EN IEC 61643-341:2020

Components for low-voltage surge protection - Part 341: Performance requirements and test circuits for thyristor surge suppressors (TSS)

IEC 61643-341:2020 specifies standard test circuits and methods for thyristor surge suppressor (TSS) components. These surge protective components, SPCs, are specially formulated thyristors designed to limit overvoltages and divert surge currents by clamping and switching actions. These SPCs are used in the construction of surge protective devices (SPDs) and equipment used in Information & Communications Technologies (ICT) networks with voltages up to AC 1 000 V and DC 1 500 V. This document is applicable to gated or non-gated TSS components with third quadrant (-v and –i) characteristics of blocking, conducting or switching. This document contains information on - terminology; - letter symbols; - essential ratings and characteristics; - rating verification and characteristic measurement; This document does not apply to the conventional three-terminal thyristors as covered by IEC 60747-6. This second edition of IEC 61643-341 cancels and replaces the first edition published in 2001. This edition constitutes a technical revision.This edition includes the following significant technical changes with respect to the previous edition: Addition of performance values.

Bauelemente für Überspannungsschutzgeräte für Niederspannung - Teil 341: Leistungsanforderungen sowie Prüfschaltungen für Suppressordioden (TSS)

Composants pour parafoudres basse tension - Partie 341: Exigences de performance et circuits d'essai pour parafoudres à thyristor (TSS)

IEC 61643-341:2020 spécifie les circuits d'essai et les méthodes normalisés pour les composants de parafoudre à thyristor (TSS, Thyristor Surge Suppressor). Ces composants de protection contre les surtensions (SPC, Surge Protective Components) sont des thyristors spécialement conçus pour limiter les surtensions et écouler les courants de surcharge par des actions d'écrêtage et de commutation. Ces SPC sont utilisés dans la construction de parafoudres (SPD, Surge Protective Devices) et d'équipements utilisés dans les réseaux de technologies de l'information et de la communication (TIC) dont les tensions atteignent 1 000 V CA et 1 500 V CC. Le présent document s'applique aux composants TSS à gâchette ou non, équipés d'un troisième quadrant (-v et –i) ayant des caractéristiques de blocage, de conduction ou de commutation. Le présent document contient des indications sur: - la terminologie; - les symboles littéraux; - les valeurs assignées et les caractéristiques essentielles; - la vérification des valeurs assignées et la mesure des caractéristiques. Le présent document ne s'applique pas aux thyristors conventionnels à trois bornes couverts dans l'IEC 60747-6. Cette deuxième édition de l'IEC 61643-341 annule et remplace la première édition parue en 2001. Cette édition constitue une révision technique. Cette édition inclut la modification technique majeure suivante par rapport à l'édition précédente: Ajout de valeurs de performances.

Sestavni deli za nizkonapetostne naprave za zaščito pred prenapetostnimi udari - 341. del: Specifikacije za tiristorske prenapetostne omejevalnike (TSS)

General Information

• Status: Published
• Publication Date: 02-Jul-2020
• ICS: 31.080.10 - Diodes
• Technical Committee: CLC/SR 37B - Specific components for surge arresters and surge protective devices
• Drafting Committee: IEC/SC 37B - IEC_SC_37B
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 03-Jul-2020
• Completion Date: 03-Jul-2020
• Directive: 2014/30/EU - Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic compatibility (recast)
• Ref Project: SIST EN IEC 61643-341:2020 - Components for low-voltage surge protection -Part 341: Performance requirements and test circuits for thyristor surge suppressors (TSS)

Relations

• Replaces: EN 61643-341:2001 - Components for low-voltage surge protective devices - Part 341: Specification for thyristor surge suppressors (TSS)
• Effective Date: 07-Jul-2020

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2020
Nadomešča:
SIST EN 61643-341:2005
Sestavni deli za nizkonapetostne naprave za zaščito pred prenapetostnimi udari -
341. del: Specifikacije za tiristorske prenapetostne omejevalnike (TSS)
Components for low-voltage surge protection -Part 341: Performance requirements and
test circuits for thyristor surge suppressors (TSS)
Ta slovenski standard je istoveten z: EN IEC 61643-341:2020
ICS:
29.120.50 Varovalke in druga Fuses and other overcurrent
nadtokovna zaščita protection devices
31.080.10 Diode Diodes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61643-341

NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2020
ICS 31.080.10 Supersedes EN 61643-341:2001 and all of its
amendments and corrigenda (if any)
English Version
Components for low-voltage surge protection - Part 341:
Performance requirements and test circuits for thyristor surge
suppressors (TSS)
(IEC 61643-341:2020)
Composants pour parafoudres basse tension - Partie 341: Bauelemente für Überspannungsschutzgeräte für
Exigences de performance et circuits d'essai pour Niederspannung - Teil 341: Leistungsanforderungen sowie
parafoudres à thyristor (TSS) Prüfschaltungen für Suppressordioden (TSS)
(IEC 61643-341:2020) (IEC 61643-341:2020)
This European Standard was approved by CENELEC on 2020-06-17. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61643-341:2020 E

