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PK-20A38PQ is listed in the Alarms, Buzzers, And Sirens range at ChipApex. The manufacturer field lists Mallory Sonalert Products Inc.. Its product description is BUZZER PIEZO 12V 23MM TH. Review the specifications below when checking this part for your BOM.
The PK-20A38PQ is a piezoelectric buzzer from Mallory Sonalert Products Inc., designed for board mounting. It operates on a DC input voltage range of 3 to 24VDC. The device generates a constant tone at a frequency of 3.8kHz with a sound pressure level of 95dB. Physical dimensions are 23mm x 18mm, utilizing PC pin termination.
Verify the specific voltage rating and acoustic requirements against the official datasheet before procurement. Confirm that the 3-24VDC operating range aligns with the target system power supply. Ensure the board mounting footprint matches the PCB design specifications. Check for any regional compliance certifications required for the end application.
Select this component when a compact, high-decibel indicator is needed for space-constrained designs. The wide voltage tolerance simplifies integration across various power domains. Consider the 3.8kHz frequency for optimal human audibility in noisy environments. Evaluate thermal constraints if the device will operate continuously near maximum voltage limits.
This part belongs to the Sonalert series of piezoelectric buzzers. It is manufactured by Mallory Sonalert Products Inc., a specialist in audio signaling devices. The product line focuses on robust, internally driven indicators for industrial and commercial applications.
The PK-20A38PQ operates within a DC voltage range of 3V to 24V.
The device produces a constant tone output.
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