{"id":6693,"date":"2026-06-19T01:24:50","date_gmt":"2026-06-19T01:24:50","guid":{"rendered":"https:\/\/materialparts.com\/buk9y29-40e\/"},"modified":"2026-06-19T01:24:50","modified_gmt":"2026-06-19T01:24:50","slug":"buk9y29-40e","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/buk9y29-40e\/","title":{"rendered":"BUK9Y29-40E"},"content":{"rendered":"

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

The BUK9Y29-40E from Nexperia is an AEC-Q101 qualified N-channel logic-level MOSFET rated at 40V\/25A with 29 m\u03a9 maximum on-resistance at VGS=5V in a compact LFPAK56 (Power-SO8) package. Using TrenchMOS technology, it offers true 5V logic-level drive capability, 175\u00b0C maximum junction temperature, and repetitive avalanche rating for robust automotive and industrial switching applications.<\/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\n\n\n\n\n\n\n\n
\u0646\u0648\u0639 \u0627\u0644\u0642\u0646\u0627\u0629<\/td>\nN-channel enhancement mode<\/td>\n<\/tr>\n
VDS (max)<\/td>\n40V<\/td>\n<\/tr>\n
ID (max)<\/td>\n25A @ VGS=10V, Tmb=25\u00b0C<\/td>\n<\/tr>\n
RDS(\u062a\u0634\u063a\u064a\u0644) @ VGS=10 \u0641\u0648\u0644\u062a<\/td>\n25 m\u03a9 max<\/td>\n<\/tr>\n
RDS(on) @ VGS=5V<\/td>\n29 m\u03a9 max (logic level)<\/td>\n<\/tr>\n
VGS(th)<\/td>\n1.7V typical, 0.5V min, 2.45V max<\/td>\n<\/tr>\n
QG (total gate charge)<\/td>\n5 nC typical @ VGS=5V<\/td>\n<\/tr>\n
QGD<\/td>\n1.9 nC typical<\/td>\n<\/tr>\n
CISS<\/td>\n498 pF typical<\/td>\n<\/tr>\n
COSS<\/td>\n85 pF typical<\/td>\n<\/tr>\n
Ptot<\/td>\n37W @ Tmb=25\u00b0C<\/td>\n<\/tr>\n
Avalanche Rating<\/td>\nRepetitive avalanche rated<\/td>\n<\/tr>\n
\u0627\u0644\u0645\u0624\u0647\u0644\u0627\u062a<\/td>\nAEC-Q101<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-55\u00b0C to +175\u00b0C (junction)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nLFPAK56 \/ Power-SO8 (SOT669)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • AEC-Q101 qualified for automotive applications<\/li>\n
  • True logic-level: 29 m\u03a9 at VGS=5V, directly MCU-drivable<\/li>\n
  • 175\u00b0C max junction temperature for thermally demanding environments<\/li>\n
  • Repetitive avalanche rated for rugged switching<\/li>\n
  • LFPAK56 copper-clip technology: low RDS(on) and Rth<\/li>\n
  • Low gate charge (5 nC) for fast switching and low driving loss<\/li>\n
  • Visual AOI solder inspection (no X-ray needed)<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • 12V automotive system load switching<\/li>\n
    • Motor, lamp, and solenoid control<\/li>\n
    • Transmission control and start-stop systems<\/li>\n
    • Industrial power switching and DC-DC converters<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The BUK9Y29-40E from Nexperia is an AEC-Q101 qualified N-channel logic-level MOSFET rated at 40V\/25A with 29 m\u03a9 maximum on-resistance at VGS=5V in a compact LFPAK56 (Power-SO8) package. Using TrenchMOS technology, it offers true 5V logic-level drive capability, 175\u00b0C maximum junction temperature, and repetitive avalanche rating for robust automotive and industrial switching applications. Key […]<\/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":[13,24],"tags":[],"chip_brand":[140],"class_list":["post-6693","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-microcontrollers-processors","chip_brand-nexperia"],"acf":{"brief_explanation":"N-ch logic-level MOSFET, 40V, 25A, 29m\u03a9@5V, AEC-Q101, LFPAK56","date_code":"","package_case":"LFPAK56 \/ Power-SO8 \/ SOT669 (5.2\u00d76.2\u00d71.1 mm, 1.27mm pitch)","in_stock":8000,"datasheet":"https:\/\/assets.nexperia.com\/documents\/data-sheet\/BUK9Y29-40E.pdf","price":"$0.65 @ 1ku","product_introduction":"The BUK9Y29-40E from Nexperia is an AEC-Q101 qualified N-channel logic-level MOSFET with 40V\/25A rating and 29 m\u03a9 max RDS(on) at 5V gate drive in a compact LFPAK56 package. Using TrenchMOS technology with 175\u00b0C junction rating, repetitive avalanche capability, and low 5 nC gate charge, it is ideal for 12V automotive load switching, motor\/solenoid control, and industrial power applications driven directly from MCU GPIO.","working_principle":"The BUK9Y29-40E uses Nexperia's TrenchMOS technology with vertical N-channel trench gate structure. The trench gate geometry increases channel density, reducing on-resistance to 29 m\u03a9 at only 5V gate drive (logic level). The threshold voltage (VGS(th) = 0.5V min, 1.7V typ) ensures the device is fully enhanced at 5V, making it directly drivable from 3.3V or 5V microcontroller GPIO pins without a dedicated gate driver. The LFPAK56 (Power-SO8) package uses copper-clip technology instead of wire bonds, reducing package inductance and resistance while improving thermal performance (Rth(j-mb) = 4.03 K\/W). The 175\u00b0C maximum junction temperature and repetitive avalanche rating provide robustness against voltage spikes during inductive load switching. The low gate charge (5 nC) enables high-frequency PWM switching with minimal gate drive loss.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>Source<\/td>Power<\/td>Source terminal (connected to tab)<\/td><\/tr>\n
      2<\/td>Gate<\/td>Input<\/td>Gate terminal (logic-level compatible)<\/td><\/tr>\n
      3<\/td>Source<\/td>Power<\/td>Source terminal (connected to tab)<\/td><\/tr>\n
      4-8 (tab)<\/td>Drain<\/td>Power<\/td>Drain terminal (copper clip, exposed pad)<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • 12V automotive load switching: lamps, heaters, solenoids<\/li>\n
      • Motor control: BLDC, DC motor H-bridge legs<\/li>\n
      • Transmission control and start-stop micro-hybrid systems<\/li>\n
      • Industrial DC-DC converter and power switching stages<\/li>\n<\/ul>","alternative_models":"\n
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>\n
        Nexperia<\/td>BUK7Y29-40E<\/td>LFPAK56<\/td>Standard-level (10V drive) version<\/td><\/tr>\n
        Nexperia<\/td>BUK9Y21-40E<\/td>LFPAK56<\/td>Lower RDS(on) (17 m\u03a9), higher current<\/td><\/tr>\n
        Infineon<\/td>BSZ029N04LS<\/td>SuperSO8<\/td>40V, 2.9 m\u03a9, logic level, comparable<\/td><\/tr>\n
        ST<\/td>STL85N3LLH6<\/td>PowerFLAT-5x6<\/td>30V, 5.8 m\u03a9, logic level alternative<\/td><\/tr>\n
        ON Semi<\/td>NTMFS4C310N<\/td>Power-56<\/td>40V, 3.1 m\u03a9, logic level<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6693","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=6693"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6693\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=6693"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=6693"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=6693"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=6693"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}