PKS604YN

AC DC Converters, Offline Switchers Overview

The PKS604YN is a PeakSwitch family offline switcher IC manufactured by Power Integrations. It integrates a high-voltage power MOSFET and control circuitry for flyback converter topologies. The device operates with an internal switching frequency of 277 kHz and supports a maximum duty cycle of 65%. It features a 700 V breakdown voltage rating and functions within a junction temperature range of -40°C to +150°C. The component utilizes a TO-220-7C package for through-hole mounting.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a high-voltage power MOSFET and control logic into a single monolithic chip
• Supports flyback topology operation with fixed switching frequency
• Includes built-in fault protection mechanisms such as overcurrent, overload, and overtemperature sensing

AC DC Converters, Offline Switchers Applications

• Offline AC/DC power supplies
• Flyback converter designs
• General-purpose isolated power conversion

AC DC Converters, Offline Switchers Procurement Notes

Verify the current manufacturing status of this part number before procurement planning. Official documentation indicates that the PKS604YN has been discontinued and is no longer in production. Sourcing should focus on identifying valid replacement components or alternative stock sources rather than direct new unit orders from the manufacturer.

AC DC Converters, Offline Switchers Selection Notes

Select this component only if legacy design compatibility is required. Due to its discontinued status, new designs should utilize modern equivalents from the same manufacturer. Ensure the selected replacement maintains the necessary voltage ratings, thermal performance, and pinout configuration for the existing PCB layout.

AC DC Converters, Offline Switchers Part Context

The PKS604YN belongs to the PeakSwitch series of integrated offline switchers. This family combines the controller and power switch to reduce external component count and simplify design. The specific model utilizes a TO-220-7C package, distinguishing it from surface-mount variants within the broader product line.

AC DC Converters, Offline Switchers Replacement Considerations

Public data identifies TOP254YN as a confirmed substitute part number for the PKS604YN.