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The BD240CTU-FS is a PNP epitaxial silicon power transistor manufactured by Fairchild Semiconductor. It is housed in a TO-220AB package with three terminals. The device is designed for medium power linear and switching applications, serving as the complementary counterpart to the BD239 series. Key electrical ratings include a collector-emitter voltage of 60V, a continuous collector current of 6A, and a maximum junction temperature of 150°C.
Verify that the component matches the specific BD240CTU-FS designation from Fairchild Semiconductor. Confirm the package type is TO-220AB and the polarity is PNP. Ensure the datasheet aligns with the 60V and 6A ratings. Check for lead-free compliance if required by assembly specifications.
Select this component when a PNP power transistor is needed to complement an NPN BD239 device. Ensure the application requires a 60V collector-emitter voltage rating and up to 6A continuous current. Verify thermal management capabilities for the TO-220 package are sufficient for the intended dissipation levels.
This part belongs to the BD240/A/B/C family of medium power transistors. These devices are engineered for robust performance in audio and general-purpose power stages. The 'C' suffix typically denotes a specific gain bin within the product line.
Public confirmed substitute part numbers: BD240C, BD240CTU.