
Electromagnetic Immunity
Table 8: Immunity type tests
Phenomenon
Standard
1
Class
Level
Coupling
mode
2
Value
applied
Waveform
Source
Imped.
Test
In
Per-
procedure
oper. form.
3
Electrostatic
discharge
to case
IEC/EN
61000-4-2
2
contact discharge
4000 V
p
1/50 ns
330
10 positive and
10 negative
discharges
yes
B
3
air discharge
8000 V
p
Electromagnetic
field
IEC/EN
61000-4-3
2
antenna
3 V/m
AM 80%
1 kHz
26…1000 MHz
yes
A
ENV 50204
PM, 50% duty
cycle, 200 Hz
resp. frequ.
900 MHz
Electrical fast
transient/burst
IEC/EN
61000-4-4
3
direct +i/–i
2000 V
p
bursts of 5/50 ns
5 kHz rep. rate
transients with
15 ms burst
duration and a
300 ms period
50
1 min positive
1 min negative
transients per
coupling mode
yes
A
Surge
IEC/EN
61000-4-5
5
2
+i/–i
1000 V
p
1.2/50
s
2
5 pos. and 5 neg.
impulses per
coupling mode
yes
B
Conducted
disturbancies
IEC/EN
61000-4-6
2
+i/–i
3
V
rms
AM modulated
80%, 1 kHz
50
0.15...80 MHz
150
yes
A
(130 dB
V)
Transient
ETR 283
(19 Pfl 1)
4
+i/–i
150 V
p
0.1/0.3 ms
limited to
<100 A
3 positive
yes
B
1
Related and previous standards are referenced in:
Technical Information: Standards
.
2
i = input, o = output.
3
A = normal operation, no deviation from specification, B = temporary deviation from specs. possibe.
4
For 48 IMS 30 types (additional external components required).
5
External components required.
which typically occur in many installations, but especially in
battery driven mobile applications.
Electromagnetic Compatibility (EMC)
A suppressor diode together with an input filter form an ef-
fective protection against high input transient voltages
Fig. 10
Typical disturbance voltage (quasi-peak) at the input ac-
cording to CISPR 11/EN 55011 and CISPR 22/EN 55022,
measured at U
i nom
and I
o nom
. Output leads 10 cm, twisted.
(48 IMS30-0503
-9G
)
Electromagnetic Emission
07020
EN 55022 A
EN 55022 B
90
80
70
60
50
40
30
20
10
0
0
0
0
0
1
5
1
2
3
[dB
V]
MHz
0
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