{"id":7472,"date":"2026-06-24T07:10:14","date_gmt":"2026-06-24T07:10:14","guid":{"rendered":"https:\/\/materialparts.com\/bc847bt-7-f\/"},"modified":"2026-06-24T07:10:14","modified_gmt":"2026-06-24T07:10:14","slug":"bc847bt-7-f","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/bc847bt-7-f\/","title":{"rendered":"BC847BT-7-F"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The BC847BT-7-F from Diodes Incorporated is an NPN general-purpose bipolar junction transistor rated at 45V and 100mA in a SOT-523 (SC-75) package. With hFE of 200-450 (B group), it provides high gain for signal amplification and switching in ultra-compact footprint.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
\u7c7b\u578b<\/td>\nNPN<\/td>\n<\/tr>\n
VCEO<\/td>\n45 V<\/td>\n<\/tr>\n
IC (max)<\/td>\n100 mA<\/td>\n<\/tr>\n
VCE(sat)<\/td>\n0.25 V @ 10mA<\/td>\n<\/tr>\n
hFE (B group)<\/td>\n200 – 450<\/td>\n<\/tr>\n
fT<\/td>\n100 MHz<\/td>\n<\/tr>\n
\u529f\u7387\u8017\u6563<\/td>\n200 mW<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOT-523 (SC-75)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-55\u00b0C to +150\u00b0C (Tj)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Ultra-compact SOT-523 package for high-density PCB designs<\/li>\n
  • High hFE of 200-450 (B group) for sensitive signal amplification<\/li>\n
  • Low VCE(sat) of 0.25V for efficient switching<\/li>\n
  • Complementary to BC857 PNP transistor<\/li>\n
  • Lead-free and RoHS compliant<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Small-signal amplification in portable electronics<\/li>\n
    • Logic level translation and interface circuits<\/li>\n
    • Sensor signal conditioning<\/li>\n
    • LED indicator driver circuits<\/li>\n
    • Low-power switching applications<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The BC847BT-7-F from Diodes Incorporated is an NPN general-purpose bipolar junction transistor rated at 45V and 100mA in a SOT-523 (SC-75) package. With hFE of 200-450 (B group), it provides high gain for signal amplification and switching in ultra-compact footprint. Key Specifications Type NPN VCEO 45 V IC (max) 100 mA VCE(sat) 0.25 […]<\/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":[13,56],"tags":[],"chip_brand":[193],"class_list":["post-7472","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-mosfets","chip_brand-diodes-inc"],"acf":{"brief_explanation":"NPN BJT, 45V, 100mA, hFE 200-450, SOT-523, high gain","date_code":"","package_case":"SOT-523 \/ SC-75 (1.6 x 0.8 mm)","in_stock":15678,"datasheet":"https:\/\/www.diodes.com\/part\/BC847B\/","price":"\/tmp\/tmp3xrpk70n.sh.02 @ 1ku","product_introduction":"The BC847BT-7-F from Diodes Incorporated is a high-gain NPN general-purpose bipolar junction transistor in an ultra-compact SOT-523 (SC-75) surface-mount package. The B gain group provides hFE of 200-450, making it suitable for sensitive signal amplification and high-gain switching applications. Rated at 45V VCEO and 100mA continuous collector current, it offers low saturation voltage of 0.25V at 10mA for efficient switching operation. The tiny 1.6 x 0.8mm SOT-523 package enables high component density in portable and space-constrained electronics.","working_principle":"The BC847BT-7-F operates as a standard NPN bipolar junction transistor. (1) Current flows from collector to emitter when the base-emitter junction is forward biased at approximately 0.7V. The base current is amplified by the current gain (hFE = 200-450) to control a proportionally larger collector current. (2) The high hFE enables the transistor to be driven from high-impedance signal sources, making it ideal for sensor interfaces and logic-level signal amplification. (3) In switching applications, the low VCE(sat) of 0.25V minimizes power dissipation during the on-state, while the 100MHz transition frequency supports moderate-speed switching.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>Base<\/td>Control input<\/td><\/tr>
      2<\/td>Emitter<\/td>Current output<\/td><\/tr>
      3<\/td>Collector<\/td>Current input<\/td><\/tr><\/table>","application_scenarios":"
      • Small-signal amplification in battery-powered portable electronics<\/li>
      • Logic-level signal buffering and translation between voltage domains<\/li>
      • Sensor interface signal conditioning with high input impedance<\/li>
      • LED indicator driver with 100mA current capability<\/li>
      • Low-power switching in handheld and wearable devices<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        BC847BLT-7-F<\/td>Diodes Inc<\/td>A group, hFE 110-220<\/td><\/tr>
        BC847CCT-7-F<\/td>Diodes Inc<\/td>C group, hFE 420-800<\/td><\/tr>
        BC847B-7-F<\/td>Diodes Inc<\/td>SOT-23 package version<\/td><\/tr>
        MMBT3904<\/td>onsemi<\/td>NPN, 200mA, 40V, SOT-23<\/td><\/tr>
        BC850B<\/td>Nexperia<\/td>NPN, 45V, 100mA, SOT-23<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7472","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=7472"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7472\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=7472"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=7472"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=7472"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7472"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}