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BUT11ATU is listed in the Single Bipolar Transistors range at ChipApex. The manufacturer field lists Fairchild Semiconductor. Its product description is TRANS NPN 450V 5A TO-220-3. Review the specifications below when checking this part for your BOM.
The BUT11ATU is an NPN silicon power transistor manufactured by Fairchild Semiconductor. It features a collector-emitter breakdown voltage of 450 V and a maximum continuous collector current of 5 A. The device is housed in a TO-220-3 through-hole package with the case connected to the drain. It is designed for high-voltage power switching applications.
Verify component authenticity and datasheet revision status due to discontinuation history. Confirm package integrity and pin configuration against original specifications. Check for lead-free compliance markers if required by project standards. Ensure storage conditions maintain device reliability prior to assembly.
Select this component when a 450 V NPN transistor with 5 A current capacity is required. Consider the TO-220-3 package for thermal management needs. Evaluate alternative high-voltage NPN devices if current availability is constrained or if different pinout configurations are necessary for the specific circuit layout.
This part belongs to the BUT11 series of NPN silicon transistors from Fairchild Semiconductor. It shares characteristics with the BUT11TU variant but is distinguished by its specific packaging and manufacturing batch details. The series is engineered for general-purpose high-voltage switching tasks in industrial and consumer electronics.
Public confirmed substitutes include BUT11TU. Verify electrical parameters and physical dimensions match before integration. Cross-reference datasheets for any minor differences in thermal resistance or pin assignments.
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