DSTF40100C

Diode Arrays Overview

The Littelfuse DSTF40100C is a Schottky Barrier Rectifier featuring a dual common cathode configuration in an ITO-220AB package. It provides a peak inverse voltage of 100V and supports a total average forward current of 40A (20A per leg). The device exhibits ultra-low forward voltage drop, reaching a maximum of 0.75V at 20A and 25°C. It withstands a non-repetitive surge current of 300A per leg and operates within a junction temperature range of -55°C to +150°C.

Diode Arrays Feature Summary

• Ultra low forward voltage drop for improved efficiency
• High frequency operation suitable for switching applications
• Guard ring structure for enhanced ruggedness and long-term reliability
• 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 official Littelfuse documentation to confirm exact packaging quantities and tube specifications. Ensure thermal management requirements align with the specified thermal resistance values. Confirm RoHS compliance status through the manufacturer's latest product change notifications or datasheet revisions before finalizing procurement orders.

Diode Arrays Selection Notes

Select this component when designing circuits requiring high-frequency rectification with minimal conduction losses. The common cathode arrangement simplifies layout for synchronous rectification or bridge configurations. Evaluate thermal dissipation capabilities based on the 4.0 °C/W junction-to-case resistance under DC operation conditions to ensure reliable performance within the specified temperature limits.

Diode Arrays Part Context

This device belongs to the Littelfuse DST series of Ultra Low VF Schottky Barrier Rectifiers. Designed for commercial and industrial applications, the series emphasizes high temperature stability and low leakage characteristics. The ITO-220AB case style facilitates efficient heat sinking and robust mechanical mounting for power electronics systems.

Diode Arrays Replacement Considerations

Consult Littelfuse official substitution guides for verified alternatives. Cross-reference electrical parameters such as forward voltage, reverse voltage, and package dimensions to ensure compatibility.

Diode Arrays FAQ

What is the isolation voltage rating for clip mounting?

The isolation voltage is 4500V when the epoxy body is mounted away from the heatsink edge by more than 0.110 inches along the lead direction.

How does the forward voltage drop vary with temperature?

At 20A, the typical forward voltage drop decreases from 0.68V at 25°C to 0.64V at 125°C, with maximum limits of 0.75V and 0.70V respectively.

What is the maximum junction capacitance per leg?

The junction capacitance is typically 845 pF per leg, measured at 5V reverse bias, 25°C case temperature, and 1MHz signal frequency.