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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：Washable
- Ingress Protection：-
- Mounting Type：Through Hole
- Termination：PC Pins
- Height - Seated (Max)：0.394" (10.00mm)
- 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-R is an electromagnetic transducer manufactured by PUI Audio, Inc. It operates at a self-resonant frequency of 2.048 kHz with a sound pressure level of 85 dBA. The device features a 47 Ohm impedance and a current rating of 45 mA. Designed for through-hole PCB mounting, it has a round shape with a 12 mm diameter and a height of 9.5 mm. The unit supports a voltage range of 3 V to 8 V and functions within a temperature range of -20°C to +70°C.
Feature Summary
- Externally driven electromagnetic transducer design
- Single tone operating mode capability
- Washable construction for durability
Applications
- Electronic equipment status indication
- Audible alert systems in consumer devices
- Industrial control panel signaling
Procurement Notes
Verify the specific suffix configuration against the manufacturer datasheet to ensure compatibility with required drive circuits. Confirm that the through-hole pin spacing matches the target printed circuit board layout. Check RoHS compliance documentation if environmental regulations apply to the final assembly process.
Selection Notes
Select this component when a compact, externally driven electromagnetic buzzer is required for single-tone applications. The 12 mm form factor suits space-constrained designs needing moderate acoustic output. Ensure the driving circuit can supply the specified 45 mA current at the operating voltage without exceeding thermal limits.
Part Context
This part belongs to the AT series of electromagnetic transducers from PUI Audio, Inc. The series offers various voltage and frequency options for different audio signaling needs. The AT-1220 variant specifically targets 2.048 kHz applications, distinguishing it from other frequencies in the lineup such as the 2.4 kHz AT-1224 model.
Replacement Considerations
The AT-1220-TWT-12V-2-R is a documented substitute offering similar physical dimensions but operating at 12 V. Verify that the system power supply and drive circuitry support the higher voltage requirement before substitution.
