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The BAY72TR is a small signal rectifier diode manufactured by Fairchild Semiconductor, now part of onsemi. It is designed for general-purpose switching and rectification applications in low-power circuits. The component features a single-phase, one-element configuration with a maximum average forward rectified current of 0.2A and a repetitive peak reverse voltage rating of 125V. It is supplied in a surface-mount package suitable for automated assembly processes.
Verify the obsolete status and discontinuation notice from Fairchild Semiconductor or onsemi before procurement planning. Confirm that the BAY72TR designation matches the specific tape-and-reel variant required for your manufacturing line. Ensure compatibility with existing design specifications given the product's discontinued lifecycle stage.
Select this component only if the design explicitly requires the 0.2A current and 125V voltage ratings defined in the original datasheet. Evaluate alternative active components due to the discontinued production status. Verify package footprint compatibility during the redesign phase to ensure seamless integration into existing PCB layouts.
The BAY72 series belongs to Fairchild Semiconductor's discrete power and analog signal processing portfolio. Following the acquisition of Fairchild by onsemi in September 2016, these products transitioned under the onsemi brand umbrella. The BAY72TR specifically denotes the tape-and-reel packaging format intended for high-volume surface-mount technology assembly lines.
Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official obsolescence notices for recommended alternatives or perform a full redesign using currently active small-signal diodes with matching electrical characteristics.