International Standards and Conformity Assessment for all electrical, electronic and related technologies



Reference EN 61709:1998
Title Electronic components - Reliability - Reference conditions for failure rates and stress models for conversion
Project Number 8234
Abstract/Scope Gives guidance on the use of failure rate data for the reliability prediction of components in electronic equipment. Reference conditions for failure rate data are specified, so that data from different sources can be compared. The reference conditions adopted are typical of the majority of applications of components in equipment (e.g. telecommunication use, data processing). In this standard it is assumed that the failure rate used under reference conditions is specific to the component i.e. it includes the effect of complexity, technology of the casing, dependence on manufacturers and the manufacturing process, etc.


Current Stage code 6060
Current Stage code date 1998-04-06
Current Stage code deadline 1999-03-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 56
Reference Document IEC 61709:1996 (EQV)
ICS 31.020 - Electronic components in general
Keywords Electronic component; Reliability; Failure rate; Stress model
Note D97/082: CECC/SC 56X disbanded * Superseded by EN 61709:1998
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 1998-04-06 1999-03-01 export to doc file  EN
5099 1998-04-01 1998-05-01  
5091 1997-09-30 1997-12-09  
5062 1997-09-10 1997-10-01  
5020 1997-02-06 1997-09-01  
1090 1997-01-27 1997-07-27  
1020 1996-11-25 1996-12-31  
1000 1996-11-25    

Implementation Dates

date of Ratification (DOR) (1) 1998-04-01
date of Availability (DAV) (2) 1998-04-06
date of Announcement (DOA) (3) 1998-09-01
date of Publication (DOP) (4) 1999-03-01
date of Withdrawal (DOW) (5) 1999-03-01


Superseded by EN 61709:2011
Normative reference (6) IEC 60050-191:1990

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.