1N4727...1N4764
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 and suffix "B"
for ±2% tolerance. Other tolerances are available upon
request.
Max. 2.8
Black
Cathode Band
Black
Part No.
Black
"ST" Brand
Max. 0.7
Min. 25.4
XXX
ST
Max. 4.2
Min. 25.4
Glass Case DO-41
Dimensions in mm
Absolute Maximum Ratings (T
a
= 25
O
C)
Parameter
Power Dissipation
Junction Temperature
Storage Temperature Range
1)
Symbol
P
tot
T
j
T
S
Value
1
1)
Unit
W
O
200
- 65 to + 200
C
C
O
Valid provided that leads at a distance of 8 mm from case are kept at ambient temperature.
Characteristics at T
a
= 25
O
C
Parameter
Thermal Resistance Junction to Ambient Air
Forward Voltage
at I
F
= 200 mA
1)
Symbol
R
thA
V
F
Max.
170
1)
1.2
Unit
K/W
V
Valid provided that leads at a distance of 8 mm from case are kept at ambient temperature.
SEMTECH ELECTRONICS LTD.
®
(Subsidiary
of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
Dated : 12/06/2007
1N4727...1N4764
Zener Voltage
Range
3), 5)
V
Znom
l
ZT
V
mA
Maximum Zener Impedance
1)
r
ZJT
Ω
r
ZJK
Ω
at I
ZK
mA
Maximum Reverse
Leakage Current
I
R
at V
R
µA
V
Maximum Surge
Current
4)
at T
a
= 25
O
C
I
ZSM
(mA)
Maximum
Regulator
Current
2)
I
ZM
(mA)
Type
1N4727
3
83
10
400
1
150
1
1375
275
1N4728
3.3
76
10
400
1
150
1
1375
275
1N4729
3.6
69
10
400
1
100
1
1260
252
1N4730
3.9
64
9
400
1
100
1
1190
234
1N4731
4.3
58
9
400
1
50
1
1070
217
1N4732
4.7
53
8
500
1
10
1
970
193
1N4733
5.1
49
7
550
1
10
1
890
178
1N4734
5.6
45
5
600
1
10
2
810
162
1N4735
6.2
41
2
700
1
10
3
730
146
1N4736
6.8
37
3.5
700
1
10
4
660
133
1N4737
7.5
34
4
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
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
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
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
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
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
60
12
1N4762
82
3
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
45
9
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.
4)
The rating listed in the electrical characteristics table is maximum peak, non-repetitive, reverse surge current of 1/2 square
wave or equivalent sine wave pulse of 1/120 second duration superimposed on the test current I
ZT
.
5)
Tested with pulses tp = 20 ms.
SEMTECH ELECTRONICS LTD.
®
(Subsidiary
of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
Dated : 12/06/2007
1N4727...1N4764
Breakdowm characteristics
T
j
=constant(pulsed)
mA
100
IN4730
IN47
29
IN...
T
j
=25
o
C
IN4727
IN4731
IN4732
IN4733
80
70
Iz
60
50
40
30
20
10
0
0
IN4728
IN4734
IN4735
IN4736
90
IN4737
IN4738
IN4739
IN4740
1
2
3
4
5
6
7
8
9
10
IN4741
11
12
Vz
IN4743
IN4744
mA
50
IN4742
IN4746
IN4747
IN4748
IN4749
IN...
T
j
=25
o
C
IN4750
IN4751
IN4752
40
IN4745
Iz
30
IN4753
IN4754
IN4755
IN4756
IN4757
IN4758
IN4761
20
IN4759
IN4760
IN4762
IN4763
10
0
0
10
20
30
40
50
60
70
80
90
100
110
120
Vz
SEMTECH ELECTRONICS LTD.
®
(Subsidiary
of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
Dated : 12/06/2007
IN4764
1N4727...1N4764
1.0
250
P
d
. Total Power Dissipation (W)
0.8
0.6
Thermal Resistance Junction
to Ambient (°C/W)
R
JA
200
150
0.4
100
0.2
50
0
0
0
100
200
0
5
10
15
20
25
30
T
A
, Ambient Temperature
Fig. 1 Power Dissipation vs Ambient Temperature
I, Lead Length (mm)
Fig. 2 Typical Thermal Resistance vs. Lead Length
1000
f=1MHz
T
A
=25°C
1000
Differential Zener Impedance ( )
C
j
, Diode Capacitance (pF)
Ω
Iz=1mA
2mA
5mA
10mA
20mA
1
100
V
R
=0V
V
R
=2V
V
R
=5V
V
R
=20V
V
R
=30V
100
10
10
1
0
10
20
30
40
50
60
1
10
100
Vz, Zener Voltage (V)
Fig. 3 Junction Capacitance vs Zener Voltage
Vz, Zener Voltage (V)
Fig. 4 Typical Zener Impedance vs. Zener Voltage
SEMTECH ELECTRONICS LTD.
®
(Subsidiary
of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
Dated : 12/06/2007
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