Varistors for use in electronic equipment - Part 2: Sectional specification for surge suppression varistors
These varistors are designed to protect electronic and other sensitive equipment from high transient surges. Varistors under the scope of this sectional specification are not intended to give primary protection against lightning surges.
These varistors have metallic connections and are intended to be mounted as through hole component or directly on to printed boards.
The object of this document is to prescribe preferred ratings and characteristics and to select from IEC 61051-1 the appropriate quality assessment procedures, tests and measuring methods, and to give general performance requirements for this type of varistors.
This edition includes the following significant technical changes with respect to the previous edition:
- revision for the structure in accordance with ISO/IEC Directives, Part 2) to the extent practicable, and for harmonizing with IEC 61051-1:2018;
- Annex X has been added for comparison with the previous edition;
- two lists of preferred voltage ratings for disk type and SMD type varistors have been added;
- permissible numbers of non-conforming items have been set to zero (zero fault) in the test schedule in 8.4.3.
|Publication type||International Standard|
|TC/SC||TC 40 - Capacitors and resistors for electronic equipmentrss|
|ICS||31.040.20 - Potentiometers, variable resistors|
|File size||1863 KB|
The following test report forms are related:
Share your publications
Learn how to share your publications with your colleagues, using networking options.
Our prices are in Swiss francs (CHF). We accept all major credit cards (American Express, Mastercard and Visa, JCB and CUP), PayPal and bank transfers as form of payment.
Keep in touch
Keep up to date with new publication releases and announcements with our free IEC Just Published email newsletter.
Contact customer services
Please send your enquiry by email or call us on +41 22 919 02 11 between 09:00 – 17:00 CET Monday to Friday.