To our custo mers,
Old Company Name in Catalogs and Other Documents
On April 1st, 2010, NEC Electronics Corporation merged with Renesas Technology
Corporation, and Renesas Electronics Corpor ation took over all the business of both
companies. Therefore, althoug h the old company name remains in t his document, it is a valid
Renesas Electronics document. W e appreciate your understanding.
Renesas Electronics website: http://www.renesas.com
April 1st, 2010
Renesas Electronics Corporation
Issued by: Renesas Electr onics Corporat ion (http://www.renesas.com)
Send any inquiries to http://www.renesas.com/inquiry.
Notice
1. All information included in this document is current as of the date this document is issued. Such information, however, is
subject to change without any prior notice. Before purchasing or using any Renesas Electronics products listed herein, please
confirm the latest product information with a Renesas Electronics sales office. Also, please pay regular and careful attention to
additional and different information to be disclosed by Renesas Electronics such as that disclosed through our website.
2. Renesas Electronics does not assume an y liability for infringement of patents, copyrights, or other intellectual property rights
of third parties by or arising from the use of Renesas Electronics products or technical information described in this document.
No license, express, implied or otherwise, is granted hereby under any patents, copyrights or other intellectual property rights
of Renesas Electronics or others.
3. You should not alter, modify, copy, or otherwise misappropriate any Renesas Electronics product, whether in whole or in part.
4. Descriptions of circuits, software and other related information in this document are provided only to illustrate the operation of
semiconductor products and application examples. You are fully responsible for the incorporation of these circuits, software,
and information in the design of your equipment. Renesas Electronics assumes no responsibility for any losses incurred by
you or third parties arising from the use of these circuits, software, or information.
5. When exporting the products or technology described in this document, you should comply with the applicable export control
laws and regulations and follow the procedures required by such laws and regulations. You should not use Renesas
Electronics products or the technology described in this document for any purpose relating to military applications or use by
the military, including but not limited to the development of weapons of mass destruction. Renesas Electronics products and
technology may not be used for or incorporated into any products or systems whose manufacture, use, or sale is prohibited
under any applicable domestic or foreign laws or regulations.
6. Renesas Electronics has used reasonable care in preparing the information included in this document, but Renesas Electronics
does not warrant that such information is error free. Renesas Electronics assumes no liabil ity whatso ever for any damages
incurred by you resulting from errors in or omissions from the information included herein.
7. Renesas Electronics products are classified acco rding to the following three quality grades: “Standard”, “High Qu ality”, and
“Specific”. The recommended applications for each Renesas Electronics product depends on the product’s quality grade, as
indicated below. You must check the quality grade of each Renesas Electronics product before using it in a particular
application. You may not use any Renesas Electronics product for any application categorized as “Specific” without the prior
written consent of Renesas Electronics. Further, you may not use any Renesas Electronics product for any application for
which it is not intended without the prior written consent of Renesas Electronics. Renesas Electronics shall not be in any way
liable for any damages or losses incurred by you or third parties arising from the use of any Renesas Electronics product for an
application categorized as “Specific” or for which the product is not intended where you have failed to obtain the prior written
consent of Renesas Electronics. The quality grade of each Renesas Electronics product is “Standard” unless otherwise
expressly specified in a Renesas Electronics data sheets or data books, etc.
“Standard”: Computers; office equipment; communications equipment; test and measurement equipment; audio and visual
equipment; home electronic app liances; machine tool s; p ersonal electron i c equipment; and indust r ial robots.
“High Quality”: Transportation equipment (automobiles, trains, ships, etc.); traffic control systems; anti-disaster systems; anti-
crime systems; safety equipment; and medical equipment not specifically designed for life support.
“Specific”: Aircraft; aerospace equ ipment; submersible repeaters; nuclear reactor control systems; medical equi pment or
systems for life support (e.g. artificial life support devices or systems), surgical implantations, or healthcare
intervention (e.g. excision, etc.), and any other applications or purposes that pose a direct threat to human life.
8. You should use the Renesas Electronics products described in this document within the range specified by Renesas Electronics,
especially with respect to the maximum rating, operating supply voltage range, movement power voltage range, heat radiation
characteristics, installation and other product characteristics. Renesas Electronics shall have no liability for malfunctions or
damages arising out of the use of Renesas Electronics products beyond such specified ranges.
