Is Now Part of To learn more about ON Semiconductor, please visit our website at www.onsemi.com Please note: As part of the Fairchild Semiconductor integration, some of the Fairchild orderable part numbers will need to change in order to meet ON Semiconductors system requirements. Since the ON Semiconductor product management systems do not have the ability to manage part nomenclature that utilizes an underscore ( ), the underscore ( ) in the Fairchild part numbers will be changed to a dash (-). This document may contain device numbers with an underscore ( ). Please check the ON Semiconductor website to verify the updated device numbers. The most current and up-to-date ordering information can be found at www.onsemi.com. Please email any questions regarding the system integration to Fairchild questions onsemi.com. ON Semiconductor and the ON Semiconductor logo are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductors product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. Typical parameters which may be provided in ON Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including Typicals must be validated for each customer application by customers technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.1N4728A - 1N4758A Zener Diodes April 2009 1N4728A - 1N4758A Zener Diodes Tolerance = 5% DO-41 Glass case COLOR BAND DENOTES CATHODE Absolute Maximum Ratings * T = 25C unless otherwise noted a Symbol Parameter Value Units P Power Dissipation 1.0 W D TL 50C, Lead Length = 3/8 Derate above 50 C 6.67 mW/ C T , T Operating and Storage Temperature Range -65 to +200 C J STG * These ratings are limiting values above which the serviceability of the diode may be impaired. Electrical Characteristics T = 25C unless otherwise noted a Leakage Non-Repetitive V (V) I (Note 1) Max. Zener Impedance Z Z Current Test Current Peak Reverse Device I (mA) Current Z Z I Z I I V Z Z ZK ZK R R Min. Typ. Max. () I ( ) (mA) (A) (V) I (mA) (Note 2) ZK ZSM 1N4728A 3.135 3.3 3.465 76 10 400 1 100 1 1380 1N4729A 3.42 3.6 3.78 69 10 400 1 100 1 1260 1N4730A 3.705 3.9 4.095 64 9 400 1 50 1 1190 1N4731A 4.085 4.3 4.515 58 9 400 1 10 1 1070 1N4732A 4.465 4.7 4.935 53 8 500 1 10 1 970 1N4733A 4.845 5.1 5.355 49 7 550 1 10 1 890 1N4734A 5.32 5.6 5.88 45 5 600 1 10 2 810 1N4735A 5.89 6.2 6.51 41 2 700 1 10 3 730 1N4736A 6.46 6.8 7.14 37 3.5 700 1 10 4 660 1N4737A 7.125 7.5 7.875 34 4 700 0.5 10 5 605 1N4738A 7.79 8.2 8.61 31 4.5 700 0.5 10 6 550 1N4739A 8.645 9.1 9.555 28 5 700 0.5 10 7 500 1N4740A 9.5 10 10.5 25 7 700 0.25 10 7.6 454 1N4741A 10.45 11 11.55 23 8 700 0.25 5 8.4 414 1N4742A 11.4 12 12.6 21 9 700 0.25 5 9.1 380 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com 1N4728A - 1N4758A Rev. H3 1