DSTF30120CR

Diode Arrays Overview

The Littelfuse DSTF30120CR is a dual Schottky Barrier Rectifier featuring a common anode configuration housed in an ITO-220AB package. It provides a peak inverse voltage of 120V and supports a total average forward current of 30A, with each leg rated at 15A. The device exhibits ultra-low forward voltage drop characteristics, ensuring high efficiency during operation. It withstands a peak one-cycle 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 enhanced system efficiency
• High junction temperature capability up to +150°C
• Guard ring structure for improved ruggedness and long-term reliability
• Common cathode configuration integrated into the ITO-220AB package

Diode Arrays Applications

• High frequency 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 the exact package variant and compliance status. Ensure that thermal management requirements align with the specified thermal resistance values. Confirm that the application environment remains within the stated operating temperature limits to maintain device integrity and performance specifications.

Diode Arrays Selection Notes

Select this component when designing circuits requiring low conduction losses and high-frequency switching capabilities. The common anode topology simplifies circuit layout for synchronous rectification or polarity protection applications. Evaluate the thermal dissipation needs based on the 4.5 °C/W junction-to-case resistance to ensure reliable operation under continuous load conditions.

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 commercial and industrial standards by combining high-temperature resilience with minimal leakage current. The product line targets general-purpose circuit protection and power conversion tasks where efficiency and durability are critical design parameters.

Diode Arrays Replacement Considerations

Consult official Littelfuse cross-reference guides for verified substitutes. Ensure any replacement maintains the same voltage rating, current capacity, and package dimensions to guarantee mechanical and electrical compatibility without redesigning the host circuit board.

Diode Arrays FAQ

What is the isolation voltage specification for the DSTF30120CR?

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

How is the average forward current distributed in this dual device?

The device has a total average forward current rating of 30A, which is split between the two legs, providing 15A per leg under a 50% duty cycle at a case temperature of 80°C.

What is the maximum surge current capability per leg?

Each leg can withstand a peak one-cycle non-repetitive surge current of 300A, measured as an 8.3 ms half-sine pulse.