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1N4728A Datasheet(PDF) 2 Page - Daesan Electronics Corp.

Part No. 1N4728A
Description  1W SILICON PLANAR ZENER DIODES
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Maker  DAESAN [Daesan Electronics Corp.]
Homepage  http://www.diodelink.com
Logo DAESAN - Daesan Electronics Corp.

1N4728A Datasheet(HTML) 2 Page - Daesan Electronics Corp.

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1N4728...1N4764 SILICON PLANAR ZENER DIODES
Notes:
1) The zener impedance is derived from the 1kHz AC voltage which results when on 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) Vaild provided that electrodes at a distance of 10mm from case are kept at ambient temperature.
3) Measured under thermal equilibrium and DC test conditions.
Nominal
Zener
Voltage3)
Type
Maximum zener impedance1)
at
IzT
Vz V
1N4728
1N4729
1N4730
1N4731
1N4732
1N4733
1N4734
Maximum
Reverse Leakage Current
Maximum
Regulator
Current2)
IR μA
at VR
V
1N4735
1N4736
1N4737
1N4738
1N4739
1N4740
1N4741
1N4742
1N4743
1N4744
1N4745
1N4746
1N4747
1N4748
1N4749
at
IzT
ZZT Ω
IZT mA
Surge
Current
1N4750
1N4751
1N4752
1N4753
1N4754
1N4755
1N4756
1N4757
1N4758
1N4759
1N4760
1N4761
1N4762
1N4763
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
15
16
18
20
22
24
12
13
27
30
33
36
39
43
47
62
68
75
82
91
51
56
7
5
76
69
64
58
53
49
45
2
3.5
4.0
4.5
5.0
7
8
9
10
14
16
20
22
23
25
41
37
34
31
28
25
23
17
15.5
14
12.5
11.5
10.5
21
19
10
35
40
45
50
60
70
80
95
110
125
150
175
200
250
9.5
8.5
7.5
7.0
6.5
6.0
5.5
4.0
3.7
3.3
3.0
2.8
5.0
4.5
10
9
9
8
400
500
550
600
0.5
700
750
0.25
1000
1500
2000
3000
1.0
100
50
10
5
890
810
1.0
1.0
1.0
1.0
1.0
1.0
2.0
730
660
605
550
500
454
414
380
344
304
285
250
225
205
190
3.0
4.0
5.0
6.0
7.0
7.6
8.4
11.4
12.2
13.7
15.2
16.7
18.2
9.1
9.9
1380
170
150
135
125
115
110
95
90
80
70
65
60
55
50
20.6
22.8
25.1
27.4
29.7
32.7
35.8
47.1
51.7
56.0
62.2
69.2
38.8
42.6
1260
1190
1070
970
276
252
234
217
193
178
162
146
133
121
110
100
91
83
61
57
50
45
41
38
76
69
34
30
27
25
23
22
19
14
13
12
11
10
1N4764
100
350
2.5
45
76.0
9
18
16
Test
Current
ZZK
Ω
IZM
mA
at
IZK
mA
at TA=0.25
IR
mA


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