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Product Detailed Parameters
- Description：BUZZER MAGN 3V 4X4MM W TH
- Series：AST
- Mfr：Mallory Sonalert Products Inc.
- Package：Bulk
- Driver Circuitry：Transducer, Externally Driven
- Input Type：Peak-Peak Signal
- Frequency：4kHz
- Technology：Magnetic
- Operating Mode：-
- Duration：-
- Sound Pressure Level (SPL)：70dB @ 3V, 10cm
- Current - Supply：110mA
- Port Location：Top
- Operating Temperature：-30°C ~ 70°C
- Approval Agency：-
- Ratings：-
- Ingress Protection：-
- Mounting Type：Through Hole
- Termination：Solder Pads
- Height - Seated (Max)：0.087" (2.20mm)
- Voltage - Rated：3 V
- Voltage Range：2 ~ 4V
- Size / Dimension：0.157" L x 0.157" W (4.00mm x 4.00mm)
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Overview
The AST0440MFD-03Q is a magnetostrictive buzzer manufactured by Mallory Sonalert Products Inc. It operates at a rated voltage of 3 V with a peak-to-peak input signal type. The component features an externally driven transducer driver circuitry and utilizes magnetic actuation for sound generation. Designed for surface-mount applications, it offers a compact form factor suitable for space-constrained electronic assemblies requiring reliable audio alerting capabilities.
Feature Summary
- Utilizes magnetostrictive technology for robust sound production
- Externally driven transducer design allows flexible integration
- Compact surface-mount package facilitates automated PCB assembly
Applications
- Electronic device status indicators
- Consumer appliance alert systems
- Portable equipment audio signaling
Procurement Notes
Verify the specific suffix 'Q' against the manufacturer's current datasheet to confirm compliance details and material specifications. Ensure the ordering quantity aligns with the supplier's standard packaging configurations. Confirm that the external drive circuitry matches the required peak-to-peak signal parameters for optimal performance.
Selection Notes
Select this component when a compact, magnetically actuated buzzer is required for low-voltage applications. The externally driven nature necessitates an external oscillator or microcontroller interface. Consider the physical dimensions and mounting requirements during the mechanical design phase to ensure proper fit within the enclosure.
Part Context
This part belongs to the AST series of audio indicators from Mallory Sonalert. The series includes various piezoelectric and magnetostrictive options designed for different acoustic and spatial requirements. The AST0440MFD-03Q specifically addresses needs for small-footprint, high-reliability audio alerts in consumer and industrial electronics.
Replacement Considerations
Consult the official Mallory Sonalert cross-reference guide for verified substitutes. Ensure any replacement maintains the same operating voltage, frequency response, and mechanical mounting constraints.