9. Although Renesas Electronics endeavors to improve the quality and reliability of its products, semiconductor products have
specific chara cterist ics such as the o ccurren ce of failure at a certai n rate and mal functi on s under certai n u se cond itions. Further,
Renesas Electronics pr oducts are not subject to radiation resistance design. Please be sure to implement safety measures to
guard them against the possibility of physical injury, and injury or damage caused by fire in the event of the failure of a
Renesas Electronics product, such as safety design for hardware and software including but not limited to redundancy, fire
control and malfunction prevention, appropriate treatment for aging degradation or any other appropriate measures. Because
the evaluation of microcomputer software alone is very difficult, please evaluate the safety of the final products or system
manufactured by you.
10. Please contact a Renesas Electronics sal es office for details as to environmental matters such as t he environmental
compatibility of each Renesas Electronics product. Please use Renesas Electronics products in compliance with all applicable
laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the EU RoHS
Directive. Renesas Electronics assumes no liability for damages or losses occurring as a result of your noncompliance with
applicable laws and regulations.
11. This document may not be reproduced or duplicated, in any form, in whole or in part, without prior written consent of Renesas
Electronics.
12. Please contact a Renesas Electronics sales office if you have any questions regarding the information contained in this
document or Renesas Electronics products, or if you have any other inquiries.
(Note 1) “Renesas Electronics” as used in this document means Ren esas E lectro nics Corpor ation and also inclu des its majority-
owned subsidiaries.
(Note 2) “Renesas Electronics product(s)” means any product developed or manufactured by or for Renesas Electronics.
REJ03G1221-0500 Rev.5.00 Nov 13, 200 7
Page 1 of 5
1N4728A through 1N4753A
Silicon Planar Zener Diodes for Stabilized Power Supply REJ03G1221-0500
Rev.5.00
Nov 13, 2007
Features
• Glass package DO-41 structure ensures high reliability.
• Wide spectrum from 3.3 V through 36 V of zener voltage provide flexible application.
Ordering Information
Part No. Cathode Band Mark Package Name Package Code
1N4728A through
1N4753A Black Part No. DO-41 GRZZ0002ZA-A
Pin Arrangement
1. Cathode
2. Anode
Cathode band
Part No.
12
1N4728A through 1N4753A
REJ03G1221-0500 Rev.5.00 Nov 13, 200 7
Page 2 of 5
Absolute Maximum Ratings
(Ta = 25°C)
Item Symbol Value Unit
Power dissipation Pd * 1.0 W
Junction temperature Tj 200 °C
Storage temperature Tstg –65 to +200 °C
Note: See Fig.3
Electrical Characteristics
(Ta = 25°C)
Zener Voltage Reverse Current Dynamic Resistance
Test
Condition IR (µA) Test
Condition ZZT (Ω)Test
Condition ZZK (Ω) Test
Condition IRSM (mA) *2
Part No. VZ (V) *1 IZ (mA) Max VR (V) Max IZT (mA) Max I ZK (mA) Max
1N4728A 3.3 ± 5 (%) 76 100 1.0 10 76 400 1.0 1380
1N4729A 3.6 ± 5 (%) 69 100 1.0 10 69 400 1.0 1260
1N4730A 3.9 ± 5 (%) 64 50 1.0 9 64 400 1.0 1190
1N4731A 4.3 ± 5 (%) 58 10 1.0 9 58 400 1.0 1070
1N4732A 4.7 ± 5 (%) 53 10 1.0 8 53 500 1.0 970
1N4733A 5.1 ± 5 (%) 49 10 1.0 7 49 550 1.0 890
1N4734A 5.6 ± 5 (%) 45 10 2.0 5 45 600 1.0 810
1N4735A 6.2 ± 5 (%) 41 10 3.0 2 41 700 1.0 730
1N4736A 6.8 ± 5 (%) 37 10 4.0 3.5 37 700 1.0 660
1N4737A 7.5 ± 5 (%) 34 10 5.0 4 34 700 0.5 605
1N4738A 8.2 ± 5 (%) 31 10 6.0 4.5 31 700 0.5 550
