1N4728 View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
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1N4728 Datasheet PDF : 4 Pages
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1N4728A - 1N4758A
Zener Diodes
Tolerance = 5%
April 2009
DO-41 Glass case
COLOR BAND DENOTES CATHODE
Absolute Maximum Ratings * Ta = 25°C unless otherwise noted
Symbol
Parameter
PD
Power Dissipation
@ TL 50C, Lead Length = 3/8”
Derate above 50C
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
Units
W
mW/C
C
Electrical Characteristics Ta = 25°C unless otherwise noted
Device
1N4728A
1N4729A
1N4730A
1N4731A
1N4732A
1N4733A
1N4734A
1N4735A
1N4736A
1N4737A
1N4738A
1N4739A
1N4740A
1N4741A
1N4742A
VZ (V) @ IZ (Note 1)
Min. Typ. Max.
3.135 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
Max. Zener Impedance
Test Current
IZ (mA)
ZZ @ IZ ZZK @ IZK
() IZK () (mA)
76
10
400
1
69
10
400
1
64
9
400
1
58
9
400
1
53
8
500
1
4.845 5.1 5.355
49
5.32 5.6 5.88
45
5.89 6.2 6.51
41
6.46 6.8 7.14
37
7.125 7.5 7.875
34
7
550
1
5
600
1
2
700
1
3.5
700
1
4
700
0.5
7.79 8.2 8.61
31
8.645 9.1 9.555
28
9.5
10 10.5
25
10.45 11 11.55
23
11.4
12
12.6
21
4.5
700
0.5
5
700
0.5
7
700
0.25
8
700
0.25
9
700
0.25
Leakage
Current
IR
VR
(A) (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
Non-Repetitive
Peak Reverse
Current
IZSM (mA) (Note 2)
1380
1260
1190
1070
970
890
810
730
660
605
550
500
454
414
380
© 2009 Fairchild Semiconductor Corporation
1N4728A - 1N4758A Rev. H3
1
www.fairchildsemi.com
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