1N4728A THRU 1N4764A
w w w. c e n t r a l s e m i . c o m
SILICON ZENER DIODES
1.0 WATT, 3.3 THRU 100 VOLT
5% TOLERANCE
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
Centr
al
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
TYPE
TEST
CURRENT
MAXIMUM
ZENER IMPEDANCE
MAXIMUM
REVERSE
CURRENT
MAXIMUM
DC
CURRENT
MAXIMUM
TEMPERATURE
COEFFICIENT
@ IZT
MIN
NOM
MAX
IZT
ZZT @ IZT
ZZK @
IZK
IR @ VR
IZM
ΘVZ
V
V
V
mA
Ω
Ω
mA
μA
V
mA
% / °C
1N4728A
3.135
3.3
3.465
76
10
400
1.0
100
1.0
1380
-0.08 to -0.05
1N4729A
3.420
3.6
3.780
69
10
400
1.0
100
1.0
1260
-0.08 to -0.05
1N4730A
3.705
3.9
4.095
64
9.0
400
1.0
50
1.0
1190
-0.07 to -0.02
1N4731A
4.085
4.3
4.515
58
9.0
400
1.0
10
1.0
1070
-0.07 to -0.01
1N4732A
4.465
4.7
4.935
53
8.0
500
1.0
10
1.0
970
-0.03 to +0.04
1N4733A
4.845
5.1
5.355
49
7.0
550
1.0
10
1.0
890
-0.01 to +0.04
1N4734A
5.320
5.6
5.880
45
5.0
600
1.0
10
2.0
810
0 to +0.045
1N4735A
5.890
6.2
6.510
41
2.0
700
1.0
10
3.0
730
+0.01 to +0.055
1N4736A
6.460
6.8
7.140
37
3.5
700
1.0
10
4.0
660
+0.015 to +0.06
1N4737A
7.125
7.5
7.875
34
4.0
700
0.5
10
5.0
605
+0.02 to +0.065
1N4738A
7.790
8.2
8.610
31
4.5
700
0.5
10
6.0
550
+0.03 to +0.07
1N4739A
8.645
9.1
9.555
28
5.0
700
0.5
10
7.0
500
+0.035 to +0.075
1N4740A
9.500
10
10.50
25
7.0
700
0.25
10
7.6
454
+0.04 to +0.08
1N4741A
10.45
11
11.55
23
8.0
700
0.25
5.0
8.4
414
+0.045 to +0.08
1N4742A
11.40
12
12.60
21
9.0
700
0.25
5.0
9.1
380
+0.045 to +0.085
1N4743A
12.35
13
13.65
19
10
700
0.25
5.0
9.9
344
+0.05 to +0.085
1N4744A
14.25
15
15.75
17
14
700
0.25
5.0
11.4
304
+0.055 to +0.09
1N4745A
15.20
16
16.80
15.5
16
700
0.25
5.0
12.2
285
+0.055 to +0.09
1N4746A
17.10
18
18.90
14
20
750
0.25
5.0
13.7
250
+0.06 to +0.09
1N4747A
19.00
20
21.00
12.5
22
750
0.25
5.0
15.2
225
+0.06 to +0.09
1N4748A
20.90
22
23.10
11.5
23
750
0.25
5.0
16.7
205
+0.06 to +0.095
1N4749A
22.80
24
25.20
10.5
25
750
0.25
5.0
18.2
190
+0.06 to +0.095
1N4750A
25.65
27
28.35
9.5
35
750
0.25
5.0
20.6
170
+0.06 to +0.095
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
TYPE
TEST
CURRENT
MAXIMUM
ZENER IMPEDANCE
MAXIMUM
REVERSE
CURRENT
MAXIMUM
DC
CURRENT
MAXIMUM
TEMPERATURE
COEFFICIENT
@ IZT
MIN
NOM
MAX
IZT
ZZT @ IZT
ZZK @
IZK
IR @ VR
IZM
ΘVZ
V
V
V
mA
Ω
Ω
mA
μA
V
mA
% / °C
1N4751A
28.50
30
31.50
8.5
40
1.0K
0.25
5.0
22.8
150
+0.06 to +0.095
1N4752A
31.35
33
34.65
7.5
45
1.0K
0.25
5.0
25.1
135
+0.06 to +0.095
1N4753A
34.20
36
37.80
7.0
50
1.0K
0.25
5.0
27.4
125
+0.06 to +0.095
1N4754A
37.05
39
40.95
6.5
60
1.0K
0.25
5.0
29.7
115
+0.06 to +0.095
1N4755A
40.85
43
45.15
6.0
70
1.5K
0.25
5.0
32.7
110
+0.06 to +0.095
1N4756A
44.65
47
49.35
5.5
80
1.5K
0.25
5.0
35.8
95
+0.06 to +0.095
1N4757A
48.45
51
53.55
5.0
95
1.5K
0.25
5.0
38.8
90
+0.06 to +0.095
1N4758A
53.20
56
58.80
4.5
110
2.0K
0.25
5.0
42.6
80
+0.06 to +0.095
1N4759A
58.90
62
65.10
4.0
125
2.0K
0.25
5.0
47.1
70
+0.06 to +0.095
1N4760A
64.60
68
71.40
3.7
150
2.0K
0.25
5.0
51.7
65
+0.06 to +0.095
1N4761A
71.25
75
78.75
3.3
175
2.0K
0.25
5.0
56.0
60
+0.06 to +0.095
1N4762A
77.90
82
86.10
3.0
200
3.0K
0.25
5.0
62.2
55
+0.06 to +0.095
1N4763A
86.45
91
95.55
2.8
250
3.0K
0.25
5.0
69.2
50
+0.06 to +0.095
1N4764A
95.00
100
105.0
2.5
350
3.0K
0.25
5.0
76.0
45
+0.06 to +0.095
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
OUTSTANDING SUPPORT AND SUPERIOR SERVICES
PRODUCT SUPPORT
Central’s operations team provides the highest level of support to insure product is delivered on-time.
