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SAE J1113-13

2004 Edition, November 2004

Complete Document

Electromagnetic Compatibility Measurement Procedure for Vehicle ComponentsPart 13: Immunity to Electrostatic Discharge

Includes all amendments and changes through Reaffirmation Notice , June 2011

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Detail Summary

Superseded By: SAE J1113/13

Additional Comments:
W/D S/S BY SAE J1113/13
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Product Details:

  • Revision: 2004 Edition, November 2004
  • Published Date: June 2011
  • Status: Superseded By:
  • Superseded By: SAE J1113/13
  • Document Language: English
  • Published By: SAE International (SAE)
  • Page Count: 24
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This SAE Standard specifies the test methods and procedures necessary to evaluate electrical components intended for automotive use to the threat of Electrostatic Discharges (ESDs). It describes test procedures for evaluating electrical components on the bench in the powered mode and for the packaging and handling non-powered mode.

A procedure for calibrating the simulator that is used for electrostatic discharges is given in Appendix A.

An example of how to calculate the RC Time Constant is given in Appendix B

Functional Performance Status Classifications for immunity to ESD and Sensitivity classifications for ESD sensitive devices are given in Appendix C.

Measurement Philosophy

The familiar static charge generated and discharged when moving about inside a vehicle or exiting from a vehicle has assumed greater significance with the increase of vehicular electronic components. Tests simulating the electrostatic discharge of humans, in common use by non-automotive industries, were examined and it was determined that they were not applicable to the automotive environment. As a consequence, tests tailored to the automotive environment were developed.

Tests that simulate an electrostatic discharge (ESD) into a vehicular electrical system are based on the human ESD model. The ESD model consists essentially of a capacitor formed by a person to his surroundings and discharged through a path that includes that persons resistance as well as vehicle loads. Sensitive electrical devices can be adversely affected by energy either injected or coupled from electrostatic discharges.

ESD generates transient coupled EM fields as a result of the rapid high-voltage charge transfer. These EM fields are an inherent part of the discharge event and are not simulated separately.

Components can also be damaged by ESD during handling and they should therefore be evaluated for ESD sensitivity in a non-powered mode. The test procedures to evaluate the ESD sensitivity classification of components in a non-powered mode is detailed in Section 5 of this document.
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