ECA-IS-749-1998.pdf
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1、STD-EIA IS-749-ENGL 3998 3234b00 0589392 375 EIA INTERIM STANDARD Q, t )c I s I I Rectified Mains Application Expected EIAAS-749 JANUARY 1998 ELECTRONIC INDUSTRIES ASSOCIATION ENGINEERING DEPARTMENT Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license wit
2、h ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 20:10:43 MDTNo reproduction or networking permitted without license from IHS -,-,- - STD-EIA IS-749-ENGL 2998 3234b00 0589293 202 m NOTICE E U E n - Striadards and publications are designed to seme the public inkre
3、st through eliminating miSundCrstandings * between mrmiifivhinrr and piirchascrs, facilitating inmgeability a l K l improvcmcnt of products, and assisting the purchasa in selecting and obtaining with minimum &lay the proper product for his particular d. Existcact of such Staodards and Publications s
4、ha not in any respect preclude any member o r I m l m a k k o f E I A f m l n or selling products not conforming to suai Stadads and Publications, nor shall tkcxktaofsuch Standards rindPubiicahs&tIicirvol use by thosc other than EiA members, whetherthe standardis tobcusedeitbadamsticallyorin. Stemda
5、rds and Publicabs a adoptedby EIA m accdanwithtbc American N a t i d Standards institute (ANSI) patent policy. By such acticm, EiA dots not assume any liability to any patent owi1, nor does it assurnt any obligaionwtiattvertoparticsadoptingthe Standardorhblicatioa EIAINTEWSTANDARDS EiAIntaimStemdard
6、sinfondctmcdtobeoftechnicalvaluctothc indusy7 and are published at the request of the Originating CommiaCe without necessarily following the rigorous public review and resolution of cammcnts which is a procedurai part of the development of an EiA S t a n d a r d EIA Interim Standards &odd be reviewe
7、d onan m u a l basis by the formulating Committee and adecision made on whether to proceed to belop an EM Standard on t h i s subject. EiA Interim Standards must be cancelled by the commi#et and removed from the EiA Standards Catalog b e f m the end of their third year of existence. Publidcm of this
8、 ELA interim Standard for triai use and c(nnmcLlf has been approved by the Electronic industres hstnbutianofthis EIA Interim Standard foicomment shallnotoontinUe beyond 36 months fiomthc date of publication. It is expected that foliowing this 36 month period, this EIA Interim Standard, revised as DC
9、CCSSIIY, will be submitted t o he Amerim N a t i d Standards institute for approval as an AmericanNational Standard SuggcstionS for revision should be directed to: Bemie Aronson, Engineuing Department, Electronic ladustries Association, 2500 W i l s o n Bouievard, Arlington, VA 2220 1. . . ran Proje
10、ct Niimber 3873, formulated under the cognizance of he EM P-2.4 Aluminum Electrolytic Capacitors Subcommi#cc.) Publisbed by OELECTRONIC INDUSTRIES ASSOCIATION 1998 2500 Wilson Boukvard EngineaingDeP- Adingm, VA 2220 1 PRICE: P l e a s e refer to tbe current Catdog of EM, JEDEC, and TIA STANDARDS and
11、 ENGINEERING PUBLICATIONS or ca Globai Engineering Documents, USA and Canada (1-800-854-7179) Internationai (305397-1956) Ali rights resewed Printcd in U.S.A. Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001,
12、 User=Wing, Bernie Not for Resale, 03/30/2007 20:10:43 MDTNo reproduction or networking permitted without license from IHS -,-,- Preface Clause 1 2 3 4 5 6 7 8 9 Table 1 2 Figure 1 2 3 CONTENTS Scope Test circuit Test fixtures Preconditioning Initial measurement Test environment Recovery per test in
13、terval Measurement per test interval Test completion Definition of wear-out failure Test conditions Suggested test circuit Screw terminai style capacitor test fixture Copper bus structure for screw terminal style capacitors Page 1 1 2 3 3 3 3 3 3 1 3 1 2 2 i Copyright Electronic Components, Assembli
14、es & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 20:10:43 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-EIA IS-749-ENGL 1998 ICI 3234b00 0589335 O 8 4 I Preface This inter
15、im standard was developed under the cognizance of the P-2.4, Subcommittee on Aluminum Electrolytic Capacitors. . lll Previous page is blank Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie
16、Not for Resale, 03/30/2007 20:10:43 MDTNo reproduction or networking permitted without license from IHS -,-,- EIA/IS-749 Page 1 Equivalent series resistance Capacitance DC leakage current 1 Scope Greater than 200% initial requirement for equivalent series resistance Less than 80% initiai measured ca
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- ECA IS 749 1998
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