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1N4728A — 1N4764A
Zeners
January 2005
DO-41 Glass case
COLOR BAND DENOTES CATHODE

Absolute Maximum Ratings * Ta = 25°C unless otherwise noted

Symbol
Parameter

PD Power Dissipation

@ TL ≤ 50°C, Lead Length = 3/8”

Derate above 50°C

TJ, TSTG Operating and Storage Temperature Range

* These ratings are limiting values above which the serviceability of the diode may be impaired.
Value
1.0
6.67
-65 to +200

Electrical Characteristics Ta = 25°C unless otherwise noted

Device
1N4728A
1N4729A
1N4730A
1N4731A
1N4732A
1N4733A
1N4734A
1N4735A
1N4736A
1N4737A
1N4738A
1N4739A
1N4740A
1N4741A
1N4742A
1N4743A
1N4744A
1N4745A
1N4746A
1N4747A

VZ (V) @ IZ (Note 1)

Min. Typ. Max.
3.315 3.3 3.465
3.42 3.6 3.78
3.705 3.9 4.095
4.085 4.3 4.515
4.465 4.7 4.935
4.845 5.1 5.355
5.32 5.6 5.88
5.89 6.2 6.51
6.46 6.8 7.14
7.125 7.5 7.875
7.79 8.2 8.61
8.645 9.1 9.555
9.5 10 10.5
10.45 11 11.55
11.4 12 12.6
12.35 13 13.65
14.25 15 15.75
15.2 16 16.8
17.1 18 18.9
19 20 21
Test Current

IZ (mA)

76
69
64
58
53
49
45
41
37
34
31
28
25
23
21
19
17
15.5
14
12.5
Max. Zener Impedance

ZZ @ IZ

(Ω)

10
10
9
9
8

ZZK @

IZK (Ω)

400
400
400
400
500

IZK

(mA)
1
1
1
1
1
7 550 1
5 600 1
2 700 1
3.5 700 1
4 700 0.5
4.5 700 0.5
5 700 0.5
7 700 0.25
8 700 0.25
9 700 0.25
10 700 0.25
14 700 0.25
16 700 0.25
20 750 0.25
22 750 0.25
Units
W

mW/°C

°C

Leakage Current

IR

(µA)

VR

(V)
100 1
100 1
50 1
10 1
10 1
10 1
10 2
10 3
10 4
10 5
10 6
10 7
10 7.6
5 8.4
5 9.1
5 9.9
5 11.4
5 12.2
5 13.7
5 15.2
2005 Fairchild Semiconductor Corporation
1N4728A — 1N4764A Rev. G2
1
www.fairchildsemi.com

Electrical Characteristics TC = 25°C unless otherwise noted

Device
1N4748A
1N4749A
1N4750A
1N4751A
1N4752A
1N4753A
1N4754A
1N4755A
1N4756A
1N4757A
1N4758A
1N4759A
1N4760A
1N4761A
1N4762A
1N4763A
1N4764A

VZ (V) @ IZ (Note 1)

Min. Typ. Max.
20.9 22 23.1
22.8 24 25.2
25.65 27 28.35
28.5 30 31.5
31.35 33 34.65
34.2 36 37.8
37.05 39 40.95
40.85 43 45.15
44.65 47 49.35
48.45 51 53.55
53.2 56 58.8
58.9 62 65.1
64.6 68 71.4
71.25 75 78.75
77.9 82 86.1
86.45 91 95.55
95 100 105
Test Current

IZ (mA)

11.5
10.5
9.5
8.5
7.5
7
6.5
6
5.5
5
4.5
4
3.7
3.3
3
2.8
2.5
Max. Zener Impedance

ZZ @ IZ ZZK @ IZK

(Ω) IZK (Ω) (mA)

23 750 0.25
25 750 0.25
35 750 0.25
40
1000
0.25
45
1000
0.25
50
1000
0.25
60
1000
0.25
70
1500
0.25
80
1500
0.25
95
1500
0.25
110
2000
0.25
125
2000
0.25
150
2000
0.25
175
2000
0.25
200
3000
0.25
250
3000
0.25
350
3000
0.25
Leakage Current

IR

(µA)

VR

(V)
5 16.7
5 18.2
5 20.6
5 22.8
5 25.1
5 27.4
5 29.7
5 32.7
5 35.8
5 38.8
5 42.6
5 47.1
5 51.7
5 56
5 62.2
5 69.2
5 76
Notes:

1. Zener Voltage (VZ)

The zener voltage is measured with the device junction in the thermal equilibrium at the lead temperature (TL) at 30°C ± 1°C and 3/8” lead length.

1N4728A — 1N4764A Rev. G2
2
www.fairchildsemi.com

Top Mark Information
Device
1N4728A
1N4729A
1N4730A
1N4731A
1N4732A
1N4733A
1N4734A
1N4735A
1N4736A
1N4737A
1N4738A
1N4739A
1N4740A
1N4741A
1N4742A
1N4743A
1N4744A
1N4745A
1N4746A
1N4747A
1N4748A
1N4749A
1N4750A
1N4751A
1N4752A
1N4753A
1N4754A
1N4755A
1N4756A
1N4757A
1N4758A
1N4759A
1N4760A
1N4761A
1N4762A
1N4763A
1N4764A
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1N4728A — 1N4764A Rev. G2
3
www.fairchildsemi.com