CE
1N4728 THRU 1N4764
CHENYI ELECTRONICS
1W SILICON PLANAR ZENER DIODES
FEATURES
. Silicon planar power zener diodes
For use in stabilizing and clipping circuits with high power rating.
. Standaards Zener voltage toerance is 10%
Add suffix"A" for 5% tolerance Other tolerance available upon
request
MECHANICAL DATA
.
Case: DO-41 glass case
.
weight: Approx. 0.35 gram
ABSOLUTE MAXIMUM RATINGS(LIMITING VALUES)(T
A
=25 )
Symbols
Value
Units
Zener current see table "Characteristics"
Power dissipation at TA=25
P
tot
mW
Junction temperature
T
J
Storage temperature range
T
STG
1)Valid provided that a distance of 8mm from case are kept at ambient temperature
ELECTRCAL CHARACTERISTICS(T
A
=25 )
Symbols
Min
Typ
Max
Units
Thermal resistance junction to ambient
R
thA
170
1)
/W
Forward voltage at IF=200mA
V
F
1.2
V
1) Valid provided that a distance at 8mm from case are kept at ambient temperature
1
1)
175
-65 to +175
Copyright @ 2000 SHANGHAI CHENYI ELECTRONICS CO.,LTD
Page 1 of 3
CE
1N4728 THRU 1N4764
CHENYI ELECTRONICS
1W SILICON PLANAR ZENER DIODES
1N4728...1N4764 SILICON PLANAR ZENER DIODES
Nominal
Test
Surge
Maximum
Zener
Current
current
regulator
Type
Voltage
3)
Current
2)
at
at
at
at
T
A
=0.25
I
ZT
I
ZT
Z
ZK
I
ZK
at
V
R
IR
IZM
V
Z
V
I
ZT
mA
Z
ZT
mA
I
R
A
V
mA
mA
1N4728
3.3
76
10
1.0
1380
276
1N4729
3.6
69
10
1.0
1260
252
1N4730
3.9
64
9
50
1.0
1190
234
1N4731
4.3
58
9
1.0
1070
217
1N4732
4.7
53
8
500
1.0
970
193
1N4733
5.1
49
7
550
1.0
890
178
1N4734
5.6
45
5
600
2.0
810
162
1N4735
6.2
41
2
3.0
730
146
1N4736
6.8
37
3.5
4.0
660
133
1N4737
7.5
34
4.0
5.0
605
121
1N4738
8.2
31
4.5
6.0
550
110
1N4739
9.1
28
5.0
7.0
500
100
1N4740
10
25
7
7.6
454
91
1N4741
11
23
8
8.4
414
83
1N4742
12
21
9
9.1
380
76
1N4743
13
19
10
9.9
344
69
1N4744
15
17
14
11.4
304
61
1N4745
16
15.5
16
12.2
285
57
1N4746
18
14
20
13.7
250
50
1N4747
20
12.5
22
15.2
225
45
1N4748
22
11.5
23
16.7
205
41
1N4749
24
10.5
25
18.2
190
38
1N4750
27
9.5
35
20.6
170
34
1N4751
30
8.5
40
22.8
150
30
1N4752
33
7.5
45
25.1
135
27
1N4753
36
7.0
50
27.4
125
25
1N4754
39
6.5
60
29.7
115
23
1N4755
43
6.0
70
32.7
110
22
1N4756
47
5.5
80
35.8
95
19
1N4757
51
5.0
95
38.8
90
18
1N4758
56
4.5
110
42.6
80
16
1N4759
62
4.0
125
47.1
70
14
1N4760
68
3.7
150
51.7
65
13
1N4761
75
3.3
175
56.0
60
12
1N4762
82
3.0
200
62.2
55
11
1N4763
91
2.8
250
69.2
50
10
1N4764
100
2.5
350
76.0
45
9
Notes:1) The Zener impedance is derived from the 1KHz AC voltage which results when an AC current having an RMS calue equal to 10% of the Zener
current(IZT or IZK) is superimposed on IZT or IZK. 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 at a distance of 10mm from case are kept at ambient temperature
3)Measured under thermal equilibriun and DC test conditions.
100
10
5
Maximum Zener Impedance
1)
Maximum
reverse leakage current
1500
2000
3000
1.0
5.0
0.25
400
700
750
1000
Copyright @ 2000 SHANGHAI CHENYI ELECTRONICS CO.,LTD
Page 2 of 3
CE
1N4728 THRU 1N4764
CHENYI ELECTRONICS
1W SILICON PLANAR ZENER DIODES
RATINGS AND CHARACTERISTIC CURVES 1N4728 THRI 1N4764
Admissible power dissipation versus ambient temperature
(Valid provided that leads at a distance of 10mm from case
are kept at ambient temperature)
Copyright @ 2000 SHANGHAI CHENYI ELECTRONICS CO.,LTD
Page 3 of 3
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