European foreword
The text of document 37B/218/FDIS, future edition 2 of IEC 61643-341, prepared by SC 37B
"Components for low-voltage surge protection" of IEC/TC 37 "Surge arresters" was submitted to the
IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 61643-341:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-03-17
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-06-17
document have to be withdrawn
This document supersedes EN 61643-341:2001 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 61643-341:2020 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60060-1:2010 NOTE Harmonized as EN 60060-1:2010 (not modified)
IEC 60068-2-20:2008 NOTE Harmonized as EN 60068-2-20:2008 (not modified)
IEC 60068-2-21:2006 NOTE Harmonized as EN 60068-2-21:2006 (not modified)
IEC 60099-4:2014 NOTE Harmonized as EN 60099-4:2014 (not modified)
IEC 60721-3-3:2019 NOTE Harmonized as EN IEC 60721-3-3:2019 (not modified)
IEC 60721-3-9:1993 NOTE Harmonized as EN 60721-3-9:1993 (not modified)
IEC 60749-1:2002 NOTE Harmonized as EN 60749-1:2003 (not modified)
IEC 60950-1:2005 NOTE Harmonized as EN 60950-1:2006 (modified)
IEC 61000-4-5:2014 NOTE Harmonized as EN 61000-4-5:2014 (not modified)
IEC 61643-11:2011 NOTE Harmonized as EN 61643-11:2012 (modified)
IEC 62475:2010 NOTE Harmonized as EN 62475:2010 (not modified)

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60050-521 - International Electrotechnical Vocabulary - - -
Part 521: Semiconductor devices and
integrated circuits
IEC 60068-2-20 2008 Environmental testing - Part 2-20: Tests - EN 60068-2-20 2008
Test T: Test methods for solderability and
resistance to soldering heat of devices with
leads
IEC 61643-341 ®
Edition 2.0 2020-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Components for low-voltage surge protection –

Part 341: Performance requirements and test circuits for thyristor surge

suppressors (TSS)
Composants pour parafoudres basse tension –

Partie 341: Exigences de performance et circuits d'essai pour parafoudres

à thyristor (TSS)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.080.10 ISBN 978-2-8322-8304-2

– 2 – IEC 61643-341:2020 © IEC 2020
CONTENTS
FOREWORD . 6
1 Scope . 8
2 Normative references . 8
3 Terms, definitions, abbreviated terms and symbols . 8
3.1 Parametric terms, letter symbols and definitions . 9
3.2 General terms . 9
3.3 Main terminal ratings . 9
3.4 Main terminal characteristics . 11
3.5 Additional and derived parameters . 12
3.6 Temperature related parameters . 12
3.7 Gate terminal parameters . 13
3.8 Abbreviated terms . 15
3.9 Circuit symbols . 15
4 TSS types . 16
5 Service conditions . 18
5.1 Normal service conditions . 18
.
5.2 Storage temperature range, T min to T max. . 18
stg stg
6 Mechanical requirements and identification . 18
6.1 Robustness of terminations . 18
6.2 Solderability . 18
6.3 Marking . 18
6.4 Documentation . 18
7 Standard test methods . 19
7.1 Failure rates . 19
7.2 Test conditions . 19
7.2.1 General. 19
7.2.2 Standard atmospheric conditions . 19
7.2.3 Measurement errors . 20
7.2.4 Measurement accuracy . 20
7.2.5 Designated impulse shape and values . 20
7.2.6 Multiple TSS . 20
7.2.7 Gated TSS testing . 20
7.3 Rating test procedures . 20
7.3.1 General. 20
7.3.2 Repetitive peak off-state voltage, V . 21
DRM
7.3.3 Repetitive peak on-state current, I . 21
TRM
7.3.4 Non-repetitive peak on-state current, I . 22
TSM
7.3.5 Non-repetitive peak pulse current, I . 23
PP
7.3.6 Repetitive peak reverse voltage, V . 24
RRM
7.3.7 Non-repetitive surge forward current, I . 24
FSM
7.3.8 Repetitive peak forward current, I . 24
FRM
7.3.9 Critical rate of rise of on-state current, di/dt . 25
7.4 Characteristic test procedures . 26
7.4.1 General. 26
7.4.2 Off-state current, I . 26
D
7.4.3 Repetitive peak off-state current, I . 27
DRM
IEC 61643-341:2020 © IEC 2020 – 3 –
7.4.4 Repetitive peak reverse current, I . 27
RRM
7.4.5 Breakover voltage, V and current, I . 27
(BO) (BO)
7.4.6 On-state voltage, V . 29
T
7.4.7 Holding current, I . 33
H
7.4.8 Off-state capacitance, C . 34
o
7.4.9 Forward voltage, V . 37
F
7.4.10 Peak forward recovery voltage, V . 37
FRM
7.4.11 Critical rate of off-state voltage rise, dv/dt . 38
7.4.12 Variation of holding current with temperature . 38
7.4.13 Gate-to-adjacent terminal peak off-state voltage and peak off-state
gate current, V , I . 38
GDM GDM
7.4.14 Gate reverse current, adjacent terminal open, I , I . 39
GAO GKO
7.4.15 Gate reverse current, main terminals short-circuited, I , I . 40
GAS GKS
Annex A (informative) Common impulse waveshapes . 41
A.1 General . 41
A.2 Types of impulse generator . 41
A.3 Impulse generator parameters .
...