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Product Detailed Parameters
- Description：BUZZER MAGN 3V 10X10MMW 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)：87dB @ 3V, 10cm
- Current - Supply：80mA
- Port Location：Side
- Operating Temperature：-20°C ~ 85°C
- Approval Agency：-
- Ratings：-
- Ingress Protection：-
- Mounting Type：Surface Mount
- Termination：Solder Pads
- Height - Seated (Max)：0.126" (3.20mm)
- Voltage - Rated：3 V
- Voltage Range：2.5 ~ 4.5V
- Size / Dimension：0.394" L x 0.394" W (10.00mm x 10.00mm)
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Overview
The AST1027MW-03TRQ is an externally driven magnetic buzzer manufactured by Mallory Sonalert Products Inc. Designed for surface mount applications, this transducer operates within a voltage range of 2.5 to 4.5 VAC. It produces a sound pressure level of 87 dB at 3V measured at 10 cm and functions at a frequency of 2.7 kHz. The unit features a compact 10.0 x 10.0 mm footprint with a height of 3.2 mm and utilizes solder pads for termination. It is supplied in tape-and-reel packaging containing 800 pieces per reel.
Feature Summary
- Externally driven magnetic transducer technology
- Surface mount design for automated assembly
- Compact form factor suitable for space-constrained PCBs
Applications
- Portable electronic device audio signaling
- Consumer appliance status indicators
- Industrial control panel alerts
Procurement Notes
Verify the specific suffix configuration against the manufacturer's current datasheet to ensure compatibility with required voltage and acoustic specifications. Confirm that the tape-and-reel quantity matches production line requirements. Ensure soldering profiles are compatible with surface mount components to maintain acoustic performance and mechanical integrity during assembly processes.
Selection Notes
Select this component when a low-profile, surface-mount magnetic buzzer is required for external drive circuits. Consider the 87 dB output and 2.7 kHz frequency for audible alert applications. Evaluate the 2.5-4.5 VAC operating range against available power supplies. Compare physical dimensions against board real estate constraints before finalizing the design integration.
Part Context
This part belongs to the AST series of surface mount buzzers from Mallory Sonalert. It serves as a compact audio signaling solution replacing through-hole alternatives in modern electronics manufacturing. The magnetic transducer type offers distinct acoustic characteristics compared to piezoelectric variants within the same product family.
Replacement Considerations
Consult official substitution guides for equivalent surface mount magnetic buzzers. Verify pinout compatibility and acoustic output levels when considering alternative manufacturers or package variations.
