. Consider the 21.5 x 18 mm size against available enclosure space. Compare against other AT-series models if different frequencies or voltage ratings are needed.
Part Context
This part belongs to the AT series of audio transducers from PUI Audio, Inc., a manufacturer specializing in sound solutions for medical, industrial, and consumer markets. The series includes various electromagnetic and piezoelectric devices designed for reliable performance in diverse environments.
Replacement Considerations
The AT-1820-TWT-6V-R is an electromagnetic alternative but differs in drive type and voltage. Direct functional substitutes within the same piezo family should be verified via official cross-reference lists.
