{"id":6610,"date":"2026-06-18T15:38:25","date_gmt":"2026-06-18T15:38:25","guid":{"rendered":"https:\/\/materialparts.com\/1n4148ws\/"},"modified":"2026-06-18T15:38:25","modified_gmt":"2026-06-18T15:38:25","slug":"1n4148ws","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/1n4148ws\/","title":{"rendered":"1N4148WS"},"content":{"rendered":"

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

The 1N4148WS is a high-speed switching diode from ON Semiconductor in a compact SOD-323 surface-mount package. It is the SMD equivalent of the classic 1N4148 through-hole diode, offering 100V reverse voltage, 150 mA average forward current, and fast reverse recovery time of 4 ns. Ideal for general-purpose switching, signal routing, and protection in space-constrained PCB designs.<\/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
Reverse Voltage (VR)<\/td>\n100V (non-repetitive), 75V (repetitive)<\/td>\n<\/tr>\n
Forward Current (IF)<\/td>\n150 mA (average rectified), 300 mA (peak)<\/td>\n<\/tr>\n
Forward Voltage (VF)<\/td>\n1.0V max @ 10 mA<\/td>\n<\/tr>\n
Reverse Current (IR)<\/td>\n25 nA max @ 20V<\/td>\n<\/tr>\n
Reverse Recovery Time (trr)<\/td>\n4 ns (max)<\/td>\n<\/tr>\n
Junction Capacitance<\/td>\n4 pF max @ 0V, 1 MHz<\/td>\n<\/tr>\n
\u062a\u0628\u062f\u064a\u062f \u0627\u0644\u0637\u0627\u0642\u0629<\/td>\n200 mW<\/td>\n<\/tr>\n
Forward Surge Current<\/td>\n2A @ 1 \u00b5s pulse<\/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 +150\u00b0C (junction)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOD-323FL (2.5\u00d71.25\u00d70.9 mm)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Ultra-fast switching: 4 ns reverse recovery time<\/li>\n
  • Low forward voltage drop: 1.0V max at 10 mA<\/li>\n
  • Very low reverse leakage: 25 nA at 20V<\/li>\n
  • Small SOD-323FL package for high-density PCBs<\/li>\n
  • Moisture sensitivity level 1 (unlimited floor life)<\/li>\n
  • Halogen-free and RoHS compliant<\/li>\n
  • Industry-standard 1N4148 equivalent in SMD<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • General-purpose switching and signal routing<\/li>\n
    • Reverse polarity protection in low-current circuits<\/li>\n
    • Logic gate steering and OR-ing diodes<\/li>\n
    • Snubber and clamp circuits<\/li>\n
    • ESD protection and voltage reference steering<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The 1N4148WS is a high-speed switching diode from ON Semiconductor in a compact SOD-323 surface-mount package. It is the SMD equivalent of the classic 1N4148 through-hole diode, offering 100V reverse voltage, 150 mA average forward current, and fast reverse recovery time of 4 ns. Ideal for general-purpose switching, signal routing, and protection in […]<\/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],"tags":[],"chip_brand":[182],"class_list":["post-6610","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","chip_brand-onsemi"],"acf":{"brief_explanation":"Switching diode, 100V, 150mA, 4ns trr, SOD-323","date_code":"","package_case":"SOD-323FL (2.5\u00d71.25\u00d70.9 mm)","in_stock":25000,"datasheet":"https:\/\/www.onsemi.com\/download\/data-sheet\/pdf\/1n4148ws-d.pdf","price":"$0.01 @ 1ku","product_introduction":"The 1N4148WS from ON Semiconductor is the surface-mount version of the ubiquitous 1N4148 switching diode, packaged in a compact SOD-323FL. It offers 100V reverse voltage, 150 mA forward current, and 4 ns reverse recovery time, making it ideal for high-speed switching, signal steering, and protection in space-constrained designs. With low 25 nA reverse leakage and MSL-1 rating, it is the go-to SMD switching diode for virtually every electronics application.","working_principle":"The 1N4148WS is a silicon epitaxial planar diode that conducts current in the forward direction when the anode is positive relative to the cathode, and blocks current in the reverse direction. The fast 4 ns reverse recovery time is achieved through gold-doped silicon, which introduces recombination centers that rapidly remove stored charge when the diode switches from forward to reverse bias. The low junction capacitance (4 pF) minimizes signal distortion in high-frequency circuits. The cathode is indicated by a band on the package body.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>Cathode<\/td>Terminal<\/td>Diode cathode (indicated by band marking)<\/td><\/tr>\n
      2<\/td>Anode<\/td>Terminal<\/td>Diode anode<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • General-purpose switching and logic signal steering in digital circuits<\/li>\n
      • Reverse polarity protection for low-current power supply inputs<\/li>\n
      • OR-ing diodes for redundant power supply configurations<\/li>\n
      • Snubber and clamp circuits for inductive transient suppression<\/li>\n
      • ESD steering and voltage reference protection networks<\/li>\n<\/ul>","alternative_models":"\n
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>\n
        Vishay<\/td>1N4148WS-E3-08<\/td>SOD-323<\/td>Direct equivalent from Vishay<\/td><\/tr>\n
        Toshiba<\/td>1N4148WS<\/td>SOD-323<\/td>Direct equivalent from Toshiba<\/td><\/tr>\n
        Nexperia<\/td>1N4148WS<\/td>SOD-323<\/td>Direct equivalent from Nexperia<\/td><\/tr>\n
        ON Semiconductor<\/td>1N4148W-7-F<\/td>SOD-123<\/td>Larger SOD-123 package variant<\/td><\/tr>\n
        Various<\/td>1N4148<\/td>DO-35<\/td>Through-hole original version<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6610","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=6610"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6610\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=6610"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=6610"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=6610"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=6610"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}