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Product Detailed Parameters
- Description：BUZZER MAGNETIC 3V 0.34X0.34 SMD
- Series：AST
- Mfr：Mallory Sonalert Products Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Driver Circuitry：Transducer, Externally Driven
- Input Type：Peak-Peak Signal
- Frequency：2.7kHz
- Technology：Magnetic
- Operating Mode：Single Tone
- Duration：-
- Sound Pressure Level (SPL)：80dB @ 3V, 10cm
- Current - Supply：100mA
- Port Location：Top
- Operating Temperature：-20°C ~ 70°C
- Approval Agency：-
- Ratings：-
- Ingress Protection：-
- Mounting Type：Surface Mount
- Termination：Solder Pads
- Height - Seated (Max)：0.118" (3.00mm)
- Voltage - Rated：3 V
- Voltage Range：2 ~ 4V
- Size / Dimension：0.335" L x 0.335" W (8.50mm x 8.50mm)
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Overview
The AST0827MW-03BTRQ is a surface-mount magnetic buzzer manufactured by Mallory Sonalert Products Inc. It operates at a rated voltage of 3 V with a current consumption of 100 mA. The device produces a continuous single-tone sound at a frequency of 2.7 kHz. The acoustic output is specified as 80 dB SPL measured at 10 cm from the source. The component utilizes solder pads for board mounting and is designed for external driving applications.
Feature Summary
- Surface-mount construction with solder pad termination
- Magnetic transducer technology for audio indication
- Continuous single-tone operating mode
- Externally driven circuit design
Applications
- Industrial equipment status indication
- Consumer electronics alert signaling
- Transportation system audio warnings
- Medical device operational feedback
Procurement Notes
Verify the specific suffix BTRQ to confirm surface-mount tape-and-reel packaging requirements. Ensure the input driver circuit can supply the required 100 mA current at 3 V without exceeding thermal limits. Confirm that the 2.7 kHz frequency aligns with the target application's auditory detection needs. Check for RoHS compliance documentation if environmental regulations apply to the final assembly.
Selection Notes
Select this component when a low-profile surface-mount solution is required for audible alerts. The magnetic technology offers distinct acoustic characteristics compared to piezoelectric alternatives. Consider the 80 dB SPL level for environments requiring moderate volume. The externally driven nature allows for flexible control logic integration via microcontrollers or discrete drivers.
Part Context
This part belongs to the AST series of surface-mount buzzers from Mallory Sonalert. The series provides compact audio indicators suitable for PCB integration. The manufacturer specializes in industrial, medical, and consumer audio solutions. This specific model represents a standard single-tone option within their surface-mount portfolio.
Replacement Considerations
Direct substitutes must match the 3 V rating, 2.7 kHz frequency, and surface-mount package dimensions. Verify that alternative components support external driving and provide comparable SPL levels. Cross-reference pinout compatibility if the replacement uses different terminal configurations.