1N4739A 9.1 ± 5 (%) 28 10 7.0 5 28 700 0.5 500
1N4740A 10 ± 5 (%) 25 10 7.6 7 25 700 0.25 454
1N4741A 11 ± 5 (%) 23 5 8.4 8 23 700 0.25 414
1N4742A 12 ± 5 (%) 21 5 9.1 9 21 700 0.25 380
1N4743A 13 ± 5 (%) 19 5 9.9 10 19 700 0.25 344
1N4744A 15 ± 5 (%) 17 5 11.4 14 17 700 0.25 304
1N4745A 16 ± 5 (%) 15.5 5 12.2 16 15.5 750 0.25 285
1N4746A 18 ± 5 (%) 14.0 5 13.7 20 14.0 750 0.25 250
1N4747A 20 ± 5 (%) 12.5 5 15.2 22 12.5 750 0.25 225
1N4748A 22 ± 5 (%) 11.5 5 16.7 23 11.5 750 0.25 205
1N4749A 24 ± 5 (%) 10.5 5 18.2 25 10.5 750 0.25 190
1N4750A 27 ± 5 (%) 9.5 5 20.6 35 9.5 750 0.25 170
1N4751A 30 ± 5 (%) 8.5 5 22.8 40 8.5 1000 0.25 150
1N4752A 33 ± 5 (%) 7.5 5 25.1 45 7.5 1000 0.25 135
1N4753A 36 ± 5 (%) 7.0 5 27.4 50 7.0 1000 0.25 125
Notes: 1. Tested with DC
2. t = 1/120 s reverse direction 1pulse
1N4728A through 1N4753A
REJ03G1221-0500 Rev.5.00 Nov 13, 200 7
Page 3 of 5
Main Characteristic
100
80
60
40
20
0
Zener Current I
Z
(mA)
10 20 30 40
1N4730A
1N4732A
1N4734A
1N4736A
1N4738A
1N4739A
1N4740A
1N4746A
1N4747A
1N4748A
1N4749A
1N4728A
1N4750A
1N4751A
1N4752A
1N4753A
1N4741A
1N4742A
1N4743A
1N4744A
1N4745A
0 10203040
10
0
−10
−20
−30
−40
−50
0.10
0.08
0.06
0.04
0.02
0
20
30
40
50
%/°C
mV/°C
1.0
0.8
0.6
0.4
0.2
20015010050
00
10mm land
10 mm
or
20mm
Printed circuit board
100 180 1.6t mm
Material: Glass epoxy
××
3/8inch
20mm land
Zener Voltage Temperature Coefficient γ
Z
(%/°C)
Zener Voltage Temperature Coefficient γ
Z
(mV/°C)
Zener Voltage V
Z
(V)
Fig.2 Temperature Coefficient vs. Zener voltage
−0.06
−0.04
−0.02
Fig.2 Power Dissipation vs. Ambient Temperature
Ambient Temperature Ta (°C)
Power Dissipation Pd (mW)
Zener Voltage V
Z
(V)
Fig.1 Zener current vs. Zener voltage
−0.08
−0.1
0
1N4728A through 1N4753A
REJ03G1221-0500 Rev.5.00 Nov 13, 200 7
Page 4 of 5
1.0 10 102103
103
102
10
1.0
Transient Thermal Impedance Zth (°C/W)
Ta = 25°C
nonrepetitive
t
PRSM
1.0
1.0
10
Nonrepetitive Surge Reverses Power PRSM (W)
Time t (s)
Fig.4 Surge Reverse Power Ratings
Time t (s)
Fig.5 Transient Thermal Impedance
1N4730A
1N4734A
1N4740A
1N4730A
1N4734A
1N4740A
104
103
102
10–5 10–4 10–3 10–2 10–1
10–3 10–2 10–1
1N4728A through 1N4753A
REJ03G1221-0500 Rev.5.00 Nov 13, 200 7
Page 5 of 5
Package Dimensions
LEL
φb
φD
Min Nom Max
φb- 0.8
φD-3.0
E--5.2
L26.0 - -
-
-
Dimension in Millimeters
Reference
Symbol
0.38g
MASS[Typ.]
DO-41 / DO-41V
GRZZ0002ZA-A
RENESAS CodeJEITA Package Code Previous Code
Package Name
DO-41
Notes:
1. This document is provided for reference purposes only so that Renesas customers may select the appropriate Renesas products for their use. Renesas neither makes
warranties or representations with respect to the accuracy or completeness of the information contained in this document nor grants any license to any intellectual property
rights or any other rights of Renesas or any third party with respect to the information in this document.
2. Renesas shall have no liability for damages or infringement of any intellectual property or other rights arising out of the use of any information in this document, including,
but not limited to, product data, diagrams, charts, programs, algorithms, and application circuit examples.
3. You should not use the products or the technology described in this document for the purpose of military applications such as the development of weapons of mass
destruction or for the purpose of any other military use. When exporting the products or technology described herein, you should follow the applicable export control laws
and regulations, and procedures required by such laws and regulations.
