1N4727A...1N4764A
SILICON PLANAR POWER ZENER DIODES
Max. 0.7
for use in stabilizing and clipping circuits with high
power rating.
Max. 2.8
Min. 25.4
Black
Cathode Band
Black
Part No.
Black
"ST" Brand
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.
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1N4727A...1N4764A
Zener Voltage Range
3), 5)
Type
V
Znom
V
Z
l
ZT
Maximum Zener
Impedance
1)
r
ZJT
r
ZJK
at I
ZK
Maximum Reverse Maximum Surge Maximum
Leakage Current
Current
4)
Regulator
O
Current
2)
I
R
at V
R
at T
a
= 25 C
I
ZM
(mA)
V
mA
Ω
Ω
mA
µA
V
I
ZSM
(mA)
V
1N4727A
3
2.85…3.15
83
10
400
1
150
1
1375
275
1N4728A
3.3
3.13…3.47
76
10
400
1
150
1
1375
275
1N4729A
3.6
3.42…3.78
69
10
400
1
100
1
1260
252
1N4730A
3.9
3.7…4.1
64
9
400
1
100
1
1190
234
1N4731A
4.3
4.08…4.52
58
9
400
1
50
1
1070
217
1N4732A
4.7
4.46…4.94
53
8
500
1
10
1
970
193
1N4733A
5.1
4.84…5.36
49
7
550
1
10
1
890
178
1N4734A
5.6
5.32…5.88
45
5
600
1
10
2
810
162
1N4735A
6.2
5.89…6.51
41
2
700
1
10
3
730
146
1N4736A
6.8
6.46…7.14
37
3.5
700
1
10
4
660
133
1N4737A
7.5
7.12…7.88
34
4
700
0.5
10
5
605
121
1N4738A
8.2
7.79…8.61
31
4.5
700
0.5
10
6
550
110
1N4739A
9.1
8.64…9.56
28
5
700
0.5
10
7
500
100
1N4740A
10
9.5…10.5
25
7
700
0.25
10
7.6
454
91
1N4741A
11
10.45…11.55
23
8
700
0.25
5
8.4
414
83
1N4742A
12
11.4…12.6
21
9
700
0.25
5
9.1
380
76
1N4743A
13
12.35…13.65
19
10
700
0.25
5
9.9
344
69
1N4744A
15
14.25…15.75
17
14
700
0.25
5
11.4
304
61
1N4745A
16
15.2…16.8
15.5
16
700
0.25
5
12.2
285
57
1N4746A
18
17.1…18.9
14
20
750
0.25
5
13.7
250
50
1N4747A
20
19…21
12.5
22
750
0.25
5
15.2
225
45
1N4748A
22
20.9…23.1
11.5
23
750
0.25
5
16.7
205
41
1N4749A
24
22.8…25.2
10.5
25
750
0.25
5
18.2
190
38
1N4750A
27
25.65…28.35
9.5
35
750
0.25
5
20.6
170
34
1N4751A
30
28.5…31.5
8.5
40
1000
0.25
5
22.8
150
30
1N4752A
33
31.35…34.65
7.5
45
1000
0.25
5
25.1
135
27
1N4753A
36
34.2…37.8
7
50
1000
0.25
5
27.4
125
25
1N4754A
39
37.05…40.95
6.5
60
1000
0.25
5
29.7
115
23
1N4755A
43
40.85…45.15
6
70
1500
0.25
5
32.7
110
22
1N4756A
47
44.65…49.35
5.5
80
1500
0.25
5
35.8
95
19
1N4757A
51
48.45…53.55
5
95
1500
0.25
5
38.8
90
18
1N4758A
56
53.2…58.8
4.5
110
2000
0.25
5
42.6
80
16
1N4759A
62
58.9…65.1
4
125
2000
0.25
5
47.1
70
14
1N4760A
68
64.6…71.4
3.7
150
2000
0.25
5
51.7
65
13
1N4761A
75
71.25…78.75
3.3
175
2000
0.25
5
56
60
12
1N4762A
82
77.9…86.1
3
200
3000
0.25
5
62.2
55
11
1N4763A
91
86.45…95.55
2.8
250
3000
0.25
5
69.2
50
10
1N4764A
100
95…105
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.
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Iz
Iz
mA
50
30
40
20
mA
100
10
30
50
60
70
80
90
20
40
10
0
0
0
1
IN4742
IN4745
IN4743
IN4744
T
j
=constant(pulsed)
1N4727A...1N4764A
Breakdowm characteristics
0
2
IN4746
IN4747
IN4748
IN4749
IN4727
IN4728
IN4730
IN47
29
10
3
IN4750
IN4751
IN4752
20
4
IN4753
IN4754
IN4755
IN4756
IN4731
IN4732
30
5
IN4757
IN4758
40
6
IN4759
50
Vz
IN4760
IN4733
IN4734
60
IN4735
IN4736
Vz
7
IN4761
70
8
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IN4737
IN4738
IN4739
IN4762
80
IN4763
IN4764
9
90
T
j
=25
o
C
IN...
IN4740
10
100
IN4741
11
110
T
j
=25
o
C
IN...
12
120
1N4727A...1N4764A
1.0
250
P
d
. Total Power Dissipation (W)
Thermal Resistance Junction
to Ambient (°C/W)
R
JA
0.8
200
0.6
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 ( )
Ω
C
j
, Diode Capacitance (pF)
Iz=1mA
100
2mA
5mA
10mA
20mA
10
100
V
R
=0V
V
R
=2V
V
R
=5V
V
R
=20V
V
R
=30V
10
1
0
10
20
30
40
50
60
1
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
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