{"id":232,"count":0,"description":"In a circuit that contains a capacitor, filament, heating element, or inverter\/ballast for a fluorescent lamp, the inrush current can be 10 to 100 times higher than during normal operation. This can be prevented by using an NTC thermistor connected in series. The thermistor\u2019s higher cold resistance (zero-power resistance) thereby limits the inrush current when the circuit is turned on. After power-on, the flowing current causes the thermistor to heat up, whereupon its resistance drops to a very low ohm value, thereby allowing a normal operating current.   ","link":"https:\/\/www.alpha-therm.com\/en\/produkte\/overload-protection\/ntc-inrush-current-limiter\/","name":"NTC inrush current limiter","slug":"ntc-inrush-current-limiter","taxonomy":"product_cat","parent":279,"meta":[],"menu_order":22,"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>NTC inrush current limiter - Alpha Therm<\/title>\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.alpha-therm.com\/en\/produkte\/overload-protection\/ntc-inrush-current-limiter\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"NTC inrush current limiter - Alpha Therm\" \/>\n<meta property=\"og:description\" content=\"In a circuit that contains a capacitor, filament, heating element, or inverter\/ballast for a fluorescent lamp, the inrush current can be 10 to 100 times higher than during normal operation. This can be prevented by using an NTC thermistor connected in series. The thermistor\u2019s higher cold resistance (zero-power resistance) thereby limits the inrush current when the circuit is turned on. After power-on, the flowing current causes the thermistor to heat up, whereupon its resistance drops to a very low ohm value, thereby allowing a normal operating current.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.alpha-therm.com\/en\/produkte\/overload-protection\/ntc-inrush-current-limiter\/\" \/>\n<meta property=\"og:site_name\" content=\"Alpha Therm\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"CollectionPage\",\"@id\":\"https:\\\/\\\/www.alpha-therm.com\\\/en\\\/produkte\\\/overload-protection\\\/ntc-inrush-current-limiter\\\/\",\"url\":\"https:\\\/\\\/www.alpha-therm.com\\\/en\\\/produkte\\\/overload-protection\\\/ntc-inrush-current-limiter\\\/\",\"name\":\"NTC inrush current limiter - Alpha Therm\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.alpha-therm.com\\\/en\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.alpha-therm.com\\\/en\\\/produkte\\\/overload-protection\\\/ntc-inrush-current-limiter\\\/#breadcrumb\"},\"inLanguage\":\"en-US\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.alpha-therm.com\\\/en\\\/produkte\\\/overload-protection\\\/ntc-inrush-current-limiter\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Startseite\",\"item\":\"https:\\\/\\\/www.alpha-therm.com\\\/en\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Overload protection\",\"item\":\"https:\\\/\\\/www.alpha-therm.com\\\/en\\\/produkte\\\/overload-protection\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"NTC inrush current limiter\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.alpha-therm.com\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/www.alpha-therm.com\\\/en\\\/\",\"name\":\"Alpha Therm\",\"description\":\"Ihr Spezialist f\u00fcr temperaturabh\u00e4ngige elektronische Bauelemente und den Schaltungsschutz\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.alpha-therm.com\\\/en\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.alpha-therm.com\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.alpha-therm.com\\\/en\\\/#organization\",\"name\":\"Alpha Therm GmbH\",\"url\":\"https:\\\/\\\/www.alpha-therm.com\\\/en\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.alpha-therm.com\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.alpha-therm.com\\\/wp-content\\\/uploads\\\/2023\\\/01\\\/cropped-Alpha-Therm-Logo-2.jpg\",\"contentUrl\":\"https:\\\/\\\/www.alpha-therm.com\\\/wp-content\\\/uploads\\\/2023\\\/01\\\/cropped-Alpha-Therm-Logo-2.jpg\",\"width\":1817,\"height\":366,\"caption\":\"Alpha Therm GmbH\"},\"image\":{\"@id\":\"https:\\\/\\\/www.alpha-therm.com\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.linkedin.com\\\/company\\\/alpha-therm-gmbh\\\/\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"NTC inrush current limiter - Alpha Therm","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.alpha-therm.com\/en\/produkte\/overload-protection\/ntc-inrush-current-limiter\/","og_locale":"en_US","og_type":"article","og_title":"NTC inrush current limiter - Alpha Therm","og_description":"In a circuit that contains a capacitor, filament, heating element, or inverter\/ballast for a fluorescent lamp, the inrush current can be 10 to 100 times higher than during normal operation. 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