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Product Detailed Parameters
- Description：BUZZER PIEZO 12V 16.3MM TH
- Series：AT
- Mfr：PUI Audio, Inc.
- Package：Tray
- Driver Circuitry：Transducer, Externally Driven
- Input Type：Peak-Peak Signal
- Frequency：3.4kHz
- Technology：Piezo
- Operating Mode：-
- Duration：-
- Sound Pressure Level (SPL)：90dB @ 12V, 10cm
- Current - Supply：12mA
- Port Location：Top
- Operating Temperature：-30°C ~ 70°C
- Approval Agency：-
- Ratings：-
- Ingress Protection：-
- Mounting Type：Through Hole
- Termination：PC Pins
- Height - Seated (Max)：0.406" (10.30mm)
- Voltage - Rated：12 V
- Voltage Range：5 ~ 20V
- Size / Dimension：0.642" Dia (16.30mm)
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Overview
The AT-2428-TT-R is an externally driven piezoelectric transducer manufactured by PUI Audio, Inc. Designed for through-hole mounting, this component operates at a rated voltage of 12 V with a current draw of 12 mA. It produces a sound pressure level of 90 dBA at 12 V measured from a distance of 10 cm. The self-resonant frequency is specified at 3.4 kHz. The device features PC pin termination and has physical dimensions of approximately 23.2 mm in length and width, with a height of 9.8 mm.
Feature Summary
- Externally driven piezoelectric technology for reliable acoustic output
- Through-hole PC pin termination for standard PCB integration
- High sound pressure level generation at rated operating voltage
Applications
- General purpose audible alarms
- Status indication in electronic equipment
- Security system sirens
Procurement Notes
Verify the specific suffix TT against the manufacturer's datasheet to confirm terminal type and lead configuration. Ensure the driving circuit can supply the required 12 mA current at 12 V. Confirm that the 3.4 kHz resonant frequency aligns with the target application's acoustic requirements. Check RoHS compliance status via the official documentation before finalizing procurement.
Selection Notes
Select this component when a high-volume, cost-effective piezo buzzer is required for through-hole assembly. The 12 V rating suits systems powered by standard logic or relay outputs. Consider the 90 dBA SPL for environments requiring clear auditory alerts. The 3.4 kHz frequency provides a distinct tone suitable for human hearing. Verify mechanical clearance for the 23.2 mm diameter footprint.
Part Context
This part belongs to the PUI Audio AT series of piezoelectric transducers. These components are widely used in industrial and consumer electronics for audio signaling. The AT series offers various voltage and frequency options to suit different design constraints. The AT-2428-TT-R specifically targets applications needing robust performance at 12 V.
Replacement Considerations
Check for direct substitutes within the AT series with matching voltage and frequency. Verify that any replacement maintains the same through-hole pin spacing and overall dimensions. Ensure the alternative component meets the same sound pressure level requirements.
