FSL138MRTWDTU

AC DC Converters, Offline Switchers Overview

The FSL138MRTWDTU is a PWM controller switching power supply chip manufactured by onsemi. It features one output and utilizes a TO-220F package with six pins for surface mount installation. The device operates within a temperature range of -40 °C to +125 °C. Key electrical specifications include a maximum operating current of 2.15 A, an on-resistance of 5 Ω, and a rated power capacity of 35 W.

AC DC Converters, Offline Switchers Feature Summary

• Integrated PWM control architecture for switching power supply applications
• High thermal tolerance supporting operation up to +125 °C
• Robust current handling capability with 2.15 A maximum operating current

AC DC Converters, Offline Switchers Applications

• General purpose switching power supplies
• Industrial power conversion systems
• Consumer electronics power adapters

AC DC Converters, Offline Switchers Procurement Notes

Verify the complete part number including suffixes against official manufacturer documentation to ensure correct package type and tape/reel configuration. Confirm that the TO-220F form factor matches your thermal management requirements. Cross-reference datasheet revisions to validate pinout compatibility and electrical characteristics before finalizing procurement orders.

AC DC Converters, Offline Switchers Selection Notes

Select this component when designing isolated or non-isolated converters requiring integrated PWM control in a high-power through-hole compatible package. Evaluate the 5 Ω on-resistance against conduction loss constraints. Ensure the 35 W rated power aligns with system efficiency targets. Verify input voltage ranges and switching frequency capabilities against specific topology requirements during the design phase.

AC DC Converters, Offline Switchers Part Context

This component belongs to onsemi's portfolio of power management solutions, specifically within the PWM controller category. It is designed for efficient power conversion in various electronic devices. The product line emphasizes reliability and performance for industrial and consumer markets, leveraging established semiconductor manufacturing processes to deliver consistent quality across the series.

AC DC Converters, Offline Switchers Replacement Considerations

Consult official cross-reference guides for verified substitutes. Ensure replacement parts match the TO-220F package and 6-pin configuration. Validate equivalent electrical parameters such as operating current and on-resistance to maintain system performance without redesign.