1N4728A THRU 1N4764A
SILICON ZENER DIODES
1.0 WATT, 3.3 THRU 100 VOLT
5% TOLERANCE
w w w. c e n t r a l s e m i . c o m
DESCRIPTION:
The CENTRAL SEMICONDUCTOR 1N4728A series
silicon Zener diode is a highly reliable voltage regulator
designed for use in industrial, commercial, entertainment
and computer applications.
MARKING: FULL PART NUMBER
ral
Cent
DO-41 CASE
MAXIMUM RATINGS:
Power Dissipation (TA=50°C)
Operating and Storage Temperature
SYMBOL
PD
TJ, Tstg
UNITS
W
°C
1.0
-65 to +200
ELECTRICAL CHARACTERISTICS:
(TA=25°C) VF=1.2V MAX @ IF=200mA (for all types)
ZENER
VOLTAGE
VZ @ IZT
MIN
V
1N4728A
1N4729A
1N4730A
1N4731A
1N4732A
1N4733A
1N4734A
1N4735A
1N4736A
1N4737A
1N4738A
1N4739A
1N4740A
1N4741A
1N4742A
1N4743A
1N4744A
1N4745A
1N4746A
1N4747A
1N4748A
1N4749A
1N4750A
3.135
3.420
3.705
4.085
4.465
4.845
5.320
5.890
6.460
7.125
7.790
8.645
9.500
10.45
11.40
12.35
14.25
15.20
17.10
19.00
20.90
22.80
25.65
NOM
V
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
MAX
V
3.465
3.780
4.095
4.515
4.935
5.355
5.880
6.510
7.140
7.875
8.610
9.555
10.50
11.55
12.60
13.65
15.75
16.80
18.90
21.00
23.10
25.20
28.35
TEST
CURRENT
IZT
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
MAXIMUM
ZENER IMPEDANCE
ZZT @ IZT
Ω
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
ZZK @
Ω
400
400
400
400
500
550
600
700
700
700
700
700
700
700
700
700
700
700
750
750
750
750
750
IZK
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
MAXIMUM
REVERSE
CURRENT
IR @ VR
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
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
MAXIMUM
DC
CURRENT
IZM
mA
1380
1260
1190
1070
970
890
810
730
660
605
550
500
454
414
380
344
304
285
250
225
205
190
170
MAXIMUM
TEMPERATURE
COEFFICIENT
@ IZT
ΘV
Z
% / °C
-0.08 to -0.05
-0.08 to -0.05
-0.07 to -0.02
-0.07 to -0.01
-0.03 to +0.04
-0.01 to +0.04
0 to +0.045
+0.01 to +0.055
+0.015 to +0.06
+0.02 to +0.065
+0.03 to +0.07
+0.035 to +0.075
+0.04 to +0.08
+0.045 to +0.08
+0.045 to +0.085
+0.05 to +0.085
+0.055 to +0.09
+0.055 to +0.09
+0.06 to +0.09
+0.06 to +0.09
+0.06 to +0.095
+0.06 to +0.095
+0.06 to +0.095
TYPE
R2 (14-October 2013)
1N4728A THRU 1N4764A
SILICON ZENER DIODES
1.0 WATT, 3.3 THRU 100 VOLT
5% TOLERANCE
ELECTRICAL CHARACTERISTICS - Continued:
(TA=25°C) VF=1.2V MAX @ IF=200mA (for all types)
ZENER
VOLTAGE
VZ @ IZT
MIN
V
1N4751A
1N4752A
1N4753A
1N4754A
1N4755A
1N4756A
1N4757A
1N4758A
1N4759A
1N4760A
1N4761A
1N4762A
1N4763A
1N4764A
28.50
31.35
34.20
37.05
40.85
44.65
48.45
53.20
58.90
64.60
71.25
77.90
86.45
95.00
NOM
V
30
33
36
39
43
47
51
56
62
68
75
82
91
100
MAX
V
31.50
34.65
37.80
40.95
45.15
49.35
53.55
58.80
65.10
71.40
78.75
86.10
95.55
105.0
TEST
CURRENT
IZT
mA
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
ZZT @ IZT
Ω
40
45
50
60
70
80
95
110
125
150
175
200
250
350
ZZK @
Ω
1.0K
1.0K
1.0K
1.0K
1.5K
1.5K
1.5K
2.0K
2.0K
2.0K
2.0K
3.0K
3.0K
3.0K
IZK
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
MAXIMUM
REVERSE
CURRENT
IR @ VR
μA
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
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
MAXIMUM
DC
CURRENT
IZM
mA
150
135
125
115
110
95
90
80
70
65
60
55
50
45
MAXIMUM
TEMPERATURE
COEFFICIENT
@ IZT
ΘV
Z
% / °C
+0.06 to +0.095
+0.06 to +0.095
+0.06 to +0.095
+0.06 to +0.095
+0.06 to +0.095
+0.06 to +0.095
+0.06 to +0.095
+0.06 to +0.095
+0.06 to +0.095
+0.06 to +0.095
+0.06 to +0.095
+0.06 to +0.095
+0.06 to +0.095
+0.06 to +0.095
TYPE
DO-41 CASE - MECHANICAL OUTLINE
R2
R2 (14-October 2013)
w w w. c e n t r a l s e m i . c o m
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PRODUCT SUPPORT
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Central’s applications engineering team is ready to discuss your design challenges. Just ask.
