Diotec Semiconductor AG

On paper, the difference looks small.

Forward voltage shifts from ~0.45 V to ~0.30 V.

But in practice, it defines how much heat you need to dissipate, how large your cooling solution grows, and how close you can pack your system.

3G Schottkys offer measurable gains:

• Lower Vf without the leakage penalty of earlier designs
• More stable thermal behaviour at high current
• Reduced energy loss at system level
• “Ultra-low Vf” Schottkys still exist of course.

But their home is polarity protection or standby rails, not continuous SMPS rectification.

The lesson is simple…

In high-efficiency design, decimals matter.

Where have you seen small Vf improvements pay back the most in your projects? Learn more about our Schottky Diodes.