KA5Q0565RTYDTU

AC DC Converters, Offline Switchers Overview

The KA5Q0565RTYDTU is a Fairchild Power Switch (FPS) designed for offline switch-mode power supplies. It integrates a high-voltage power MOSFET with a current-mode controller in a single package. The device utilizes Green Mode technology to optimize efficiency and reduce electromagnetic interference through variable frequency control and avalanche ruggedness. It operates within a temperature range of -25 °C to +85 °C and is housed in a TO-220 package.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a high-voltage power MOSFET with a current-mode controller for minimal external component count
• Employs Green Mode technology for low electromagnetic interference and high efficiency
• Features an internally avalanche-rugged sense FET for enhanced reliability

AC DC Converters, Offline Switchers Applications

• Offline switch-mode power supplies
• Cost-effective quasi-resonant converter designs
• C-TV power supply systems

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'YDTU' against official Fairchild or onsemi documentation, as standard listings often reference 'KA5Q0565RT'. Confirm RoHS compliance status and pinout compatibility with the target PCB footprint. Ensure the supplier provides valid traceability documents for this integrated power switch variant.

AC DC Converters, Offline Switchers Selection Notes

Select this component for applications requiring a compact solution with reduced bill-of-materials due to integrated switching and control functions. It is suitable for designs prioritizing cost-effectiveness and EMI reduction in consumer electronics. Verify that the thermal management strategy supports the specified operating temperature range for the intended enclosure.

AC DC Converters, Offline Switchers Part Context

This part belongs to the Fairchild Power Switch family, which combines power and control technologies. The series is engineered for off-line SMPS applications, offering a robust platform for quasi-resonant operation. It represents a consolidation of discrete components into a single reliable unit for power conversion tasks.

AC DC Converters, Offline Switchers Replacement Considerations

Direct substitutes include the KA5Q0565RT and FSQ0565RSLDTU. Verify pin compatibility and electrical specifications before substitution. Note that manufacturer transitions from Fairchild to onsemi may affect ordering codes.