{"id":7633,"date":"2026-06-26T07:03:20","date_gmt":"2026-06-26T07:03:20","guid":{"rendered":"https:\/\/materialparts.com\/stw20nm50\/"},"modified":"2026-06-26T14:03:24","modified_gmt":"2026-06-26T14:03:24","slug":"stw20nm50","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/stw20nm50\/","title":{"rendered":"STW20NM50"},"content":{"rendered":"

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

The STW20NM50 from STMicroelectronics is a 500V N-channel MDmesh Power MOSFET with 200mOhm RDS(on), 20A ID in TO-247 package.<\/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
VDS<\/td>\n500V<\/td>\n<\/tr>\n
RDS(on) max<\/td>\n250 mOhm @ VGS=10V<\/td>\n<\/tr>\n
ID (TC=25C)<\/td>\n20A<\/td>\n<\/tr>\n
ID (TC=100C)<\/td>\n12.6A<\/td>\n<\/tr>\n
VGS(th)<\/td>\n3-5V<\/td>\n<\/tr>\n
Qg total<\/td>\n40 nC typical<\/td>\n<\/tr>\n
\u0633\u064a\u0633<\/td>\n1480 pF<\/td>\n<\/tr>\n
EAS<\/td>\n650 mJ (single pulse)<\/td>\n<\/tr>\n
\u062f\u0641\/\u062f\u064a\u062a<\/td>\n15 \u0641\u0648\u0644\u062a\/\u062b\u0627\u0646\u064a\u0629<\/td>\n<\/tr>\n
PTOT<\/td>\n192W @ TC=25C<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nTO-247<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-65 to +150 C (TJ)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • MDmesh second-generation technology<\/li>\n
  • 100% avalanche tested<\/li>\n
  • Low 40nC gate charge<\/li>\n
  • High dv\/dt capability (15V\/ns)<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Switch-mode power supplies<\/li>\n
    • Half\/full bridge converters<\/li>\n
    • Motor drive inverters<\/li>\n
    • Welding equipment<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The STW20NM50 from STMicroelectronics is a 500V N-channel MDmesh Power MOSFET with 200mOhm RDS(on), 20A ID in TO-247 package. Key Specifications VDS 500V RDS(on) max 250 mOhm @ VGS=10V ID (TC=25C) 20A ID (TC=100C) 12.6A VGS(th) 3-5V Qg total 40 nC typical Ciss 1480 pF EAS 650 mJ (single pulse) dv\/dt 15 V\/ns […]<\/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":[13,22],"tags":[],"chip_brand":[142],"class_list":["post-7633","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-video-ics","chip_brand-st"],"acf":{"brief_explanation":"500V N-ch MOSFET, 200mOhm, 20A, MDmesh, TO-247","date_code":"","package_case":"TO-247 (15.75 x 9.40 x 5.15 mm)","in_stock":2500,"datasheet":"https:\/\/www.st.com\/resource\/en\/datasheet\/stb20nm50t4.pdf","price":"$3.50 @ 100+","product_introduction":"The STW20NM50 from STMicroelectronics is a 500V N-channel Power MOSFET using second-generation MDmesh technology in TO-247 package. The MDmesh multiple-drain structure dramatically reduces RDS(on) to 200mOhm typical while maintaining low gate charge of 40nC. The device is 100% avalanche tested with 650mJ single-pulse energy rating. The 192W power dissipation and low thermal resistance (0.65C\/W) enable high-power switching applications.","working_principle":"The STW20NM50 operates as a high-voltage N-channel power MOSFET using MDmesh technology. (1) The MDmesh (Multiple Drain mesh) structure uses a strip layout for the drain region, reducing the JFET effect and on-resistance compared to conventional planar DMOS. The vertical current flow through multiple parallel strips provides low RDS(on) of 200mOhm with 500V breakdown voltage. (2) The gate charge of 40nC enables fast switching with modest gate drive current. At VDD=400V, ID=20A, the typical turn-on delay is 24ns with 16ns rise time, and turn-off delay of 40ns with 12ns fall time. (3) The integrated body diode provides a freewheeling path with 1.5V forward voltage at 20A. The reverse recovery time of 350ns and Qrr of 4.6uC should be considered for bridge and half-bridge topologies. The 15V\/ns dv\/dt rating ensures robustness in inductive switching applications.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>G<\/td>Gate<\/td><\/tr>
      2<\/td>D<\/td>Drain (tab)<\/td><\/tr>
      3<\/td>S<\/td>Source<\/td><\/tr><\/table>","application_scenarios":"
      • SMPS primary-side switching with 500V rating<\/li>
      • Half\/full bridge converters with 40nC low Qg<\/li>
      • Motor drive inverters with 650mJ avalanche rating<\/li>
      • Welding equipment with 192W power dissipation<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        STW20NM50FD<\/td>ST<\/td>Fast body diode version<\/td><\/tr>
        STW26NM50<\/td>ST<\/td>30A, 100mOhm, higher power<\/td><\/tr>
        FCA20N60N<\/td>Fairchild<\/td>600V, SuperFET<\/td><\/tr>
        IRFP460PBF<\/td>Infineon<\/td>500V, 20A, TO-247<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7633","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=7633"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7633\/revisions"}],"predecessor-version":[{"id":7668,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7633\/revisions\/7668"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=7633"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=7633"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=7633"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=7633"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}