Data Sheet
1 Watt
ZENER DIODES (3.3V to 100V)
Mechanical Dimensions
JEDEC
D0-41
.080
.107
.205
.160
1.00 Min.
1N4728...4764 Series
Description
.031 typ.
Features
n
5 & 10% VOLTAGE
TOLERANCES AVAILABLE
n
WIDE VOLTAGE RANGE
n
MEETS UL SPECIFICATION 94V-0
1N4728...4764 Series
.............................................
1
...............................................
Units
Watt
mW /
°C
°C
Maximum Ratings
DC Power Dissipation with T
L
= > = 75
°C
...P
D
Lead Length = .375 Inches
Derate Above 50
°C
Operating & Storage Temperature Range...T
J
, T
STRG
Steady State Power Derating
............................................. 6.67 ...............................................
......................................... -65 to 100 ..........................................
Temperature Coefficients vs. Voltage
Typical Junction Capacitance
Watts
mV/
o
C
pF
1 V Bias
0 V Bias
50% Vz Bias
T
L
= Lead Temperature (°C)
°
Zener Voltage (Volts)
Zener Current vs. Zener Voltage
Zener Voltage (Volts)
Zener Current (mA)
Zener Voltage (Volts)
Page 12-4
NOTES:
1. For 10% Tolerance on Zener Voltage, Specify No Suffix. For 5% Tolerance,
Specify Suffix A. (Example: 1N4728A = 3.3V +/- 5%)
2. T
A
= 25
°C
unless otherwise specified. Measurements made at Thermal Equilibrium.
Lead Length = .375". Thermal Resistance of Heat Sink = 30
°C
/ W, V
F
= 1.1V Max. @ I
F
= 200mA.
Electrical Characteristics @ 25
O
C.
Part #
Jedec Type #
1N4728
1N4729
1N4730
1N4731
1N4732
1N4733
1N4734
1N4735
1N4736
1N4737
1N4738
1N4739
1N4740
1N4741
1N4742
1N4743
1N4744
1N4745
1N4746
1N4747
1N4748
1N4749
1N4750
1N4751
1N4752
1N4753
1N4754
1N4755
1N4756
1N4757
1N4758
1N4759
1N4760
1N4761
1N4762
1N4763
1N4764
Nominal
Zener Voltage
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.2
7.5
8.2
6.0
9.1
10
11
12
13
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
62
68
75
82
91
100
Test Current
Izt Max
76
69
64
58
53
49
45
41
37
34
31
28
25
23
21
19
17
15.5
14
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
MAX. ZENER IMPEDANCE
Zzt @ Izt
Ohms
10
10
9
9
8
7
5
2
3.5
4
4.5
5
7
8
9
10
14
16
20
22
23
25
35
40
45
50
60
70
80
95
110
125
150
175
200
250
350
Zzk @ Izk
Ohms
400
400
400
400
500
550
600
700
700
700
700
700
700
700
700
700
700
700
750
750
750
750
750
1000
1000
1500
1500
1500
1500
1500
2000
2000
2000
2000
3000
3000
3000
Izk
mA
1
1
1
1
1
1
1
1
1
0.5
0.5
0.5
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
MAX. REVERSE
LEAKAGE CURRENT
MAX
SURGE CURRENT
I
R
(µA)
100
100
50
10
10
10
10
10
10
10
10
10
10
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
V
R
1
1
1
1
1
1
2
3
4
5
6
7
7.6
8.4
9.1
9.9
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
62.2
69.2
76
T
A
= 25
o
C
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
90
80
70
65
60
55
50
45
Page 12-5
1N4728...4764 Series
Data Sheet
1 Watt
ZENER DIODES (3.3V to 100V)
微控制器 MCU
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