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Product Detailed Parameters
- Description：BUZZER MAGNETIC 5V 12MM TH
- Series：AT
- Mfr：PUI Audio, Inc.
- Package：Bulk
- 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)：85dB @ 5V, 10cm
- Current - Supply：45mA
- 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：5 V
- Voltage Range：3 ~ 8V
- Size / Dimension：0.472" Dia (12.00mm)
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Overview
The AT-1220-TWT-5V is an electromagnetic transducer manufactured by PUI Audio, Inc. It operates at a self-resonant frequency of 2.048 kHz with a rated voltage of 5 V. The device delivers a sound pressure level of 85 dBA and draws a current of 45 mA at an impedance of 47 Ohms. Designed for through-hole mounting, it features a round shape with a diameter of 12 mm and a height of 9.5 mm. The unit utilizes solder pin termination and supports a peak-peak signal input type in single tone operating mode.
Feature Summary
- Electromagnetic transducer design for audio signaling
- Through-hole mounting configuration with solder pins
- Single tone operating mode with peak-peak signal input
- Washable rating for durability
Applications
- Electronic alarm systems
- Audible status indicators
- Consumer appliance signaling
Procurement Notes
Verify the specific suffix requirements when ordering, as variants such as AT-1220-TWT-5V-R exist with RoHS compliance distinctions. Confirm that the non-RoHS version matches your assembly constraints. Ensure the through-hole footprint aligns with your PCB layout specifications before finalizing procurement.
Selection Notes
Select this component when a 2.048 kHz acoustic output is required within a compact 12 mm form factor. The 47 Ohm impedance and 45 mA current draw suit standard driver circuits. Consider the washable rating if the application involves cleaning processes. Verify voltage tolerance ranges against your power supply stability.
Part Context
This model belongs to the AT series of speakers and transducers from PUI Audio, Inc. The series includes various voltage and frequency configurations, such as the AT-1224-TWT-5V-2-R variant which operates at 2.4 kHz. These components are categorized under audio devices and electromagnetic transducers, serving as fundamental audible alerting elements in electronic assemblies.
Replacement Considerations
The AT-1220-TWT-5V-R serves as a compliant alternative within the same series. Other family members like the AT-1224-TWT-5V-2-R offer different resonant frequencies. Cross-reference impedance and physical dimensions when substituting with similar electromagnetic buzzers from other manufacturers.
