{"id":118546,"date":"2018-06-14T22:31:44","date_gmt":"2018-06-14T22:31:44","guid":{"rendered":"https:\/\/\/condensateurs-ceramique-multi-couches-haute-capacite\/"},"modified":"2018-06-14T22:31:44","modified_gmt":"2018-06-14T22:31:44","slug":"condensateurs-ceramique-multi-couches-haute-capacite","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/condensateurs-ceramique-multi-couches-haute-capacite\/","title":{"rendered":"Condensateurs c\u00e9ramique multi-couches haute-capacit\u00e9"},"content":{"rendered":"

Ces chips capacitifs BME MLC \u00e0 valeur de capacit\u00e9 \u00e9lev\u00e9e et conformes RoHS, font appel \u00e0des di\u00e9lectriques stables de classe II, X7R ou X5R.  La gamme disponible propose une large plage de capacit\u00e9s, allant de 6,8 nF jusqu’\u00e0 100 \u03bcF. Gr\u00e2ce \u00e0 leur ESR extr\u00eamement faible, ces composants sont parfaits pour remplacer des condensateurs tantale ou des condensateurs \u00e9lectrolytiques \u00e0 faible ESR, sans probl\u00e8me de polarit\u00e9. Ils peuvent \u00eatre utilis\u00e9s comme condensateurs de d\u00e9rivation d’alimentation, comme condensateurs de lissage, comme filtres d’entr\u00e9e\/sortie dans les convertisseurs continu-continu, ou servir dans les circuits num\u00e9riques et les modules LCD. Les tol\u00e9rances de capacit\u00e9 disponibles sont \u00b110% et \u00b120%.  Tous ces composants sont livrables avec criblage haute-fiabilit\u00e9. 
\nLes finitions disponibles sur les terminaisons \u00e0 barri\u00e8re de nickel sont : \u00e9tain, \u00e9tain-plomb ou \u00ab\u00a0Gold Flash\u00a0\u00bb (dorure flash), toutes compatibles avec le brasage par refusion.  L’option \u00ab\u00a0Gold Flash\u00a0\u00bb est particuli\u00e8rement int\u00e9ressante pour \u00e9viter les probl\u00e8mes de \u00ab\u00a0whiskers\u00a0\u00bb (\u00ab\u00a0moustaches\u00a0\u00bb) lors du brasage. Ce probl\u00e8me est devenu courant parce que les terminaisons en \u00e9tain pur, apparues pour r\u00e9pondre aux directives RoHS, favorise le d\u00e9veloppement de \u00ab\u00a0moustaches d\u2019\u00e9tain\u00a0\u00bb en surface, qui peuvent provoquer des courts-circuits ou des pannes.  Ce type de d\u00e9faillance repr\u00e9sente un danger av\u00e9r\u00e9, en particulier dans le cas d\u2019applications haute-fiabilit\u00e9, comme des dispositifs m\u00e9dicaux implantables ou des \u00e9quipements militaires.<\/p>\n

www.knowlescapacitors.com<\/a><\/p>\n

Inductances variables non-magn\u00e9tiques<\/a><\/h3>\n

Filtres EMI pour applications haute fiabilit\u00e9<\/a><\/h3>\n

Knowles lance des MLCC \u00ab\u00a0surtension et s\u00e9curit\u00e9\u00a0\u00bb sp\u00e9cifi\u00e9s 500 VAC<\/a><\/h3>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Les applications m\u00e9dicales et militaires n\u00e9cessitant des valeurs de capacit\u00e9 \u00e9lev\u00e9es sont concern\u00e9es par ces MLCC (Multi Layer Ceramic Capacitor) de la marque Novacap du groupe Knowles Precision Devices. Des circuits comparables peuvent \u00eatre con\u00e7us \u00e0 typiquement 1\/3 \u00e0 1\/5 des valeurs de capacit\u00e9, gr\u00e2ce \u00e0 la faible ESR (Equivalent Series Resistor) de ces composants. <\/p>\n","protected":false},"author":9,"featured_media":118547,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1141],"class_list":["post-118546","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"Condensateurs c\u00e9ramique multi-couches haute-capacit\u00e9 ...<\/title>\n<meta name=\"description\" content=\"Les applications m\u00e9dicales et militaires n\u00e9cessitant des valeurs de capacit\u00e9 \u00e9lev\u00e9es sont concern\u00e9es par ces MLCC (Multi Layer Ceramic Capacitor) de la...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/118546\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Condensateurs c\u00e9ramique multi-couches haute-capacit\u00e9\" \/>\n<meta property=\"og:description\" content=\"Les applications m\u00e9dicales et militaires n\u00e9cessitant des valeurs de capacit\u00e9 \u00e9lev\u00e9es sont concern\u00e9es par ces MLCC (Multi Layer Ceramic Capacitor) de la marque Novacap du groupe Knowles Precision Devices. Des circuits comparables peuvent \u00eatre con\u00e7us \u00e0 typiquement 1\/3 \u00e0 1\/5 des valeurs de capacit\u00e9, gr\u00e2ce \u00e0 la faible ESR (Equivalent Series Resistor) de ces composants.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/118546\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2018-06-14T22:31:44+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/sites\/default\/files\/images\/eci6405_knowles.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1421\" \/>\n\t<meta property=\"og:image:height\" content=\"1085\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Alain Dieul\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta 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