{"id":6286,"date":"2026-06-12T11:13:37","date_gmt":"2026-06-12T11:13:37","guid":{"rendered":"https:\/\/materialparts.com\/ksb772ystu\/"},"modified":"2026-06-12T11:13:37","modified_gmt":"2026-06-12T11:13:37","slug":"ksb772ystu","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/ksb772ystu\/","title":{"rendered":"KSB772YSTU"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The KSB772YSTU from onsemi is a PNP silicon power transistor rated at -40V, -3A in a compact SOT-89 package. With a DC current gain (hFE) of 60-400 at -500mA and transition frequency of 80MHz, it is suitable for medium-power audio amplification, relay driving, and general-purpose switching.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n
VCEO<\/td>\n-40V<\/td>\n<\/tr>\n
\u0622\u064a \u0633\u064a<\/td>\n-3A<\/td>\n<\/tr>\n
hFE<\/td>\n60-400 @IC=-500mA<\/td>\n<\/tr>\n
VCE(sat)<\/td>\n-0.5V (max) @IC=-1A, IB=-50mA<\/td>\n<\/tr>\n
fT<\/td>\n80MHz (typ)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOT-89<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-55 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +150 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 3A collector current for medium-power applications<\/li>\n
  • High hFE (60-400) for low base drive requirements<\/li>\n

80MHz transition frequency for audio and fast switching<\/td>\n
  • SOT-89 surface-mount package for compact layouts<\/li>\n
  • Complementary NPN type: KSC4738YSTU<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Audio power amplifier output stages<\/li>\n
    • Relay and solenoid drivers<\/li>\n
    • General-purpose power switching<\/li>\n
    • Voltage regulator pass elements<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The KSB772YSTU from onsemi is a PNP silicon power transistor rated at -40V, -3A in a compact SOT-89 package. With a DC current gain (hFE) of 60-400 at -500mA and transition frequency of 80MHz, it is suitable for medium-power audio amplification, relay driving, and general-purpose switching. Key Specifications VCEO -40V IC -3A hFE […]<\/p>\n","protected":false},"author":2,"featured_media":6373,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19,13],"tags":[],"chip_brand":[144],"class_list":["post-6286","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-on"],"acf":{"brief_explanation":"PNP silicon power transistor, -40V, -3A, hFE 60-400, SOT-89, 80MHz fT","date_code":"","package_case":"SOT-89 (4.5 x 2.5 x 1.5mm)","in_stock":9243,"datasheet":"https:\/\/www.onsemi.com\/download\/data-sheet\/pdf\/ksb772y-d.pdf","price":"$0.12 @1ku","product_introduction":"The KSB772YSTU is a PNP silicon power transistor from onsemi (formerly Fairchild) rated at -40V VCEO and -3A collector current. Packaged in a surface-mount SOT-89 outline, it offers a DC current gain range of 60-400 at -500mA and a transition frequency of 80MHz, making it suitable for audio amplification and medium-power switching applications where surface-mount construction is preferred.","working_principle":"The KSB772YSTU operates as a PNP bipolar junction transistor. Current flows from emitter to collector when a negative base-emitter voltage forward-biases the base-emitter junction. A small base current (IB) controls a much larger collector current (IC), with the ratio defined by hFE (60-400). In saturation mode, VCE(sat) reaches -0.5V maximum at IC=-1A, IB=-50mA, ensuring efficient switching. The 80MHz transition frequency indicates the frequency at which hFE drops to unity, making the device usable for audio frequency amplification and moderate-speed switching.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>Base<\/td>Base terminal (control input)<\/td><\/tr>
      2<\/td>Collector<\/td>Collector terminal (tab connection)<\/td><\/tr>
      3<\/td>Emitter<\/td>Emitter terminal<\/td><\/tr><\/table>","application_scenarios":"
      • Audio power amplifier output and driver stages<\/li>
      • Relay, solenoid, and motor drive circuits<\/li>
      • General-purpose medium-power switching<\/li>
      • Linear regulator pass transistor applications<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>VCEO<\/th>IC<\/th>Package<\/th><\/tr>
        KSB772LSTU<\/td>onsemi<\/td>-40V<\/td>-3A<\/td>SOT-89<\/td><\/tr>
        BD136-16<\/td>Nexperia<\/td>-45V<\/td>-1.5A<\/td>SOT-32<\/td><\/tr>
        2SB1426T100R<\/td>Panasonic<\/td>-60V<\/td>-3A<\/td>SOT-89<\/td><\/tr>
        MMBTA92<\/td>onsemi<\/td>-300V<\/td>-500mA<\/td>SOT-23<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6286","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=6286"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6286\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media\/6373"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=6286"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=6286"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=6286"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=6286"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}