1N4728A.pdf

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1N4728A - 1N4764A
1.0W ZENER DIODE
Features
·
·
·
1.0 Watt Power Dissipation
3.3V - 100V Nominal Zener Voltage
Standard V
Z
Tolerance is 5%
A
B
A
Mechanical Data
·
·
·
·
·
Case: DO-41, Glass
Terminals: Solderable per MIL-STD-202,
Method 208
Polarity: Cathode Band
Marking: Type Number
Approx. Weight: 0.35 grams
Dim
A
B
C
D
Min
25.40
—
—
—
D
DO-41 Glass
Max
—
4.70
0.863
2.71
C
All Dimensions in mm
Maximum Ratings
@ T
A
= 25°C unless otherwise specified
Symbol
I
Z
(Note 1)
P
d
R
qJA
V
F
T
j
, T
STG
Value
Pd / V
Z
1.0
6.67
175
1.2
-65 to + 200
Unit
mA
W
mW/°C
°C/W
V
°C
Characteristic
Zener Current (see Table page 2)
Power Dissipation
Derate Above 50°C
Thermal Resistance - Junction to Ambient Air
Forward Voltage @ I
F
= 200 mA
Operating and Storage Temperature Range
Note:
1. Valid provided that leads are kept at T
L
£
50°C with lead length = 9.5mm (3/8”) from case.
DS18007 Rev. 11 - 2
1 of 3
1N4728A-1N4764A
Electrical Characteristics
Nominal
Zener
Voltage
(Note 2)
V
Z
@ I
ZT
(V)
1N4728A
1N4729A
1N4730A
1N4731A
1N4732A
1N4733A
1N4734A
1N4735A
1N4736A
1N4737A
1N4738A
1N4739A
1N4740A
1N4741A
1N4742A
1N4743A
1N4744A
1N4745A
1N4746A
1N4747A
1N4748A
1N4749A
1N4750A
1N4751A
1N4752A
1N4753A
1N4754A
1N4755A
1N4756A
1N4757A
1N4758A
1N4759A
1N4760A
1N4761A
1N4762A
1N4763A
1N4764A
Notes:
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
@ T
A
= 25°C unless otherwise specified
Test Current
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
Maximum Zener Impedance (Note 3)
Z
ZT
@ I
ZT
(W)
10
10
9.0
9.0
8.0
7.0
5.0
2.0
3.5
4.0
4.5
5.0
7.0
8.0
9.0
10
14
16
20
22
23
25
35
40
45
50
60
70
80
95
110
125
150
175
200
250
350
Z
ZK
@ I
ZK
(W)
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
I
ZK
(mA)
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
Type
Number
Maximum Reverse Leakage
Current
I
R
(µA)
100
100
50
10
10
10
10
10
10
10
10
10
10
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
@ V
R
(V)
1.0
1.0
1.0
1.0
1.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
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
Max Surge
Current
8.3ms
I
ZS
(mA)
1380
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
2. Measured under thermal equilibrium and dc (I
ZT
) test conditions.
3. 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.
DS18007 Rev. 11 - 2
2 of 3
1N4728A-1N4764A
1.0
P
d
, TOTAL POWER DISSIPATION (W)
0.8
0.6
0.4
0.2
0
0
40
80
120
160
200
T
A
, AMBIENT TEMPERATURE
Fig.1 Power Dissipation vs Ambient Temperature
DS18007 Rev. 11 - 2
3 of 3
1N4728A-1N4764A

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