• Free quick ship samples (2
nd
day air)
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• Application and design sample kits
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REQUESTING PRODUCT PLATING
1.
2.
If requesting Tin/Lead plated devices, add the suffix “ TIN/LEAD” to the part number when
ordering (example: 2N2222A TIN/LEAD).
If requesting Lead (Pb) Free plated devices, add the suffix “ PBFREE” to the part number
when ordering (example: 2N2222A PBFREE).
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w w w. c e n t r a l s e m i . c o m
(001)
http://www.centralsemi.com
PDN01045
8/19/16
2/19/17
8/19/17
Summary:The 1N4728A, 1N4729A, 1N4730A, and 1N4731A, 1 watt Zener diodes in the DO-41 case are discontinued and now classified as End
of Life (EOL).
Although Central Semiconductor Corp. makes every effort to continue to produce devices that have been proclaimed EOL (End of Life) by
various manufacturers, it is an accepted industry practice to discontinue certain devices when customer demand falls below a minimum
level of sustainability. Accordingly, the following product(s) have been transitioned to End of Life status as part of Central's
Product Management Process. Any replacement product will be noted below. The effective date for placing the last purchase order will
be six(6) months from the date of this notice and twelve(12) months from the notice date for final shipments; this may be extended if
inventory is available.
_________________________
Central Part Number
_________________________
Replacement
1N4728A BK
N/A
1N4728A TR
N/A
1N4729A BK
N/A
1N4729A TR
N/A
1N4730A BK
N/A
1N4730A TR
N/A
1N4730C BK
N/A
1N4731A BK
N/A
1N4731A TR
N/A
Central would be happy to assist you by providing additional information or technical data to help locate an alternate source if we
have no replacement available. Please email your requests to engineering@centralsemi.com.
http://www.centralsemi.com
PDN01010
11/02/15
5/02/16
11/02/16
Summary:1 Watt, High Voltage (82V thru 100V), glass body Zener diodes manufactured in the DO-41 and MELF packages are discontinued
and now classified as End of Life (EOL).
Although Central Semiconductor Corp. makes every effort to continue to produce devices that have been proclaimed EOL (End of Life) by
various manufacturers, it is an accepted industry practice to discontinue certain devices when customer demand falls below a minimum
level of sustainability. Accordingly, the following product(s) have been transitioned to End of Life status as part of Central's
Product Management Process. Any replacement product will be noted below. The effective date for placing the last purchase order will
be six(6) months from the date of this notice and twelve(12) months from the notice date for final shipments; this may be extended if
inventory is available.
_________________________
Central Part Number
_________________________
Replacement
CLL4762A BK
N/A
CLL4762A TR
N/A
CLL4762C BK
N/A
CLL4762C TR
N/A
CLL4763A BK
N/A
CLL4763A TR
N/A
CLL4764 TR
N/A
CLL4764A BK
N/A
CLL4764A TR
N/A
1N4762A BK
N/A
1N4762A TR
N/A
1N4763A BK
N/A
1N4763A TR
N/A
1N4764 BK
N/A
1N4764 TR
N/A
1N4764A BK
N/A
1N4764A TR
N/A
Central would be happy to assist you by providing additional information or technical data to help locate an alternate source if we
have no replacement available. Please email your requests to engineering@centralsemi.com.
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