DSTF2050C

Diode Arrays Overview

The Littelfuse DSTF2050C is a Schottky Barrier Rectifier featuring a dual common cathode configuration in an ITO-220AB package. It provides a peak inverse voltage of 50V and a total average forward current of 20A, with 10A per leg at a case temperature of 110°C. The device supports a peak one-cycle non-repetitive surge current of 150A per leg. Electrical characteristics include a maximum forward voltage drop of 0.55V at 10A and 25°C, and a maximum reverse leakage current of 85mA at 125°C. The junction temperature range spans from -55°C to +150°C, with a thermal resistance of 6.0°C/W per leg.

Diode Arrays Feature Summary

• Ultra-low forward voltage drop for improved efficiency
• High frequency operation capability
• Guard ring structure for enhanced ruggedness and long-term reliability
• Common cathode configuration within the ITO-220AB package

Diode Arrays Applications

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

Diode Arrays Procurement Notes

Verify the specific package variant against the datasheet pinout diagrams, as the DST series includes D-PAK, TO-220AB, and ITO-220AC options. Confirm that the ordering suffix matches the required configuration, specifically ensuring the 'C' suffix denotes the common cathode arrangement. Cross-reference the marking code 'DSTF2050C' with the manufacturer's numbering system to validate the year and week of manufacture. Ensure compliance with RoHS and lead-free requirements if applicable to the assembly process.

Diode Arrays Selection Notes

Select this component for applications requiring high-frequency switching and low conduction losses. The ITO-220AB package offers electrical isolation between the heat sink and leads, simplifying mounting without external insulators. Consider the thermal resistance of 6.0°C/W per leg when designing heatsinking solutions. The device is suitable for commercial and industrial environments due to its high junction temperature capability and low leakage characteristics.

Diode Arrays Part Context

The DSTF2050C belongs to the Littelfuse DST series of Ultra Low VF Schottky Barrier Rectifiers. This series is engineered to meet general commercial and industry application requirements by providing high-temperature performance, low leakage, and reduced forward voltage drops. The product line utilizes glass-passivated junctions to ensure parameter stability and long-term reliability across various power management scenarios.

Diode Arrays Replacement Considerations

Direct substitutes may include other 20A, 50V dual Schottky rectifiers in ITO-220AB packages, such as the MBR2050CT. Verify that replacement parts match the forward voltage specifications and thermal resistance values to maintain circuit performance. Ensure the alternative device supports the same common cathode configuration and operating temperature range.