HTSEMI ZM4743

ZMM4728-4764
SILICON PLANAR POWER ZENER DIODES
LL-41
for use in stabilizing and clipping circuits with high power
rating. Standard Zener voltage tolerance is ±10%. Add suffix
“A” for ±5% tolerance and suffix “B” for ±2% tolerance. Other
tolerances available are upon request.
These diodes are also available in DO-41 case with the
type designation 1N4728...1N4764
.
Absolute Maximum Ratings (Ta = 25oC)
Symbol
Value
Unit
Ptot
1
Tj
175
O
-65 to +175
O
Zener Current see Table “Characteristics”
Power Dissipation
Junction Temperature
Storage Temperature Range
1)
TS
1)
W
C
C
Valid provided that electrodes are kept at ambient temperature.
Characteristics at Tamb = 25oC
Thermal Resistance
Junction to Ambient Air
Forward Voltage
at IF = 200mA
1)
Symbol
Min.
Typ.
Max.
Unit
RthA
-
-
1701)
K/W
VF
-
-
1.2
V
Valid provided that electrodes are kept at ambient temperature.
１　JinYu
semiconductor
www.htsemi.com
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ZMM4728-4764
Nominal
Zener
voltage3)
Test
current
Maximum Zener
Impedance1)
Maximum reverse
leakage current
Surge
current
Maximum
regulator
current2)
TYPE
at
IZT
Vz V
ZM4728
3.3
ZM4729
IZTmA
at
IZT
VzΩ
IR μA
at
VR V
at
TA = 25oC
IR mA
76
10
IZMmA
150
1
1375
3.6
69
275
1
100
1
1260
252
ZM4730
3.9
ZM4731
4.3
400
1
100
1
1190
234
400
1
50
1
1070
ZM4732
217
8
500
1
10
1
970
193
49
7
550
1
10
1
890
178
45
5
600
1
10
2
810
162
6.2
41
2
700
1
10
3
730
146
ZM4736
6.8
37
3.5
700
1
10
4
660
133
ZM4737
7.5
34
4.0
700
0.5
10
5
605
121
ZM4738
8.2
31
4.5
700
0.5
10
6
550
110
ZM4739
9.1
28
5.0
700
0.5
10
7
500
100
ZM4740
10
25
7
700
0.25
10
7.6
454
91
ZM4741
11
23
8
700
0.25
5
8.4
414
83
ZM4742
12
21
9
700
0.25
5
9.1
380
76
ZM4743
13
19
10
700
0.25
5
9.9
344
69
ZM4744
15
17
14
700
0.25
5
11.4
304
61
ZM4745
16
15.5
16
700
0.25
5
12.2
285
57
ZM4746
18
14
20
750
0.25
5
13.7
250
50
ZM4747
20
12.5
22
750
0.25
5
15.2
225
45
ZM4748
22
11.5
23
750
0.25
5
16.7
205
41
ZM4749
24
10.5
25
750
0.25
5
18.2
190
38
ZM4750
27
9.5
35
750
0.25
5
20.6
170
34
ZM4751
30
8.5
40
1000
0.25
5
22.8
150
30
ZM4752
33
7.5
45
1000
0.25
5
25.1
135
27
ZM4753
36
7.0
50
1000
0.25
5
27.4
125
25
ZM4754
39
6.5
60
1000
0.25
5
29.7
115
23
ZM4755
43
6.0
70
1500
0.25
5
32.7
110
22
ZM4756
47
5.5
80
1500
0.25
5
35.8
95
19
ZM4757
51
5.0
95
1500
0.25
5
38.8
90
18
ZM4758
56
4.5
110
2000
0.25
5
42.6
80
16
ZM4759
62
4.0
125
2000
0.25
5
47.1
70
14
ZM4760
68
3.7
150
2000
0.25
5
51.7
65
13
ZM4761
75
3.3
175
2000
0.25
5
56.0
60
12
ZM4762
82
3.0
200
3000
0.25
5
62.2
55
11
ZM4763
91
2.8
250
3000
0.25
5
69.2
50
10
ZM4764
100
2.5
350
3000
0.25
5
76
45
9
VzkΩ
at
IZKmA
400
1
10
400
64
9
58
9
4.7
53
ZM4733
5.1
ZM4734
5.6
ZM4735
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 (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 are kept at ambient temperature.
3) Measured under thermal equilibrium and DC test conditions.
4) Tested with pulses tp = 20 ms.
２
JinYu
semiconductor
www.htsemi.com
Ｄａｔｅ：２０１１／０５
ZMM4728-4764
Admissible power dissipation
versus ambient temperature
Valid provided that electrodes are kept
at ambient temperature
W
1.0
P tot
ZM4728...
0.8
0.6
0.4
0.2
0
0
100
o
200 C
Tamb
３
JinYu
semiconductor
www.htsemi.com
Ｄａｔｅ：２０１１／０５