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Product Detailed Parameters
- Description：BUZZER MAGNETIC 1.5V 12MM TH
- Series：AT
- Mfr：PUI Audio, Inc.
- Package：Tray
- Driver Circuitry：Transducer, Externally Driven
- Input Type：Peak-Peak Signal
- Frequency：2.8kHz
- Technology：Electromechanical/Magnetic
- Operating Mode：Single Tone
- Duration：-
- Sound Pressure Level (SPL)：85dB @ 1.5V, 10cm
- Current - Supply：40mA
- Port Location：Top
- Operating Temperature：-30°C ~ 70°C
- Approval Agency：-
- Ratings：Washable
- Ingress Protection：-
- Mounting Type：Through Hole
- Termination：PC Pins
- Height - Seated (Max)：0.413" (10.50mm)
- Voltage - Rated：1.5 V
- Voltage Range：1 ~ 1.7V
- Size / Dimension：0.472" Dia (12.00mm)
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Overview
The AT-1228-TT-R is an externally driven electromagnetic transducer manufactured by PUI Audio. It features a through-hole mounting style with solder pin terminations and operates at a resonant frequency of approximately 2.6 kHz to 2.8 kHz. The device delivers a sound pressure level of 85 dBA when driven by a 1.5 Vpp signal. Constructed with a polybutylene terephthalate (PBT) housing, it measures 12 mm in width and length, with a height of 12 mm.
Feature Summary
- Electromagnetic transduction mechanism for audio signaling
- Through-hole PCB mounting configuration
- Polybutylene terephthalate (PBT) structural housing
Applications
- Microcontroller-based embedded systems
- General purpose audio indication
- Alarm and alert circuits
Procurement Notes
Verify the specific datasheet version as specifications may vary between sources. Confirm that the 1.5Vpp drive requirement aligns with your circuit design. Ensure through-hole footprint compatibility with your PCB layout. Check RoHS compliance documentation if required for your region. Validate the operating temperature range against your environmental conditions.
Selection Notes
Select this component for applications requiring a low-profile, through-hole electromagnetic buzzer. It is suitable for designs needing external driving signals rather than integrated oscillators. Consider the 85 dBA output level for audible alerts in moderate noise environments. The PBT material offers durability for standard industrial or consumer electronics assemblies.
Part Context
This part belongs to PUI Audio's line of plug-and-play buzzers. It is categorized under electromechanical transducers designed for board-mount installation. The series typically includes variants with different frequencies and sound pressure levels to suit various acoustic requirements in electronic devices.
Replacement Considerations
Direct substitutes are not explicitly confirmed in public documentation. Similar through-hole electromagnetic transducers from other manufacturers may require verification of mounting dimensions, electrical characteristics, and acoustic performance before integration.
