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Product Detailed Parameters
- Description：BUZZER PIEZO 12V 33.6MM TH
- Series：AT
- Mfr：PUI Audio, Inc.
- Package：Bulk
- Driver Circuitry：Transducer, Externally Driven
- Input Type：Peak-Peak Signal
- Frequency：2.5kHz
- Technology：Piezo (with Feedback)
- Operating Mode：Single Tone
- Duration：-
- Sound Pressure Level (SPL)：85dB @ 12V, 10cm
- Current - Supply：7mA
- Port Location：Top
- Operating Temperature：-30°C ~ 85°C
- Approval Agency：-
- Ratings：Washable
- Ingress Protection：-
- Mounting Type：Through Hole
- Termination：PC Pins
- Height - Seated (Max)：0.606" (15.40mm)
- Voltage - Rated：12 V
- Voltage Range：3 ~ 28V
- Size / Dimension：1.323" Dia (33.60mm)
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Overview
The PUI Audio AT-3425-TWT-R is a piezoelectric transducer designed for board mount applications. It features a round shape with solder pin termination and ABS cone material. The component operates within a temperature range of -20°C to +60°C. Key electrical specifications include a resonant frequency of 2.5 kHz, an 85 dBA sound pressure level, and a minimum supply voltage of 3 VDC. It has a capacitance of 21,000 pF and functions as a buzzer.
Feature Summary
- Piezoelectric transducer technology for audio indication
- Through-hole mounting configuration with solder pins
- ABS cone construction for durability
- Operates as a buzzer with defined voltage requirements
Applications
- Industrial control panels
- Medical equipment indicators
- Security system alerts
Procurement Notes
Verify the specific datasheet version for the AT-3425-TWT-R to confirm RoHS compliance status and REACH SVHC declarations before integration. Ensure the driving circuit supports the minimum 3 VDC requirement and accounts for the 21,000 pF capacitance. Confirm mechanical fitment for the through-hole package style on the target PCB layout.
Selection Notes
Select this component when a piezoelectric buzzer with a 2.5 kHz resonant frequency is required. It is suitable for designs needing 85 dBA output at low voltage. Consider the through-hole format if surface mount options are not feasible. Verify that the operating environment stays within the specified -20°C to +60°C range.
Part Context
This part belongs to the AT series of piezoelectric transducers from PUI Audio. The series offers various frequencies and sound pressure levels for different alerting needs. The AT-3425-TWT-R specifically targets applications requiring a 2.5 kHz tone with standard through-hole assembly methods.
Replacement Considerations
Check for direct substitutes in the same AT series or other PUI Audio piezo lines with matching 2.5 kHz resonance and 85 dBA SPL. Ensure replacement parts maintain the through-hole pin configuration and compatible voltage ranges.
FAQ
What is the resonant frequency of the AT-3425-TWT-R?
The resonant frequency is 2.5 kHz.
What is the minimum supply voltage for operation?
The minimum supply voltage is 3 VDC.
What type of termination does this transducer use?
It uses solder pin termination for through-hole mounting.
