![\"\"](\"https:\/\/www.lxbchip.com\/wp-content\/uploads\/2026\/10\/FZT857TA.jpg\")
<\/p>\nThe FZT857TA is a high-voltage NPN bipolar junction transistor from Diodes Incorporated, offering a collector-emitter breakdown voltage of 300V and a continuous collector current of 3.5A. Housed in a compact SOT-223 package, it delivers robust switching capability in a small footprint suited to space-constrained power boards.<\/p>\n
A key advantage of this device is its very low saturation voltage, which keeps on-state power loss and board temperature down during switching. This makes the FZT857TA well suited for LED lighting drivers, switch-mode power supplies, battery chargers, relay drivers and industrial load-switching circuits where efficiency and thermal management matter.<\/p>\n
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The transistor also offers high peak pulse current capability and a wide operating temperature range, enabling dependable operation under the repeated stress and environmental variation typical of industrial equipment. Its 300V rating allows it to handle line-voltage rails and higher bus voltages encountered in many power-conversion stages.<\/p>\n
Because many power-supply and lighting boards are qualified around a specific transistor, the exact part number often needs to be reproduced over the product’s entire lifecycle. The FZT857TA is an established, widely used part with proven field reliability, making it a safe choice for long-lifecycle designs and a practical replacement for boards that have been in service for years.<\/p>\n
Supply conditions for high-voltage discrete parts have tightened across the industry. LXBCHIP maintains genuine, traceable, pre-tested stock of the FZT857TA, helping customers avoid extended lead times and counterfeit risk. Authentic sourcing is especially important for high-voltage switching devices, where fake or re-marked parts can fail dangerously.<\/p>\n
LXBCHIP supports sample and volume orders, with datasheets and application guidance available. For teams designing or maintaining power-conversion hardware, securing verified FZT857TA inventory helps protect production schedules, field reliability and safety.<\/p>","protected":false},"excerpt":{"rendered":"
The FZT857TA is a high-voltage NPN bipolar junction transistor from Diodes Incorporated, offering a collector-emitter breakdown voltage of 300V and<\/p>","protected":false},"author":1,"featured_media":13215,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-13230","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.lxbchip.com\/ar\/wp-json\/wp\/v2\/posts\/13230","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lxbchip.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lxbchip.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lxbchip.com\/ar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lxbchip.com\/ar\/wp-json\/wp\/v2\/comments?post=13230"}],"version-history":[{"count":0,"href":"https:\/\/www.lxbchip.com\/ar\/wp-json\/wp\/v2\/posts\/13230\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lxbchip.com\/ar\/wp-json\/wp\/v2\/media\/13215"}],"wp:attachment":[{"href":"https:\/\/www.lxbchip.com\/ar\/wp-json\/wp\/v2\/media?parent=13230"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lxbchip.com\/ar\/wp-json\/wp\/v2\/categories?post=13230"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lxbchip.com\/ar\/wp-json\/wp\/v2\/tags?post=13230"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}