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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：2.048kHz
- Technology：Electromechanical/Magnetic
- Operating Mode：Single Tone
- Duration：-
- Sound Pressure Level (SPL)：73dB @ 1.5V, 10cm
- Current - Supply：10mA
- Port Location：Top
- Operating Temperature：-20°C ~ 70°C
- Approval Agency：-
- Ratings：-
- Ingress Protection：-
- Mounting Type：Through Hole
- Termination：PC Pins
- Height - Seated (Max)：0.224" (5.70mm)
- Voltage - Rated：1.5 V
- Voltage Range：1 ~ 3V
- Size / Dimension：0.472" Dia (12.00mm)
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Overview
The AT-1220-TT-5-R is an externally driven electromagnetic transducer manufactured by PUI Audio, Inc. It operates at a self-resonant frequency of 2.048 kHz with a sound pressure level of 73 dBA measured at 1.5V and 10cm distance. The component requires a rated voltage of 1.5 V and draws a current of 10 mA. It features through-hole mounting with PC pins and has a compact form factor measuring 12 mm in diameter and 8.5 mm in height.
Feature Summary
- Externally driven electromagnetic design for flexible signal integration
- Through-hole construction with PC pin termination for standard PCB assembly
- Compact cylindrical geometry suitable for space-constrained enclosures
Applications
- General purpose audible alerts in consumer electronics
- Status indication in portable battery-operated devices
- Simple alarm systems requiring low power consumption
Procurement Notes
Verify the specific suffix configuration against the manufacturer datasheet to ensure correct voltage and acoustic specifications. Confirm that the through-hole package dimensions align with the target PCB footprint. Check RoHS compliance status if required by regional regulations. Ensure the driving circuit can supply the specified 10 mA current at 1.5 V without exceeding thermal limits.
Selection Notes
Select this component when a low-voltage, low-current electromagnetic solution is required for audible signaling. The 1.5 V rating makes it suitable for single-cell battery applications. Compare the 73 dBA output against louder piezoelectric alternatives if higher volume is needed. Consider the 2.048 kHz frequency for optimal human hearing sensitivity in alert tones.
Part Context
This part belongs to the AT series of electromagnetic transducers from PUI Audio, Inc. These components are distinct from piezoelectric buzzers as they require an external oscillator or microcontroller to drive the coil. The series offers various voltage and frequency options to suit different audio requirements and power constraints in embedded systems.
Replacement Considerations
Direct substitutes include other 1.5 V electromagnetic transducers with similar frequency and SPL ratings. Verify mechanical compatibility before swapping, as housing dimensions may vary between manufacturers. Ensure the replacement maintains the same polarity and pinout configuration for seamless integration.
