KP8, KP8F, KP32F
Operating Instructions, 11/2011, A5E03284305-02
125
Appendix
A
A.1 ESD guideline
What does ESD mean?
An electronic module is equipped with highly integrated electronic components. Due to their
design, electronic components are highly sensitive to overvoltage and thus to the discharge
of static electricity. Such electronic components are labeled as electrostatic sensitive devices
(ESD).
The following abbreviations are commonly used for electrostatic sensitive devices:
● ESD – Electrostatic Sensitive Device
● ESD – Electrostatic Sensitive Device (internationally recognized term)
Electrostatic charge
CAUTION
Electrostatic charge
ESDs may be destroyed by voltages far below the level perceived by human beings. If you
are not discharged electrostatically, the voltage that you transfer when touching a
component or the contact points of a module can already cause damage.
The damage to an ESD caused by overvoltage is usually not recognized immediately. The
damage only becomes apparent after a long period of operation.
Discharge any electrostatic charge of your body before you touch the ESD.
Anyone who is not connected conductively to their surroundings is subject to electrostatic
charge.
The following diagram shows the maximum voltage values to which a person can be
charged electrostatically. The values depend on the material and humidity. The shown
values are in conformity with the specifications of EN 61000-4-2.
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