Note:
(1) Valid provided that leads at a distance of 8 mm from case are kept at ambient temperature.
Features
1N4728 THRU 1N4764
SILICON PLANAR POWER ZENER DIODES
Silicon Planar Power Zener Diodes
for use in stabilizing and clipping circuits with high power
rating. Standard Zener voltage tolerance is 10%. Add
suffix A for 5% tolerance. Other tolerances available
upon request.
Absolute Maximum Ratings
(T
a
=25 )
1
Symbols
Values
Units
Zener current see Table "Characteristics"
Power dissipation at T
amb
=25
P
tot
1
1)
W
Junction temperature
T
j
200
Storage temperature range
T
S
-65 to +200
Note:
(1) Valid provided that leads at a distance of 8 mm from case are kept at ambient temperature.
Characteristics
at
T
amb
=25
Symbols
Min.
Typ.
Max.
Units
Thermal resistance
junction to ambient Air
R
thA
-
-
170
1)
K/W
Forward voltage at I
F
=200mA
V
F
-
-
1.2
V
DIMENSIONS
DIM
inches
mm
Note
Min.
Max.
Min.
Max.
A
-
0.169
-
4.3
B
-
0.110
-
2.8
C
-
0.031
-
0.8
D
1.102
-
28.0
-
Notes:
(1) The Zener Impedance is derived from the 60 Hz AC voltage which results when an AC current having an RMS value
equal to 10% of the Zener current (I
ZT
or I
ZK
) is superimposed on I
ZT
or I
ZK
. Zener Impedance is measured at two points
to insure a sharp knee on the breakdown curve and to eliminate unstable units.
(2) Valid provided that leads at a distance of 8 mm from case are kept at ambient temperature.
(3) Measured under thermal equilibrium and DC test conditions.
Type
Zener voltage
range
3)
Maximum Zener Impedance
1)
Reverse leakage
current
Surge
current at
T
A
=25
Maximum
regulator current
2)
V
znom
I
ZT
r
zjT
and r
zjk
at I
ZK
I
R
at V
R
I
R
I
ZM
V
mA
mA
uA
V
mA
mA
1N4728
3.3
76
10
400
1.0
150
1
1375
275
1N4729
3.6
69
10
400
1.0
100
1
1260
252
1N4730
3.9
64
9
400
1.0
100
1
1190
234
1N4731
4.3
58
9
400
1.0
50
1
1070
217
1N4732
4.7
53
8
500
1.0
10
1
970
193
1N4733
5.1
49
7
550
1.0
10
1
890
178
1N4734
5.6
45
5
600
1.0
10
2
810
162
1N4735
6.2
41
2
700
1.0
10
3
730
146
1N4736
6.8
37
3.5
700
1.0
10
4
660
133
1N4737
7.5
34
4.0
700
0.5
10
5
605
121
1N4738
8.2
31
4.5
700
0.5
10
6
550
110
1N4739
9.1
28
5.0
700
0.5
10
7
500
100
1N4740
10
25
7
700
0.25
10
7.6
454
91
1N4741
11
23
8
700
0.25
5
8.4
414
83
1N4742
12
21
9
700
0.25
5
9.1
380
76
1N4743
13
19
10
700
0.25
5
9.9
344
69
1N4744
15
17
14
700
0.25
5
11.4
304
61
1N4745
16
15.5
16
700
0.25
5
12.2
285
57
1N4746
18
14
20
750
0.25
5
13.7
250
50
1N4747
20
12.5
22
750
0.25
5
15.2
225
45
1N4748
22
11.5
23
750
0.25
5
16.7
205
41
1N4749
24
10.5
25
750
0.25
5
18.2
190
38
1N4750
27
9.5
35
750
0.25
5
20.6
170
34
1N4751
30
8.5
40
1000
0.25
5
22.8
150
30
1N4752
33
7.5
45
1000
0.25
5
25.1
135
27
1N4753
36
7.0
50
1000
0.25
5
27.4
125
25
1N4754
39
6.5
60
1000
0.25
5
29.7
115
23
1N4755
43
6.0
70
1500
0.25
5
32.7
110
22
1N4756
47
5.5
80
1500
0.25
5
35.8
95
19
1N4757
51
5.0
95
1500
0.25
5
38.8
90
18
1N4758
56
4.5
110
2000
0.25
5
42.6
80
16
1N4759
62
4.0
125
2000
0.25
5
47.1
70
14
1N4760
68
3.7
150
2000
0.25
5
51.7
65
13
1N4761
75
3.3
175
2000
0.25
5
56.0
60
12
1N4762
82
3.0
200
3000
0.25
5
62.2
55
11
1N4763
91
2.8
250
3000
0.25
5
69.2
50
10
1N4764
100
2.5
350
3000
0.25
5
76.0
45
9
2
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