DSTF20120C

Diode Arrays Overview

The Littelfuse DSTF20120C is a dual Schottky barrier rectifier featuring a common cathode configuration housed in an ITO-220AB package. It provides a peak inverse voltage of 120V and supports an average forward current of 20A total, or 10A per leg under specified thermal conditions. The device exhibits ultra-low forward voltage drop characteristics, with typical values of 0.90V at 10A and 25°C junction temperature. It offers high surge capability with a non-repetitive peak forward current rating of 150A per leg. The component operates within a junction temperature range of -55°C to +150°C.

Diode Arrays Feature Summary

• Ultra-low forward voltage drop for improved efficiency
• Guard ring construction for enhanced ruggedness and long-term reliability
• High frequency operation suitable for switching applications
• Common cathode configuration in ITO-220AB package

Diode Arrays Applications

• Switching mode power supplies
• DC/DC converters
• Free-wheeling diodes
• Polarity protection diodes

Diode Arrays Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm package type and configuration details. Ensure that thermal management requirements align with the specified junction-to-case thermal resistance values provided in the electrical specifications. Confirm compliance with relevant environmental standards such as RoHS before finalizing procurement decisions.

Diode Arrays Selection Notes

Select this component for designs requiring low forward voltage drop and high-frequency performance. Consider the 120V reverse voltage rating and 20A total current capacity when sizing for load requirements. Evaluate thermal dissipation needs based on the 5.0 °C/W junction-to-case thermal resistance per leg. Verify that the ITO-220AB package dimensions fit the intended PCB layout and heatsinking constraints.

Diode Arrays Part Context

This device belongs to the Littelfuse DST series of ultra-low VF Schottky barrier rectifiers. The series is engineered to meet general commercial and industrial application requirements by providing high temperature stability, low leakage current, and reduced forward voltage drop. The part numbering system indicates the forward current and reverse voltage ratings within the series.

Diode Arrays Replacement Considerations

Consult the official Littelfuse documentation for verified substitute part numbers. Cross-reference electrical parameters such as peak inverse voltage, average forward current, and forward voltage drop to ensure compatibility. Verify package compatibility and pinout configurations before implementing any replacement components.

Diode Arrays FAQ

What is the maximum repetitive peak reverse voltage?

The maximum repetitive peak reverse voltage (VRWM) is 120 V.

What is the isolation voltage rating?

The isolation voltage depends on mounting: 4500 V for clip mounting with epoxy body away from heatsink edge, 3500 V for clip mounting with epoxy inside heatsink, and 1500 V for screw mounting with epoxy inside heatsink.

What is the thermal resistance junction to case?

The thermal resistance junction to case (RthJC) is 5.0 °C/W per leg under DC operation.