{"id":388,"date":"2009-05-28T12:27:21","date_gmt":"2009-05-28T11:27:21","guid":{"rendered":"http:\/\/www.ibexuk.com\/resource\/?p=388"},"modified":"2022-02-18T15:05:18","modified_gmt":"2022-02-18T15:05:18","slug":"tantalum-capacitors","status":"publish","type":"post","link":"https:\/\/ibex.tech\/resources\/geek-area\/electronics\/capacitors\/tantalum-capacitors","title":{"rendered":"Tantalum Capacitors"},"content":{"rendered":"<p>Tantalum capacitors have a couple of important design advantages:-<\/p>\n<ul>\n<li>They can be excellent at removing noise (for instance placed across power rails) and improving the EMC performance of a circuit.<\/li>\n<li>They are physically small<\/li>\n<\/ul>\n<p>The main downside is that they are more expensive than say an equivalent electrolytic capacitor.<\/p>\n<p><strong><span style=\"text-decoration: underline;\">Voltage<\/span><\/strong><\/p>\n<p>It is important to derate tantalum capacitors voltage by 50% (e.g. if placing across a 0V and +5V supply rail select a 10V or higher rated tantalum capacitor).\u00a0 The reasons for this are complex, but it was discovered when first developing the capacitor that it needed to be used for a significant period of time to reveal any faults and their life was greatly extended by derating down.\u00a0\u00a0 This is one of those rules you should just follow as a designer to ensure the longevity of your manufactured hardware.<\/p>\n<p><span style=\"text-decoration: underline;\"><strong>Faults<\/strong><\/span><\/p>\n<p>Tantalum&#8217;s can cause really strange problems if they fail or are inserted the wrong way round.\u00a0 If you&#8217;ve got something very odd going on its often a good idea to check and even try removing tantalum capacitors to see if they are the cause.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tantalum capacitors have a couple of important design advantages:- They can be excellent at removing noise (for instance placed across power rails) and improving the EMC performance of a circuit. They are physically small The main downside is that they are more expensive than say an equivalent electrolytic capacitor. Voltage It is important to derate [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30],"tags":[],"class_list":["post-388","post","type-post","status-publish","format-standard","hentry","category-capacitors"],"_links":{"self":[{"href":"https:\/\/ibex.tech\/resources\/wp-json\/wp\/v2\/posts\/388","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ibex.tech\/resources\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ibex.tech\/resources\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ibex.tech\/resources\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ibex.tech\/resources\/wp-json\/wp\/v2\/comments?post=388"}],"version-history":[{"count":1,"href":"https:\/\/ibex.tech\/resources\/wp-json\/wp\/v2\/posts\/388\/revisions"}],"predecessor-version":[{"id":1611,"href":"https:\/\/ibex.tech\/resources\/wp-json\/wp\/v2\/posts\/388\/revisions\/1611"}],"wp:attachment":[{"href":"https:\/\/ibex.tech\/resources\/wp-json\/wp\/v2\/media?parent=388"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ibex.tech\/resources\/wp-json\/wp\/v2\/categories?post=388"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ibex.tech\/resources\/wp-json\/wp\/v2\/tags?post=388"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}