Data Sheet
1 Watt
ZENER DIODES (3.3V to 100V)
NOTES: 1. For 10% Tolerance on Zener Voltage, Specify No Suffix. For 5% Tolerance,
Specify Suffix A. (Example: 1N4728A = 3.3V +/- 5%)
2. T = 25 unless otherwise specified. Measurements made at Thermal Equilibrium.
°C
A
Lead Length = .375". Thermal Resistance of Heat Sink = 30 / W, V = 1.1V Max. @ I = 200mA.
°C
F
F
Electrical Characteristics @ 25OC.
MAX. ZENER IMPEDANCE
MAX. REVERSE
MAX
Part #
JedecType#
TestCurrent
Izt Max
Nominal
LEAKAGE CURRENT
SURGE CURRENT
ZenerVoltage
Zzt @ Izt Zzk@Izk
Izk
Ohms
Ohms
mA
VR
TA = 25o
C
IR (µA)
1N4728
1N4729
1N4730
1N4731
1N4732
400
400
400
400
500
1
1
1
1
1
100
100
50
1
1
1
1
1
1380
1260
1190
1070
970
3.3
3.6
3.9
4.3
4.7
76
69
64
58
53
10
10
9
10
9
10
8
1N4733
1N4734
1N4735
1N4736
1N4737
550
600
700
700
700
1
10
10
10
10
10
1
2
3
4
5
890
810
730
660
605
5.1
5.6
6.2
7.5
8.2
49
45
41
37
34
7
1
5
1
2
1
3.5
0.5
4
1N4738
1N4739
1N4740
1N4741
1N4742
0.5
10
10
10
5
6
550
500
454
414
380
6.0
9.1
10
31
28
25
23
21
700
700
700
700
700
4.5
5
0.5
7
0.25
0.25
0.25
7.6
8.4
9.1
7
11
8
9
5
12
1N4743
1N4744
1N4745
1N4746
1N4747
700
700
700
750
750
0.25
0.25
0.25
0.25
0.25
5
5
5
5
5
9.9
344
304
285
250
225
13
15
16
18
20
19
10
14
16
20
22
11.4
12.2
13.7
15.2
17
15.5
14
12.5
1N4748
1N4749
1N4750
1N4751
1N4752
750
0.25
0.25
0.25
0.25
0.25
5
5
5
5
5
16.7
18.2
20.6
22.8
25.1
205
190
170
150
135
22
24
27
30
33
11.5
10.5
9.5
23
25
35
40
45
750
750
1000
1000
8.5
7.5
1N4753
1N4754
1N4755
1N4756
1N4757
1500
1500
1500
1500
1500
0.25
0.25
0.25
0.25
0.25
5
5
5
5
5
27.4
29.7
32.7
35.8
38.8
125
115
110
95
36
39
43
47
51
7.0
6.5
6.0
5.5
5.0
50
60
70
80
95
90
1N4758
1N4759
1N4760
1N4761
1N4762
0.25
0.25
0.25
0.25
0.25
5
5
5
5
5
42.6
47.1
51.7
56
80
70
65
60
55
56
62
68
75
82
4.5
4.0
3.7
3.3
3.0
2000
2000
2000
2000
3000
110
125
150
175
200
62.2
1N4763
1N4764
3000
3000
0.25
0.25
5
5
69.2
76
50
45
91
100
2.8
2.5
250
350
Page 12-5
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