4. All information included in this document such as product data, diagrams, charts, programs, algorithms, and application circuit examples, is current as of the date this
document is issued. Such information, however, is subject to change without any prior notice. Before purchasing or using any Renesas products listed in this document,
please confirm the latest product information with a Renesas sales office. Also, please pay regular and careful attention to additional and different information to be
disclosed by Renesas such as that disclosed through our website. (http://www.renesas.com )
5. Renesas has used reasonable care in compiling the information included in this document, but Renesas assumes no liability whatsoever for any damages incurred as a
result of errors or omissions in the information included in this document.
6. When using or otherwise relying on the information in this document, you should evaluate the information in light of the total system before deciding about the applicability
of such information to the intended application. Renesas makes no representations, warranties or guaranties regarding the suitability of its products for any particular
application and specifically disclaims any liability arising out of the application and use of the information in this document or Renesas products.
7. With the exception of products specified by Renesas as suitable for automobile applications, Renesas products are not designed, manufactured or tested for applications
or otherwise in systems the failure or malfunction of which may cause a direct threat to human life or create a risk of human injury or which require especially high quality
and reliability such as safety systems, or equipment or systems for transportation and traffic, healthcare, combustion control, aerospace and aeronautics, nuclear power, or
undersea communication transmission. If you are considering the use of our products for such purposes, please contact a Renesas sales office beforehand. Renesas shall
have no liability for damages arising out of the uses set forth above.
8. Notwithstanding the preceding paragraph, you should not use Renesas products for the purposes listed below:
(1) artificial life support devices or systems
(2) surgical implantations
(3) healthcare intervention (e.g., excision, administration of medication, etc.)
(4) any other purposes that pose a direct threat to human life
Renesas shall have no liability for damages arising out of the uses set forth in the above and purchasers who elect to use Renesas products in any of the foregoing
applications shall indemnify and hold harmless Renesas Technology Corp., its affiliated companies and their officers, directors, and employees against any and all
damages arising out of such applications.
9. You should use the products described herein within the range specified by Renesas, especially with respect to the maximum rating, operating supply voltage range,
movement power voltage range, heat radiation characteristics, installation and other product characteristics. Renesas shall have no liability for malfunctions or damages
arising out of the use of Renesas products beyond such specified ranges.
10. Although Renesas endeavors to improve the quality and reliability of its products, IC products have specific characteristics such as the occurrence of failure at a certain
rate and malfunctions under certain use conditions. Please be sure to implement safety measures to guard against the possibility of physical injury, and injury or damage
caused by fire in the event of the failure of a Renesas product, such as safety design for hardware and software including but not limited to redundancy, fire control and
malfunction prevention, appropriate treatment for aging degradation or any other applicable measures. Among others, since the evaluation of microcomputer software
alone is very difficult, please evaluate the safety of the final products or system manufactured by you.
11. In case Renesas products listed in this document are detached from the products to which the Renesas products are attached or affixed, the risk of accident such as
swallowing by infants and small children is very high. You should implement safety measures so that Renesas products may not be easily detached from your products.
Renesas shall have no liability for damages arising out of such detachment.
12. This document may not be reproduced or duplicated, in any form, in whole or in part, without prior written approval from Renesas.
13. Please contact a Renesas sales office if you have any questions regarding the information contained in this document, Renesas semiconductor products, or if you have
any other inquiries.
Sales Strategic Planning Div. Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan
http://www.renesas.com
Refer to "http://www.renesas.com/en/network" for the latest and detailed information.
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Tel: <1> (408) 382-7500, Fax: <1> (408) 382-7501
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Tel: <852> 2265-6688, Fax: <852> 2730-6071
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Tel: <886> (2) 2715-2888, Fax: <886> (2) 2713-2999
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Tel: <65> 6213-0200, Fax: <65> 6278-8001
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Kukje Center Bldg. 18th Fl., 191, 2-ka, Hangang-ro, Yongsan-ku, Seoul 140-702, Korea
Tel: <82> (2) 796-3115, Fax: <82> (2) 796-2145
Renesas Technology Malaysia Sdn. Bhd
Unit 906, Block B, Menara Amcorp, Amcorp Trade Centre, No.18, Jalan Persiaran Barat, 46050 Petaling Jaya, Selangor Darul Ehsan, Malaysia
Tel: <603> 7955-9390, Fax: <603> 7955-9510
RENESAS SALES OFFICES
© 2007. Renesas Technology Corp., All rights reserved. Printed i n Japan.
Colophon .7.0
