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| 型號： | 71816 |
| 英文描述： | Dual-Synchronous Buck Controllers for Point-of-Load, Tracking, and DDR Memory Power Supplies |
| 中文描述： | 是屏障 |
| 文件頁數(shù)： | 5/6頁 |
| 文件大小： | 72K |
| 代理商： | 71816 |
451
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
at 10 μA
U
in
max
Fuse rating
U
z
(V)
28
28
28
28
28
28
28
28
–
R
min
(
)
607
607
303.5
301
301
150.5
235
235
–
I
K
(mA)
46
46
92
93
93
186
119
119
–
P
max
(W) C
max
(μF)L
max
(mH) L/R Ratio
0.32
0.32
0.65
0.65
0.65
1.3
0.83
0.83
–
no approval for IIC
V
V
mA
A1
A2
B
A1
A2
B
A1
A2
B
0.13
0.13
0.13
0.13
0.13
0.13
0.13
16
16
4.2
4.2
4.2
2.55
2.55
103
103
40
55
55
42
42
646
646
–
327
327
–
250
250
–
27.0
27.0
–
27.0
27.0
–
27.0
27.0
–
28.0
28.0
–
28.0
28.0
–
28.0
28.0
–
50
50
–
50
50
–
80
80
–
A1
A2
B
A1
A2
A1
A2
B
B
A1
A2
B
A1
A2
B
A1
A2
B
A1
A2
B
26.6
20.5
23.9
28
9.56
28
9.56
28
12.14
28
9.56
28
28
28
28
28
28
28
28
28
28
314
407
177.25
301
49
235
49
40.54
42.14
235
49
40.54
85
50
135
93
195
119
195
314
288
119
195
314
–
0.57
0.26
0.81
0.65
0.47
0.83
0.47
1
0.87
0.83
0.47
1
–
–
–
0.65
–
0.65
0.83
–
0.83
0.15
0.3
0.15
0.13
3.0
0.13
3
0.13
0.13
0.13
3
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.13
5
14
1.9
4.2
0.95
2.55
0.95
0.27
0.36
2.55
0.95
0.27
–
–
–
4.2
–
4.2
2.55
60
132
34
55
75
42
75
27.7
25
42
75
27.7
–
–
–
55
–
55
42
340
437
–
327
64
250
64
–
–
250
64
–
24.0
18.0
–
27.0
6.5
27.0
6.5
–
–
27.0
–
–
27.0
27.0
–
27.0
27.0
–
27.0
27.0
–
25.1
19.5
–
28.0
9.1
28.0
9.1
–
–
28.0
9.1
–
28.0
28.0
–
28.0
28.0
–
28.0
28.0
–
50
50
–
50
50
80
80
–
–
80
80
–
50
50
–
50
50
–
80
80
–
–
–
36 + 0.9 V
36 + 0.9 V
–
327
36 + 0.9 V
–
250
25+ 0.9 V
–
301
–
301
235
–
235
93
93
119
–
119
2.55
42
75
75
27
143
65
65
20
117
47
47
21
114
83
83
33
166
105
105
39
205
A1
A2
B
C
A1
A2
B
C
A1
A2
B
C
A1
A2
B
C
A1
A2
B
C
9.94
9.94
9.94
9.94
15
15
15
15
16.8
16.8
16.8
16.8
22
22
22
22
28
28
28
28
49
49
24.5
98
98
98
49
196
117
117
59
235
301
301
150
602
607
607
304
1215
203
203
406
102
153
153
306
77
143
143
286
71
73
73
146
37
46
46
92
23
0.50
0.50
1.08
0.25
0.57
0.57
1.15
0.29
0.60
0.60
1.20
0.30
0.40
0.40
0.80
0.20
0,32
0,32
0.64
0.16
3
3
3
3
0.95
0.95
0.2
3.5
1.5
1.5
0.3
6.0
1.6
1.6
0.26
6.8
6.6
6.6
1.5
23
16
16
4.2
64
64
64
–
–
115
115
–
–
136
136
–
–
327
327
–
–
646
646
–
–
6.5
6.5
–
–
13.0
13.0
–
–
15.0
150
–
–
19.0
19.0
–
–
26.0
26.0
–
–
9.5
9.5
–
–
14.2
14.2
–
–
16.2
16.2
–
–
20.9
20.9
–
–
27.6
27.6
–
–
50
50
–
–
50
50
–
–
50
50
–
–
50
50
–
–
50
50
–
–
0.75
0.75
0.75
0.75
0.56
0.56
0.56
0.56
0.26
0.26
0.26
0.26
0.13
0.13
0.13
0.13
no approval for IIC
see Note 1
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