VEGA Z728 Zener barriers - Manual (Page 10)

10
Zener barriers - operating instructions
How to select the correct barrier
Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany
Pepperl+Fuchs Group • Tel.: Germany +49 621 776-0 • USA +1 330 4253555 • Singapore +65 67799091 • Internet http://www.pepperl-fuchs.com
Da
te of issu
e
05/2
3
/03
Max.
end-to-end
resistance
U
in
at 10 µA
U
in
max
Fuse rating see circuit
diagram No.
Circuit diagram
Hazardous area Safe area
connections connections
see note 2
W V V mA
166
166
–
10.0
10.0
–
11.7
11.7
–
50
50
–
6) 4)
5
)
6)
7)
8)
9)
A1
A2
B
169
169
–
82
82
–
10.0
10.0
–
10.0
10.0
–
11.9
11.9
–
11.7
11.7
–
63
63
–
100
100
–
6)
A1
A2
B
A1
A2
B
166
166
–
19.0
19.0
–
20.1
20.1
–
50
50
–
4), 5) A1
A2
B
646
646
–
327
327
–
250
250
–
338
338
264
264
26.5
26.5
–
26.5
26.5
–
26.5
26.5
–
26.5
26.6
26.5
26.5
28.0
28.0
–
28.0
28.0
–
28.0
28.0
–
28.0
28.0
28.0
28.0
50
50
–
50
50
–
80
80
–
50
50
50
50
4), 5)
4), 5)
4), 5)
A1
A2
B
A1
A2
B
A1
A2
B
340
437
–
24.0
18.0
–
25.1
19.5
–
50
50
–
4), 5) A1
A2
B
327
64
–
250
64
–
327
64
–
26.5
6.5
–
26.5
6.5
–
26.5
–
–
28.0
9.1
–
28.0
9.1
–
28.0
9.1
–
50
50
–
80
80
–
50
50
–
4), 5)
4), 5)
7)
A1
A2
B
A1
A2
B
A1
A2
B
36 + 0.9 V
36 + 0.9 V
–
26.5
26.5
–
28.0
28.0
–
50
50
–
8) A1
A2
B
327
36 + 0.9 V
–
250
25+ 0.9 V
–
338
46+ 0.9 V
–
264
39+ 0.9 V
–
26.5
26.5
–
26.5
26.5
–
26.5
26.5
–
26.5
26.5
–
28.0
28.0
–
28.0
28.0
–
28.0
28.0
–
28.0
28.0
–
50
50
–
80
80
–
50
50
–
50
50
–
9)
9)
A1
A2
B
A1
A2
B
A1
A2
B
A1
A2
B
+VE type
1 8
4 5
2 7
3 6
x3
x3
-VE type
1 8
4 5
2 7
3 6
x3
x3
AC type
1 8
4 5
2 7
3 6
x3
x3
x3
x3
AC type
All diodes are turned 180˚
for the -VE version.
1 8
4 5
2 7
3 6
x3
x3
All diodes are turned 180˚
for the -VE version.
1 8
4 5
2 7
3 6
x3
x3
All diodes are turned 180˚
for the -VE version.
1 8
4 5
2 7
3 6
x3
x3