Specifications

EMC-CS-2009.1
© Copyright Ford Motor Company – All Rights Reserved Page 46 of 121
February 11, 2010
12.0 Magnetic Field Immunity: RI 140
Magnetic field immunity requirements cover the frequency range from 50 Hz to 100 kHz. Requirements are based on
anticipated “off-vehicle” electromagnetic sources (e.g. AC power lines) in addition to “on-vehicle” sources (e.g. charging
system, PWM sources). These requirements are applicable to the following component categories:
Electronic Modules: AM
12.1 Requirements
The component including any attached magnetic sensors (if applicable) shall operate without deviation when exposed to the
magnetic field levels delineated in Figure 12-1.
Figure 12-1: RI 140 Magnetic Field Immunity Requirements
100
110
120
130
140
150
160
170
0.01 0.1 1 10 100
kHz
dBpT
Functional Performance Status
Frequency
(kHz)
Level (dBpT rms)
Class A Class B Class C
0.05 - 1
⎟
⎠
⎞
⎜
⎝
⎛
−
05.0
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*
I I I
1 – 10 139 I I I
10 – 100
⎟
⎠
⎞
⎜
⎝
⎛
−
10
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*
I I I
* f = frequency in kHz