{"id":11313,"date":"2026-07-26T04:26:37","date_gmt":"2026-07-26T04:26:37","guid":{"rendered":"https:\/\/ic-vendor.com\/mmbta42q-7-f\/"},"modified":"2026-07-26T04:26:37","modified_gmt":"2026-07-26T04:26:37","slug":"mmbta42q-7-f","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/mmbta42q-7-f\/","title":{"rendered":"MMBTA42Q-7-F"},"content":{"rendered":"

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

The Diodes Inc MMBTA42Q-7-F is an NPN high-voltage general-purpose transistor. 300V VCEO, 500mA IC, AEC-Q101 qualified in SOT-23 package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
\u7c7b\u578b<\/td>\nNPN High-Voltage<\/td>\n<\/tr>\n
VCEO<\/td>\n300V<\/td>\n<\/tr>\n
\u96c6\u6210\u7535\u8def<\/td>\n500mA<\/td>\n<\/tr>\n
hFE<\/td>\n30-40 typ @ 1mA<\/td>\n<\/tr>\n
VBE(sat)<\/td>\n0.9V max<\/td>\n<\/tr>\n
fT<\/td>\n50 MHz typ<\/td>\n<\/tr>\n
\u8d44\u683c<\/td>\nAEC-Q101<\/td>\n<\/tr>\n
Operating Temp<\/td>\n-55 to +150C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOT-23 (2.9×1.3mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • AEC-Q101 automotive qualified<\/li>\n
  • 300V high voltage capability<\/li>\n
  • 500mA collector current<\/li>\n
  • SOT-23 compact package<\/li>\n
  • General-purpose amplifier\/switch<\/li>\n
  • RoHS compliant<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Automotive relay driver<\/li>\n
    • LED string drive transistor<\/li>\n
    • High-voltage level shifting<\/li>\n
    • Industrial control switching<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The Diodes Inc MMBTA42Q-7-F is an NPN high-voltage general-purpose transistor. 300V VCEO, 500mA IC, AEC-Q101 qualified in SOT-23 package. Key Specifications Type NPN High-Voltage VCEO 300V IC 500mA hFE 30-40 typ @ 1mA VBE(sat) 0.9V max fT 50 MHz typ Qualification AEC-Q101 Operating Temp -55 to +150C Package SOT-23 (2.9×1.3mm) Features AEC-Q101 automotive […]<\/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":[2588],"chip_brand":[193],"class_list":["post-11313","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-mosfets","tag-mmbta42q-7-f","chip_brand-diodes-inc"],"acf":{"brief_explanation":"NPN 300V 500mA, AEC-Q101, SOT-23, -55 to 150C","date_code":"","package_case":"SOT-23 (2.9x1.3x1.0mm)","in_stock":11236,"datasheet":"https:\/\/www.diodes.com\/part\/mmbta42q-7\/","price":"$0.08 @ 3ku","product_introduction":"The MMBTA42Q-7-F from Diodes Inc is an AEC-Q101 automotive NPN high-voltage transistor rated 300V VCEO and 500mA IC in SOT-23 package. The 300V rating suits relay driving, high-voltage level shifting, and LED string driving in automotive and industrial applications. hFE of 30-40 provides adequate gain for saturated switching with moderate base drive.","working_principle":"Standard planar NPN epitaxial structure. The high-voltage collector design uses a lightly-doped collector drift region to support 300V without avalanche breakdown. Base drive current (IB) controls collector current (IC = hFE * IB). For saturated switching, IB must exceed IC\/hFE(sat) to ensure VCE(sat) < 0.9V.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>B<\/td>Base<\/td><\/tr>
      2<\/td>E<\/td>Emitter<\/td><\/tr>
      3<\/td>C<\/td>Collector<\/td><\/tr><\/table>","application_scenarios":"
      • Relay driver<\/li>
      • LED string drive<\/li>
      • HV level shift<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/11313","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/comments?post=11313"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/11313\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=11313"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=11313"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=11313"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=11313"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}