KA5H0365RTU

AC DC Converters, Offline Switchers Overview

The KA5H0365RTU is an offline switching regulator IC from the FPS series, designed for AC-DC power supplies. It integrates a high-voltage SenseFET and a current-mode PWM controller in a TO-220F-4L package. Key electrical parameters include a 650V breakdown voltage, 100kHz fixed switching frequency, and a maximum output current of 12A. The device operates with a supply voltage range of 9V to 30V and supports flyback and forward topologies.

AC DC Converters, Offline Switchers Feature Summary

• Integrates high-voltage SenseFET and current-mode PWM controller
• Includes pulse-by-pulse over-current limiting protection
• Features internal thermal shutdown mechanism
• Supports automatic restart mode after fault conditions

AC DC Converters, Offline Switchers Applications

• Offline SMPS for VCR and SVR systems
• Power adapters for DVD players and cameras
• Switching power supplies for printers and fax machines
• AC-DC converters for set-top boxes (STB)

AC DC Converters, Offline Switchers Procurement Notes

Verify component authenticity through authorized onsemi distributors or certified suppliers. Confirm the specific suffix matches the required package variant. Request original manufacturer documentation to validate RoHS compliance and traceability records before finalizing procurement decisions.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring integrated high-voltage switching with minimal external components. Ensure the application topology supports the specified 100kHz frequency. Verify that the load requirements align with the 12A peak current capability and that the operating temperature range fits the system environment.

AC DC Converters, Offline Switchers Part Context

This part belongs to the Fairchild Power Switch (FPS) family, originally developed by Fairchild Semiconductor and now managed by onsemi. The series is characterized by its ability to reduce bill-of-materials costs by combining power and control functions into a single monolithic package suitable for through-hole mounting.

AC DC Converters, Offline Switchers Replacement Considerations

Compatible substitutes within the same series include KA5M0365R (67kHz) and KA5L0365R (50kHz). These variants share identical pinouts and protection features but differ in their fixed operating frequencies. Verify thermal performance and loop compensation requirements when substituting different frequency models.