ZM4747A-25 [VISHAY]
20V, 1W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, GLASS, MELF-2;
| 型号： | ZM4747A-25 |
| 厂家： | 
VISHAY |
| 描述： | 20V, 1W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, GLASS, MELF-2 |
| 文件： | 总3页 (文件大小：89K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ZM4728 thru ZM4764
Zener Diodes
V Range 3.3 to 100V
Z
Power Dissipation 1.0W
MELF (Glass)
Features
• Silicon Planar Power Zener Diodes
• For use in stabilizing and clipping circuits with
high power rating.
• Standard Zener voltage tolerance is 10%. Add
suffix “A” for 5% tolerance. Other Zener voltages
and tolerances are available upon request.
• These diodes are also available in the DO-41
case with type designation 1N4728 ... 1N4764
0.022 (0.55)
0.205 (5.2)
0.189 (4.8)
Mechanical Data
Case: MELF Glass Case
Weight: approx. 0.25g
Dimensions in inches and (millimeters)
Packaging Codes/Options:
E4/5K per 13” reel (12mm tape), 10K/box
25/1.5K per 7” reel (12mm tape)
Maximum Ratings & Thermal Characteristics Ratings at 25°C ambient temperature unless otherwise specified.
Parameter
Symbol
Value
Unit
Zener Current (see Table “Characteristics”)
Power Dissipation at Tamb = 25°C
Thermal Resistance Junction to Ambient Air
Junction Temperature
Ptot
1.0(1)
170(1)
W
°C/W
°C
R
θJA
Tj
150
Storage Temperature Range
TS
–65 to +150
°C
Note: (1) Valid provided that electrodes are kept at ambient temperature
6/15/00
ZM4728 thru ZM4764
Zener Diodes
Electrical Characteristics(TA = 25°C unless otherwise noted) Maximum V = 1.2V at I = 200mA
F
F
Nominal
Zener
Maximum
reverse leakage current
Maximum Zener impedance(1)
Z at
ZT
Surge
current
at
Maximum
resgulator
current(2)
voltage(3)
at
Test
Current
I
at I
Z
I
I
R
at V
T
= 25°C
(mA)
ZT
(V)
ZT
ZK
ZK
R
(V)
A
Type
V
I
(mA)
(Ω)
(Ω)
(mA)
(µA)
I
R
I
(mA)
Z
ZT
ZM
ZM4728
ZM4729
ZM4730
ZM4731
ZM4732
ZM4733
ZM4734
ZM4735
ZM4736
ZM4737
ZM4738
ZM4739
ZM4740
ZM4741
ZM4742
ZM4743
ZM4744
ZM4745
ZM4746
ZM4747
ZM4748
ZM4749
ZM4750
ZM4751
ZM4752
ZM4753
ZM4754
ZM4755
ZM4756
ZM4757
ZM4758
ZM4759
ZM4760
ZM4761
ZM4762
ZM4763
ZM4764
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.2
6.8
7.5
8.2
9.1
10
11
76
69
64
58
53
49
45
41
37
34
31
28
25
23
21
19
17
10
10
9
400
400
1.0
1.0
100
100
50
10
10
10
10
10
10
10
10
10
10
5
1.0
1.0
1380
1260
1190
1070
970
890
810
730
660
605
550
500
454
414
380
344
304
285
250
225
205
190
170
150
135
125
115
110
95
276
252
234
217
193
178
162
146
133
121
110
100
91
400
1.0
1.0
9
400
1.0
1.0
8
500
1.0
1.0
7
550
1.0
1.0
5
600
1.0
2.0
2
700
1.0
3.0
3.5
4.0
4.5
5.0
7
700
1.0
4.0
700
0.5
5.0
700
0.5
6.0
700
0.5
7.0
700
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
7.6
8
700
8.4
83
12
13
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
62
68
75
82
91
9
700
5
9.1
76
10
14
16
20
22
23
25
35
40
45
50
60
70
80
95
110
125
150
175
200
250
350
700
5
9.9
69
700
5
11.4
12.2
13.7
15.2
16.7
18.2
20.6
22.8
25.1
27.4
29.7
32.7
35.8
38.8
42.6
47.1
51.7
56.0
62.2
69.2
76.0
61
15.5
14
700
5
57
750
5
50
12.5
11.5
10.5
9.5
8.5
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.7
3.3
3.0
2.8
2.5
750
5
45
750
5
41
750
5
38
750
5
34
1000
1000
1000
1000
1500
1500
1500
2000
2000
2000
2000
3000
3000
3000
5
30
5
27
5
25
5
23
5
22
5
19
5
90
18
5
80
16
5
70
14
5
65
13
5
60
12
5
55
11
5
50
10
100
5
45
9
Notes: (1) The Zener impedance is derived from the 1KHZ AC voltage which results when an AC current having an RMS value equal to 10% of the Zener current
(IZT or IZK) is superimposed on IZT or IZK. Zener impedance is measured at two points to insure a sharp knee on the breakdown curve and to eliminate
unstable units
(2) Valid provided that electrodes at a distance of 10mm from case are kept at ambient temperature
(3) Measured under thermal equilibrium and DC test conditions.
ZM4728 thru ZM4764
Zener Diodes
Ratings and
Characteristic Curves(TA = 25°C unless otherwise noted)
ZM4728...ZM4764
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