1N4728A - 1N4758A — Zener Diodes
April 2009
1N4728A - 1N4758A
Zener Diodes
Tolerance = 5%
DO-41 Glass case
COLOR BAND DENOTES CATHODE
Absolute Maximum Ratings *
Symbol
P
D
T
a
= 25°C unless otherwise noted
Parameter
Power Dissipation
@ TL
50C, Lead Length = 3/8”
Derate above 50C
Value
1.0
6.67
-65 to +200
Units
W
mW/C
C
T
J
, T
STG
Operating and Storage Temperature Range
* These ratings are limiting values above which the serviceability of the diode may be impaired.
Electrical Characteristics
V
Z
(V) @ I
Z
(Note 1)
Device
Min.
1N4728A
1N4729A
1N4730A
1N4731A
1N4732A
1N4733A
1N4734A
1N4735A
1N4736A
1N4737A
1N4738A
1N4739A
1N4740A
1N4741A
1N4742A
3.135
3.42
3.705
4.085
4.465
4.845
5.32
5.89
6.46
7.125
7.79
8.645
9.5
10.45
11.4
T
a
= 25°C unless otherwise noted
Typ.
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
Test Current
I
Z
(mA)
Z
Z
@ I
Z
Z
ZK
@
Max.
()
I
ZK
()
3.465
3.78
4.095
4.515
4.935
5.355
5.88
6.51
7.14
7.875
8.61
9.555
10.5
11.55
12.6
76
69
64
58
53
49
45
41
37
34
31
28
25
23
21
10
10
9
9
8
7
5
2
3.5
4
4.5
5
7
8
9
400
400
400
400
500
550
600
700
700
700
700
700
700
700
700
Max. Zener Impedance
I
ZK
(mA)
1
1
1
1
1
1
1
1
1
0.5
0.5
0.5
0.25
0.25
0.25
Leakage
Current
I
R
(A)
100
100
50
10
10
10
10
10
10
10
10
10
10
5
5
V
R
(V)
1
1
1
1
1
1
2
3
4
5
6
7
7.6
8.4
9.1
Non-Repetitive
Peak Reverse
Current
I
ZSM
(mA)
(Note 2)
1380
1260
1190
1070
970
890
810
730
660
605
550
500
454
414
380
© 2009 Fairchild Semiconductor Corporation
1N4728A - 1N4758A Rev. H3
1
www.fairchildsemi.com
1N4728A - 1N4758A — Zener Diodes
V
Z
(V) @ I
Z
(Note 1)
Device
Min.
1N4743A
1N4744A
1N4745A
1N4746A
1N4747A
1N4748A
1N4749A
1N4750A
1N4751A
1N4752A
1N4753A
1N4754A
1N4755A
1N4756A
1N4757A
1N4758A
Notes:
Typ.
13
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
Test Current
I
Z
(mA)
Z
Z
@ I
Z
Z
ZK
@
Max.
()
I
ZK
()
13.65
15.75
16.8
18.9
21
23.1
25.2
28.35
31.5
34.65
37.8
40.95
45.15
49.35
53.55
58.8
19
17
15.5
14
12.5
11.5
10.5
9.5
8.5
7.5
7
6.5
6
5.5
5
4.5
10
14
16
20
22
23
25
35
40
45
50
60
70
80
95
110
700
700
700
750
750
750
750
750
1000
1000
1000
1000
1500
1500
1500
2000
Max. Zener Impedance
I
ZK
(mA)
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
Leakage
Current
I
R
(A)
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
V
R
(V)
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
Non-Repetitive
Peak Reverse
Current
I
ZSM
(mA)
(Note 2)
344
304
285
250
225
205
190
170
150
135
125
115
110
95
90
80
12.35
14.25
15.2
17.1
19
20.9
22.8
25.65
28.5
31.35
34.2
37.05
40.85
44.65
48.45
53.2
1. Zener Voltage (V
Z
)
The zener voltage is measured with the device junction in the thermal equilibrium at the lead temperature (T
L
) at 30C ± 1C and 3/8” lead length.
2. 2 Square wave Reverse Surge at 8.3 msec soak time.
Top Mark Information
Device
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
Line 1
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
LOGO
Line 2
47
47
47
47
47
47
47
47
47
47
47
47
47
47
47
47
47
47
47
47
47
47
47
47
47
47
47
47
47
47
47
Line 3
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Line 4
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
Line 5
XY
XY
XY
XY
XY
XY
XY
XY
XY
XY
XY
XY
XY
XY
XY
XY
XY
XY
XY
XY
XY
XY
XY
XY
XY
XY
XY
XY
XY
XY
XY
www.fairchildsemi.com
© 2009 Fairchild Semiconductor Corporation
1N4728A - 1N4758A Rev. H3
2
1N4728A - 1N4758A — Zener Diodes
Top Mark Information
(Continued)
47
36
A
XY
F
1
st
line: F - Fairchild Logo
2
nd
line: Device Name - 3
rd
to 4
th
characters of device name for 1Nxx series
or 4
th
to 6
th
characters for BZXyy series
3
rd
line: Device Name - 5
th
to 6
th
characters of device name for 1Nxx series
or Voltage rating for BZXyy series
4
th
line: Device Name - 7
th
to 8
th
characters of device name for 1Nxx series
or Large Die identification only for BZXyy series
th
line: Date Code - Two Digit - Six Weeks Date Code
5
F
General Requirements:
1.0 Cathode Band
2.0 First Line: F - Fairchild Logo
3.0 Second Line: Device name - For 1Nxx series: 3
rd
to 4
th
characters of the device name.
For BZxx series: 4
th
to 6
th
characters of the device name.
4.0 Third Line: Device name - For 1Nxx series: 5
th
to 6
th
characters of the device name.
For BZXyy series: Voltage rating
5.0 Third Line: Device name - For 1Nxx series: 7
th
to 8
th
characters of the device name.
(the 8th character is the large die identification)
For BZXyy series: Large Die Identification character
6.0 Fourth Line: Date Code - Two Digit - Six Weeks Date Code
Where: X represents the last digit of the calendar year
Y represents the Six weeks numeric code
7.0 Devices shall be marked as required in the device specification (PID or FSC Test Spec).
8.0 Maximum no. of marking lines: 5
9.0 Maximum no. of digits per line: 3
10.0 FSC logo must be 20 % taller than the alphanumeric marking and should occupy the 2 characters of the specified line.
11.0 Marking Font: Arial (Except FSC Logo)
12.0 First character of each marking line must be aligned vertically.
13.0 All device markings must be based on Fairchild device specification.
© 2009 Fairchild Semiconductor Corporation
1N4728A - 1N4758A Rev. H3
3
www.fairchildsemi.com
stm32/stm8
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