Siemens SIMATIC User Manual

S7-300 Module data
619 Manual, 06/2017, A5E00105505-AJ
Directive on handling Electrostatic-Sensitive Devices
(ESD)
E
Introduction
In this appendix, we explain
● the meaning of "electrostatic-sensitive devices"
● the precautions you must take when handling and working with electrostatic sensitive
modules.
E.1 Definition of ESD
Definition
All electronic modules are equipped with large-scale integrated ICs or components. Due to
their design, these electronic elements are highly sensitive to overvoltage, and thus to any
electrostatic discharge.
These
Electrostatic Sensitive Ddevices/Modules are commonly abbreviated ESD. The
common international designation
ESD stands for Electrostatic Sensitive Device.
ESD modules are identified by the following symbol:
CAUTION
ESD devices can be destroyed by voltages well below the threshold of human perception.
These static voltages develop when you touch a component or electrical connection of a
device without having drained the static charges present on your body. The electrostatic
discharge current may lead to latent failure of a module, that is, this damage may not be
significant immediately, but in operation may cause malfunction.

Siemens SIMATIC Specifications

General

Brand	Siemens
Model	SIMATIC
Category	Control Unit
Language	English