1N4728 THRU 1N4764
SILICON PLANAR POWER ZENER DIODES
Features
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.
DIM ENSIONS
DIM
A
B
C
D
inches
Min.
-
-
-
1.102
Max.
0.169
0.110
0.031
-
Min.
-
-
-
28.0
mm
Max.
4.3
2.8
0.8
-
Note
Absolute Maximum Ratings
(T
a
=25
)
Symbols
Values
Units
Zener current see Table "Characteristics"
Power dissipation at T
amb
=25
Junction temperature
Storage temperature range
P
tot
T
j
T
S
1
1)
W
200
-65 to +200
Note:
(1) Valid provided that leads at a distance of 8 mm from case are kept at ambient temperature.
Characteristics
Thermal resistance
junction to ambient Air
at
T
amb
=25
Symbols
Min.
Typ.
Max.
Units
R
thA
V
F
-
-
-
-
170
1.2
1)
K/W
V
Forward voltage at I
F
=200mA
Note:
(1) Valid provided that leads at a distance of 8 mm from case are kept at ambient temperature.
1
Zener voltage
range
3)
Type
V
znom
V
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
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.2
6.8
7.5
8.2
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
I
ZT
mA
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
Maximum Zener Impedance
1)
Reverse leakage
current
I
R
at V
R
mA
uA
150
100
100
50
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
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
56.0
62.2
69.2
76.0
Surge
current at
T
A
=25
I
R
mA
1375
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
Maximum
regulator current
I
ZM
mA
275
252
234
217
193
178
162
146
133
121
110
100
91
83
76
69
61
57
50
45
41
38
34
30
27
25
23
22
19
18
16
14
13
12
11
10
9
2)
r
zjT
and r
zjk
at I
ZK
10
10
9
9
8
7
5
2
3.5
4.0
4.5
5.0
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
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
1000
1000
1500
1500
1500
2000
2000
2000
2000
3000
3000
3000
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
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
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.
2
详细参数
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