ZM4728 THRU ZM4764
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.
These diodes are also available in DO-41 case with the
type designation 1N4728 thru 1N4764.
These diodes are delivered taped.
Details see Taping.
Weight approx. : 0.25g
DIMENSIONS
DIM
A
B
C
inches
Min.
0.189
0.092
0.016
Max.
0.205
0.100
-
Min.
4.8
2.35
0.4
mm
Max.
5.2
2.55
-
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
Note:
(1) Valid provided that electrodes are kept at ambient temperature.
P
tot
T
j
T
S
1
1)
W
175
-65 to +175
Characteristics
Thermal resistance
junction to ambient Air
a
t 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 electrodes are kept at ambient temperature.
1
Type
Nominal
Zener
voltage
range
3)
at I
ZT
V
z
V
Test
current
Maximum Zener Impedance
1)
Maximum reverse
leakage current
Surge
current at
T
A
=25
Maximum
regulator currnet
2)
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
at I
ZT
Z
ZT
Z
ZK
at I
ZK
mA
I
R
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
at V
R
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
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
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
ZM4728
ZM4729
ZM4730
ZM4731
ZM4732
ZM4733
ZM4734
ZM4735
ZM4736
ZM4737
ZM4738
ZM4739
ZM4740
ZM4741
ZM4742
ZM4743
ZM4744
ZM4745
ZM4746
ZM4747
ZM4748
ZM4749
ZM4750
ZM4751
ZM4752
ZM4753
ZM4754
ZM4755
ZM4756
ZM4757
ZM4758
ZM4759
ZM4760
ZM4761
ZM4762
ZM4763
ZM4764
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
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 electrodes are kept at ambient temperature.
(3) Measured under thermal equilibrium and DC test conditions.
2
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