{"id":245827,"date":"2024-10-19T16:10:16","date_gmt":"2024-10-19T16:10:16","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-c62-42-4-2020\/"},"modified":"2024-10-25T11:11:09","modified_gmt":"2024-10-25T11:11:09","slug":"ieee-c62-42-4-2020","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-c62-42-4-2020\/","title":{"rendered":"IEEE C62.42.4 2020"},"content":{"rendered":"

New IEEE Standard – Active. Surge protective components (SPCs) used in power and telecom surge protective devices (SPDs) and equipment ports are covered in the IEEE C62.42 guide series. Positive temperature coefficient (PTC) thermistor components are covered in this part. These SPCs are operated by self-heating and is automatically reset after the end of the overcurrent condition without the need for manual intervention. The two types of body material, polymer and ceramic, are covered in this guide. These components are referred to as follows: a) polymer positive temperature coefficient (PPTC) thermistors and b) ceramic positive temperature coefficient (CPTC) thermistors. Overview, construction, operation, production, ratings, characteristics, and application examples are topics covered in this guide.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nIEEE Std C62.42.4\u2122-2020 Front cover <\/td>\n<\/tr>\n
2<\/td>\nTitle page <\/td>\n<\/tr>\n
4<\/td>\nImportant Notices and Disclaimers Concerning IEEE Standards Documents <\/td>\n<\/tr>\n
7<\/td>\nParticipants <\/td>\n<\/tr>\n
8<\/td>\nIntroduction <\/td>\n<\/tr>\n
9<\/td>\nContents <\/td>\n<\/tr>\n
10<\/td>\n1.\u2002Overview
1.1\u2002Scope <\/td>\n<\/tr>\n
11<\/td>\n1.2\u2002Word usage
2.\u2002Normative references
3.\u2002Definitions, acronyms, abbreviations, and graphical symbols
3.1\u2002Definitions <\/td>\n<\/tr>\n
13<\/td>\n3.2\u2002Acronyms and abbreviations <\/td>\n<\/tr>\n
14<\/td>\n3.3\u2002Graphical symbol
4.\u2002Overview of PTC thermistors
4.1\u2002PTC thermistor resistance <\/td>\n<\/tr>\n
15<\/td>\n4.2\u2002Polymeric and ceramic material resistance change
4.3\u2002PTC thermistor overcurrent operation <\/td>\n<\/tr>\n
16<\/td>\n5.\u2002Polymeric PTC thermistor
5.1\u2002Production <\/td>\n<\/tr>\n
17<\/td>\n5.2\u2002Properties
5.3\u2002Operation <\/td>\n<\/tr>\n
18<\/td>\n5.4\u2002Characteristics <\/td>\n<\/tr>\n
19<\/td>\n5.5\u2002Ratings
6.\u2002Ceramic PTC thermistors
6.1\u2002Production
6.2\u2002Properties <\/td>\n<\/tr>\n
21<\/td>\n6.3\u2002Operation
6.4\u2002Characteristics <\/td>\n<\/tr>\n
22<\/td>\n6.5\u2002Ratings
7.\u2002Characteristics
7.1\u2002General
7.2\u2002Resistance, R <\/td>\n<\/tr>\n
23<\/td>\n7.3\u2002Hold current, Ih and trip current, It
7.4\u2002Time-to-trip, ttrip <\/td>\n<\/tr>\n
25<\/td>\n7.5\u2002Resistance 1\u00a0h after tripping, R1 for polymer PTC thermistors
7.6\u2002impulse resistance, Rimp for ceramic PTC thermistors <\/td>\n<\/tr>\n
26<\/td>\n8.\u2002Ratings
8.1\u2002General
8.2\u2002Impulse voltage withstand
8.3\u2002AC power fault <\/td>\n<\/tr>\n
27<\/td>\n8.4\u2002Impulse endurance test
8.5\u2002AC endurance test (PTC thermistor)
9.\u2002Applications
9.1\u2002General
9.2\u2002Telecom plain old telephone systems (POTS) protection <\/td>\n<\/tr>\n
28<\/td>\n9.3\u2002Power supply overcurrent protection
9.4\u2002Battery packs
9.5\u2002Loudspeaker <\/td>\n<\/tr>\n
29<\/td>\n9.6\u2002Motors
9.7\u2002Heaters <\/td>\n<\/tr>\n
30<\/td>\nAnnex\u00a0A (informative) Bibliography <\/td>\n<\/tr>\n
31<\/td>\nBack cover <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE Guide for the Application of Surge-Protective Components in Surge Protective Devices and Equipment Ports–Part 4: Thermally Activated Current Limiters<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n2020<\/td>\n31<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":245832,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-245827","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ieee","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/245827","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/245832"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=245827"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=245827"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=245827"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}