• Supply management (Customer portals)
• Custom bar coding for shipments
• Inventory bonding
• Custom product packing
• Consolidated shipping options
DESIGNER SUPPORT/SERVICES
Central’s applications engineering team is ready to discuss your design challenges. Just ask.
• Free quick ship samples (2nd day air)
• Special wafer diffusions
• Online technical data and parametric search
• PbSn plating options
• SPICE models
• Package details
• Custom electrical curves
• Application notes
• Environmental regulation compliance
• Application and design sample kits
• Customer specific screening
• Custom product and package development
• Up-screening capabilities
REQUESTING PRODUCT PLATING
1. If requesting Tin/Lead plated devices, add the suffix “ TIN/LEAD” to the part number when
ordering (example: 2N2222A TIN/LEAD).
2. If requesting Lead (Pb) Free plated devices, add the suffix “ PBFREE” to the part number
when ordering (example: 2N2222A PBFREE).
CONTACT US
Corporate Headquarters & Customer Support Team
Central Semiconductor Corp.
145 Adams Avenue
Hauppauge, NY 11788 USA
Main Tel: (631) 435-1110
Main Fax: (631) 435-1824
Support Team Fax: (631) 435-3388
www.centralsemi.com
Worldwide Field Representatives:
www.centralsemi.com/wwreps
Worldwide Distributors:
www.centralsemi.com/wwdistributors
For the latest version of Central Semiconductor’s LIMITATIONS AND DAMAGES DISCLAIMER,
which is part of Central’s Standard Terms and Conditions of sale, visit: www.centralsemi.com/terms
w w w. c e n t r a l s e m i . c o m
(001)
PDN01010 Rev:001
2/15/19
5/02/16
11/02/16
http://www.centralsemi.com
Summary:1 watt, high voltage (75V thru 100V), glass body Zener diodes manufactured in the DO-41 and MELF packages are discontinued
and now classified as End of Life (EOL). Rev:001 of PDN#010010, February 15, 2019, is being issued to add 1N4761A omitted from the
original PDN.
Although Central Semiconductor Corp. makes every effort to continue to produce devices that have been proclaimed EOL (End of Life) by
other 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 ongoing Product
Management Process. Any replacement products are noted below. The effective date for placing last purchase orders will be six (6) months
from the date of this notice and twelve (12) months from the notice date for final shipments, and minimum order quantities may apply.
The last purchase and shipment dates may be extended if inventory is available.
Central Part Number
CLL4762A BK
CLL4762A TR
CLL4762C BK
CLL4762C TR
CLL4763A BK
CLL4763A TR
CLL4764 TR
CLL4764A BK
CLL4764A TR
1N4761A BK
1N4761A TR
1N4762A BK
1N4762A TR
1N4763A BK
1N4763A TR
1N4764 BK
1N4764 TR
1N4764A BK
1N4764A TR
Replacement
N/A, Stock Only
N/A, Stock Only
N/A, Stock Only
N/A, Stock Only
N/A, Stock Only
N/A, Stock Only
N/A, Stock Only
N/A, Stock Only
N/A, Stock Only
N/A, Stock Only
N/A, Stock Only
N/A, Stock Only
N/A, Stock Only
N/A, Stock Only
N/A, Stock Only
N/A, Stock Only
N/A, Stock Only
N/A, Stock Only
N/A, Stock Only
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
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.
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