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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：2.731kHz
- Technology：Magnetic
- Operating Mode：Single Tone
- Duration：-
- Sound Pressure Level (SPL)：85dB @ 3V, 10cm
- Current - Supply：80mA
- Port Location：Side
- Operating Temperature：-20°C ~ 70°C
- Approval Agency：-
- Ratings：-
- Ingress Protection：-
- Mounting Type：Surface Mount
- Termination：Solder Pads
- Height - Seated (Max)：0.157" (4.00mm)
- 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-03ATRQ is a surface mount magnetic buzzer manufactured by Mallory Sonalert Products Inc. It operates at a nominal voltage of 3V with a current consumption of 80mA. The device produces an acoustic output of 85dB measured at a distance of 10cm and functions at a frequency of 2.731kHz. Designed for board mounting via solder pads, this component is supplied in tape and reel packaging containing 1000 pieces per unit.
Feature Summary
- Externally driven magnetic transducer technology
- Surface mount construction compatible with automated assembly processes
- Solder pad termination for direct PCB integration
Applications
- Compact electronic alarm systems
- Board-level audio indication circuits
- Consumer electronics requiring low-profile sounders
Procurement Notes
Verify the specific suffix ATRQ to confirm the 1000-piece tape and reel packaging configuration. Ensure the receiving facility supports surface mount handling procedures for small form factor components. Confirm that the 3V operating voltage aligns with the target circuit design before procurement.
Selection Notes
Select this component when a low-profile, externally driven solution is required for space-constrained designs. The magnetic technology offers distinct characteristics compared to piezoelectric alternatives. Verify that the 80mA current draw is supported by the power supply rails in the final application environment.
Part Context
This part belongs to the AST series of surface mount buzzers from Mallory Sonalert. It utilizes magnetic transduction rather than piezoelectric elements. The product is designed for high-volume manufacturing through its tape and reel delivery format, distinguishing it from through-hole or panel-mount variants in the manufacturer's portfolio.
Replacement Considerations
Direct replacements must match the 3V rating, 80mA current draw, and 2.731kHz frequency. Surface mount footprint compatibility is critical. Verify that alternative magnetic buzzers provide comparable acoustic output levels at the specified measurement distance.
