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MM033802-4 is listed in the Microphones range at ChipApex. The manufacturer field lists DB Unlimited. Its product description is MIC MEMS ANALOG OMNI -38DB. Review the specifications below when checking this part for your BOM.
The MM033802-4 is a piezoelectric buzzer manufactured by DB Unlimited. This component utilizes a ceramic disc to generate sound when an alternating current voltage is applied, causing mechanical vibration. It is designed for audible alert applications in consumer electronics and industrial devices. The unit operates on standard DC drive signals converted to AC internally or externally depending on the specific driver circuit integration.
Verify the exact electrical specifications including operating frequency and driving voltage against the official datasheet before procurement. Ensure compatibility with the host system's drive circuitry. Confirm physical dimensions and mounting requirements match the design constraints. Check for any specific environmental ratings if the application involves extreme temperatures or humidity.
Select this component based on required acoustic output levels and available drive voltage. Consider the operating frequency range to ensure it matches the desired audible tone. Evaluate the physical size constraints of the enclosure. Verify that the driving circuit can provide the necessary current pulses for optimal performance without exceeding the component's maximum ratings.
DB Unlimited specializes in piezoelectric components such as buzzers, transducers, and sensors. The MM series represents their line of compact piezo buzzers designed for various electronic applications. These components are known for reliability and consistent performance in mass-produced electronics.
Consult official substitution guides from DB Unlimited for verified equivalent part numbers. Ensure any replacement maintains identical electrical parameters and physical dimensions. Generic substitutes may not offer the same acoustic performance or longevity.
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