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

 

Project

Reference EN 60539-2:2004
Title Directly heated negative temperature coefficient thermistors - Part 2: Sectional specification - Surface mount negative temperature coefficient thermistors
Project Number 15512
Abstract/Scope is applicable to surface mount directly heated negative temperature coefficient thermistors, typically made from transition metal oxide materials with semiconducting properties. These thermistors have metallized connecting pads or soldering strips and are intended to be mounted directly on to substrates for hybrid circuits or on to printed boards.
Status
Published

Status

Current Stage code 6060
Current Stage code date 2004-02-10
Current Stage code deadline 2004-11-01
Deadline date for vote  

Legal

Directive(s)  
Mandate(s)  
Order Voucher  

Details

IEC Technical Body IEC/TC 40
Reference Document IEC 60539-2:2003 (EQV)
ICS 31.040.30 - Thermistors
Keywords Thermistor; Temperature coefficient; Directly heated; Negative coefficient
Note Due to the modification of the CLC/TC 40XB scope (D133/047), project transferred to CLC/SR 40
A-Deviation(s)  
Special National Condition(s)  

Environment

Clause
Categories - Aspects
Product Life Cycle
Information

History

Stage
Date
Deadline Date
Documents
6060 2004-02-10 2004-11-01 export to doc file  EN
5099 2004-02-01 2004-06-01  
5061 2003-11-24 2004-02-01  
5020 2003-08-01 2003-10-03  
4099 2003-05-16 2003-08-08  
4020 2002-10-11 2003-03-14  
3099 2002-10-08 2002-10-11  

Implementation Dates

date of Ratification (DOR) (1) 2004-02-01
date of Availability (DAV) (2) 2004-02-10
date of Announcement (DOA) (3) 2004-05-01
date of Publication (DOP) (4) 2004-11-01
date of Withdrawal (DOW) (5) 2007-02-01

Relations

Supersedes  
Superseded by  
Normative reference (6) EN 60068-2-2:1993
A1:1993
A2:1994
EN 60068-2-14:1999
:
:
EN 60068-2-30:1999
:
:
EN 60068-2-58:1999
EN 60068-2-78:2001
IEC 60410:1973
EN 60539-1:2002

(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.