449
Subject to reasonable modifications due to technical advances.
Pepperl+Fuchs Group Tel.: Germany (06 21) 7 76-0 USA (330) 4 25 35 55 Singapore 7 79 90 91 Internet http://www.pepperl-fuchs.com
Copyright Pepperl+Fuchs, Printed in Germany
I
1
Zener barriers - Operating instructions
How to select the correct barrier
see
Note 2
Ex-characteristics for [EEx ia] IIC
Max. end-to-
end resist-
ance
U
in
bei 10 μA
U
in
max
Fuse rating
U
z
(V)
4.94
4.98
9.56
9.94
9.56
14.7
15.0
14.7
14.7
15
22
22
28
28
28
4.94
4.94
4.94
4.89
4.89
4.89
9.78
7.2
7.2
7.2
8.7
8.7
8.7
17.4
8.7
8.7
17.35
11.6
11.6
11.6
12
12
12
24
14.7
14.7
14.7
12
12
12
24
12
12
24
22
22
22
R
min
(
)
9.8
9.8
49
49
49
98
98
98
980
980
147
147
301
301
301
9.8
9.8
4.9
9.8
9.8
4.9
19.6
9.8
9.8
4.9
98
98
49
196
352.8
352.8
176.4
980
98
490
980
980
490
1960
98
98
49
147
147
73.5
294
73.5
73.5
36.5
147
147
73.5
I
K
(mA)
504
499
195
203
195
150
153
150
15
15
150
150
93
93
93
504
504
1008
499
499
998
499
729
729
1458
89
89
178
89
25
25
50
12
12
24
12
12
24
12
150
150
300
82
82
164
82
163
163
327
150
150
300
P
max
(W) C
max
(μF)L
max
(mH) L/R Ratio
0.62
0.61
0.47
0.50
0.47
3
0.55
0.57
0.55
0.06
0.06
0.75
0.83
0.83
0.65
0.65
0.65
0.13
0.62
0.62
1.24
1800
0.61
0.61
1.22
1.22
3
1.3
1.3
2.6
0.19
0.19
0.39
0.39
0.05
0.05
0.1
0.46
0.03
0.03
0.06
1.6
0.04
0.04
0.08
0.08
0.2
0.55
0.55
1.1
0.75
0.24
0.24
0.48
0.48
0.2
0.49
0.49
0.98
0.18
0.83
0.83
1.66
no approval for IIC
V
V
mA
1800
1800
3
3
0.15
0.15
0.95
0.95
0.95
1.5
1.5
1.5
150
150
1.5
1.5
4.2
4.2
4.2
0.15
0.15
0.037
0.15
0.15
0.037
0.15
0.7
0.7
0.17
4.5
4.5
1.2
4.5
54.5
54.5
14.35
230
230
60
230
230
60
230
1.5
1.5
0.35
5.2
5.2
1.
5.2
1.34
1.34
0.312
1.5
1.5
60
60
75
75
75
65
65
65
590
590
43
43
55
55
55
60
60
23
60
60
23
30
29
29
11
173
173
68
86
589
589
238
910
910
350
910
910
350
460
65
65
23
143
143
53
71
72
72
30
43
43
18.18
18.18
55
55
62 +2V
106
106
113 +2V
1024
1024
166
181 +2V
327
342 +2V
327
18.18
18.18
–
18.18
18.18
–
–
15.5
15.5
–
106
106
–
–
380
380
–
1033
1033
–
1033
1033
–
–
106
106
–
166
166
–
–
82
82
–
166
166
–
0.9 (1 μA)
0.9 (1 μA)
6.5
6.5
6.5
13.0
13.0
13.0
13.0
13.0
19.0
19.0
27.0
27.0
26.0
0.9 (1μA)
0.9 (1μA)
–
0.9 (1μA)
0.9 (1μA)
–
–
6.0
6.0
–
6.5
6.5
–
–
6.5
6.5
–
10.0
10.0
–
10.0
10.0
–
–
13.0
13.0
–
10.0
10.0
–
–
10.0
10.0
–
19.0
19.0
–
4.8
4.7
8.9
9.3
8.9
13.6
14.0
13.6
13.6
14.0
20.1
20.1
28.0
28.0
27.6
4.8
4.8
–
4.7
4.7
–
–
6.9
6.9
–
8.1
8.1
–
–
8.1
8.1
–
11.0
11.0
–
11.7
11.7
–
–
13.6
13.6
–
11.7
11.7
–
–
11.7
11.7
–
20.1
20.1
–
250
250
100
100
100
100
100
100
100
100
50
50
50
50
50
250
250
–
250
250
–
–
200
200
–
100
100
–
–
50
50
–
50
50
–
50
50
–
–
100
100
–
50
50
–
–
100
100
–
50
50
–
0.75
0.75
0.75
0.75
0.26
0.26
0.13
0.13
A1
A2
B
A1
A2
B
C
A1
A2
B
A1
A2
B
C
A1
A2
B
A1
A2
B
A1
A2
B
C
A1
A2
B
A1
A2
B
C
A1
A2
B
A1
A2
B
1800
1800
1800
1800
1800
14
14
14
5
5
5
0.5
5
5
1.6
1.6
1.6
1.6
1.6
0.75
0.75
1.6
1.6
1.6
1.5
1.5
0.26
0.26