VF20120SG-M3/4W

Single Diodes Overview

The VF20120SG-M3/4W is a high-voltage Trench MOS Barrier Schottky (TMBS) rectifier manufactured by Vishay General Semiconductor. It features an ITO-220AB through-hole package with matte tin-plated leads. The device provides a maximum repetitive peak reverse voltage of 120 V and a maximum average forward rectified current of 20 A. Key electrical parameters include a peak forward surge current of 150 A, a typical thermal resistance of 4.2 °C/W, and a junction capacitance measured at 1.0 MHz. Operating temperatures range from -40 °C to +150 °C.

Single Diodes Feature Summary

• Utilizes Trench MOS Schottky technology for low forward voltage drop and reduced power losses
• Features an isolated terminal design providing 1500 V AC isolation voltage between the terminal and heatsink
• Complies with RoHS directives and meets JESD 201 class 1A whisker test requirements

Single Diodes Applications

• High frequency DC/DC converters
• Switching power supplies
• Freewheeling diodes
• OR-ing diode circuits
• Reverse battery protection

Single Diodes Procurement Notes

Verify the specific ordering suffix 'M3/4W' against the manufacturer's official documentation to confirm compliance with halogen-free standards and tube packaging specifications. Ensure that the requested component matches the exact document number 89265 revision date to validate technical parameters before procurement.

Single Diodes Selection Notes

Select this component when applications require a single-diode configuration with a 120 V rating and 20 A continuous current capacity in an ITO-220AB package. Consider the 4.2 °C/W thermal resistance for heatsinking calculations and verify that the operating environment stays within the specified -40 °C to +150 °C junction temperature range.

Single Diodes Part Context

This part belongs to the VF series of high-voltage TMBS rectifiers designed for efficiency and reliability. The M3 suffix indicates compliance with RoHS standards and absence of halogens, while the /4W code specifies the tube delivery mode. It represents a commercial grade product optimized for general-purpose power conversion tasks.

Single Diodes Replacement Considerations

Consult the official datasheet or contact authorized personnel directly for confirmed substitute part numbers. Do not assume cross-compatibility based on generic specifications without verifying pinout and electrical ratings.

Single Diodes FAQ

What is the maximum isolation voltage provided by the ITO-220AB package?

The device offers an isolation voltage of 1500 V AC for one minute between the terminal and the heatsink.

How does the forward voltage change with temperature?

At a forward current of 20 A, the forward voltage drops from a maximum of 1.33 V at 25 °C to a maximum of 0.88 V at 125 °C.