{"id":9827,"date":"2026-07-06T11:10:40","date_gmt":"2026-07-06T11:10:40","guid":{"rendered":"https:\/\/materialparts.com\/bzx84-b3v3\/"},"modified":"2026-07-06T11:10:40","modified_gmt":"2026-07-06T11:10:40","slug":"bzx84-b3v3","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/bzx84-b3v3\/","title":{"rendered":"BZX84-B3V3"},"content":{"rendered":"<h2>\u4ea7\u54c1\u6982\u89c8<\/h2>\n<p>The BZX84-B3V3 is a 3.3V Zener diode from NXP or Nexperia in a SOT-23 surface-mount package. It provides a stable 3.3V reference voltage with +\/-2% tolerance (B suffix), suitable for voltage regulation, reference, and protection circuits.<\/p>\n<h2>\u4e3b\u8981\u89c4\u683c<\/h2>\n<ul>\n<li>Type: Zener Voltage Regulator Diode<\/li>\n<li>Manufacturer: NXP \/ Nexperia<\/li>\n<li>Zener Voltage (VZ): 3.3V<\/li>\n<li>Tolerance: +\/-2% (B suffix)<\/li>\n<li>Test Current (IZT): 5mA<\/li>\n<li>Zener Impedance (ZZT): 85 Ohm @ IZT<\/li>\n<li>Reverse Leakage (IR): 5uA max @ VR=1V<\/li>\n<li>Power Dissipation: 350mW<\/li>\n<li>Package: SOT-23 (3-pin)<\/li>\n<li>Operating Temp: -65C to +150C<\/li>\n<li>RoHS: Compliant<\/li>\n<\/ul>\n<h2>\u7279\u70b9<\/h2>\n<ul>\n<li>Tight +\/-2% tolerance for precise voltage reference<\/li>\n<li>Small SOT-23 package for compact designs<\/li>\n<li>350mW power dissipation capability<\/li>\n<li>Wide -65C to +150C operating range<\/li>\n<\/ul>\n<h2>\u5e94\u7528<\/h2>\n<ul>\n<li>Voltage regulation<\/li>\n<li>Voltage reference circuits<\/li>\n<li>Overvoltage protection<\/li>\n<li>Level shifting<\/li>\n<li>Signal clipping<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Product Overview The BZX84-B3V3 is a 3.3V Zener diode from NXP or Nexperia in a SOT-23 surface-mount package. It provides a stable 3.3V reference voltage with +\/-2% tolerance (B suffix), suitable for voltage regulation, reference, and protection circuits. Key Specifications Type: Zener Voltage Regulator Diode Manufacturer: NXP \/ Nexperia Zener Voltage (VZ): 3.3V Tolerance: +\/-2% [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19,13],"tags":[1114],"chip_brand":[140],"class_list":["post-9827","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","tag-bzx84-b3v3","chip_brand-nexperia"],"acf":{"brief_explanation":"3.3V Zener diode, +\/-2%, 350mW, SOT-23, Nexperia BZX84","date_code":"","package_case":"SOT-23 (2.9 x 1.3 x 1.0mm)","in_stock":10505,"datasheet":"https:\/\/www.nexperia.com\/products\/diodes\/zener-diodes\/bzx84-series\/","price":"$0.03 @ 1ku","product_introduction":"The BZX84-B3V3 from Nexperia is a 3.3V Zener voltage regulator diode with +\/-2% tolerance, 350mW power dissipation, and 85 Ohm impedance in a SOT-23 surface-mount package.","working_principle":"The Zener diode operates in reverse breakdown. When the reverse voltage across the diode exceeds the Zener voltage (3.3V), current flows through the device while maintaining a relatively constant voltage across its terminals. The tight +\/-2% tolerance ensures the Zener voltage remains within 3.234V to 3.366V at the test current of 5mA. The low Zener impedance of 85 Ohm minimizes voltage changes with varying load current.","pin_description":"<table><tr><th>Pin<\/th><th>Name<\/th><th>Function<\/th><\/tr><tr><td>1<\/td><td>Cathode<\/td><td>Negative terminal (marked with band)<\/td><\/tr><tr><td>2<\/td><td>Anode<\/td><td>Positive terminal<\/td><\/tr><tr><td>3<\/td><td>Anode<\/td><td>Positive terminal (connected to pin 2 internally)<\/td><\/tr><\/table>","application_scenarios":"<ul><li>Voltage regulation<\/li><li>Voltage reference circuits<\/li><li>Overvoltage protection<\/li><li>Level shifting<\/li><\/ul>","alternative_models":"<table><tr><th>Model<\/th><th>Manufacturer<\/th><th>Key Spec<\/th><th>Package<\/th><\/tr><tr><td>MM3Z3V3BW<\/td><td>TSC\/Onsemi<\/td><td>3.3V Zener +\/-2%<\/td><td>SOD-323<\/td><\/tr><tr><td>BZX55C3V3<\/td><td>Nexperia<\/td><td>3.3V Zener +\/-5%<\/td><td>DO-35<\/td><\/tr><tr><td>1N4728A<\/td><td>onsemi<\/td><td>3.3V 1W Zener<\/td><td>DO-41<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9827","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=9827"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9827\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=9827"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=9827"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=9827"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=9827"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}