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Ultrafast silicon rectifier

UF4007 Working Principle

Learn how UF4007 works with an illustrated explanation and practical readings.

UF4007 at a glance

Follow the labeled connections and functional stages

UF4007 working principle: illustrated functional stages, basic circuit and connections
Select the diagram to read it at full resolution.

How it works

3 stages · Explore one step at a time

Step 1 / 3

Identify the band

The banded end is cathode K, numbered 1 in this PCB convention.

Step 2 / 3

Pass the positive half-cycle

The anode must be positive enough relative to cathode to forward-bias the junction.

Step 3 / 3

Recognize the ripple

With no filter capacitor, current returns to zero through each blocked half-cycle.

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