What is IEC61000-4-5?

This test is not a direct lightning test, but a test that models the surge voltage/current induced in the vicinity by the effects of a lightning strike. It also includes opening and closing surges due to switching in the power system (capacitor switching, power distribution system on/off, load changes, short circuits, etc.).

ESD surge specified in IEC61000-4-2 is a problem in almost all electronic equipment. However, what is modeled in IEC61000-4-5 poses problems for communication lines, power lines and control lines of industrial equipment, and inductive loads.
This is because these surges are often caused mainly by inductance.
IEC610004-5 provides models to simulate these surges so you can check if your equipment can withstand them.
There are 5 levels of classes, and the 5 levels of classes (applied voltage: 25V to 4kV) are defined according to the equipment installation location (surge control level).
We provide IEC61000-4-5 compliant devices as devices for these countermeasures.

Test circuit example 　
Test circuit example 　
Example of test waveform
Example of test waveform

Related Links

For products, please refer to the following links.

Diodes
Products
Basic Knowledge of Discrete Semiconductor Device Chapter II : Diodes
e-Learning
Basics of TVS Diodes (ESD protection diodes)
e-Learning
Basics of Schottky Barrier Diodes Chapter1
e-Learning

Back to FAQs of Diodes

A new window will open