{"id":10575,"date":"2026-07-20T05:51:01","date_gmt":"2026-07-20T05:51:01","guid":{"rendered":"https:\/\/ic-vendor.com\/1n4148ws-3\/"},"modified":"2026-07-20T05:51:01","modified_gmt":"2026-07-20T05:51:01","slug":"1n4148ws-3","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/es\/1n4148ws-3\/","title":{"rendered":"1N4148WS"},"content":{"rendered":"

Productos<\/h2>\n

The onsemi 1N4148WS is a small-signal silicon switching diode in a SOD-323FL (flat lead) surface mount package. With 75V repetitive reverse voltage, 150mA average rectified current, and fast reverse recovery time of 4ns, it is the SMD equivalent of the classic 1N4148 through-hole diode. The compact package and fast switching make it ideal for general-purpose switching and signal processing.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Repetitive Peak Reverse Voltage (VRRM)<\/td>\n75 V (onsemi), 100 V (some manufacturers)<\/td>\n<\/tr>\n
Non-Repetitive Peak Reverse Voltage (VRSM)<\/td>\n100 V<\/td>\n<\/tr>\n
Average Rectified Current (IO)<\/td>\n150 mA<\/td>\n<\/tr>\n
Repetitive Peak Forward Current (IFRM)<\/td>\n300 mA<\/td>\n<\/tr>\n
Non-Repetitive Peak Forward Surge Current (IFSM)<\/td>\n1.0A (t=1s), 4.0A (t=1\u00b5s)<\/td>\n<\/tr>\n
Forward Voltage (VF)<\/td>\n1.0V (max at IF=10mA), 1.25V (max at IF=150mA)<\/td>\n<\/tr>\n
Reverse Current (IR)<\/td>\n25nA (max at VR=20V), 5\u00b5A (max at VR=75V)<\/td>\n<\/tr>\n
Reverse Recovery Time (trr)<\/td>\n4.0 ns (max)<\/td>\n<\/tr>\n
Junction Capacitance (Cj)<\/td>\n4.0 pF (at VR=0V, f=1MHz)<\/td>\n<\/tr>\n
Power Dissipation<\/td>\n200 mW (at TA=25\u00b0C)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-55\u00b0C to +150\u00b0C<\/td>\n<\/tr>\n
Paquete<\/td>\nSOD-323FL (Case 477AB)<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Fast switching: trr = 4ns maximum<\/li>\n
  • Ultra-small SOD-323FL flat-lead package for high-density assembly<\/li>\n
  • MSL Level 1 (unlimited floor life)<\/li>\n
  • Matte tin (Sn) lead finish \u2014 Pb-free and RoHS compliant<\/li>\n
  • Green mold compound<\/li>\n
  • General-purpose switching diode for signal and logic applications<\/li>\n
  • Low junction capacitance: 4pF<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • General-purpose switching circuits<\/li>\n
    • Signal routing and logic gates<\/li>\n
    • Reverse polarity protection (low current)<\/li>\n
    • Free-wheeling diode for small relays<\/li>\n
    • Clipping and clamping circuits<\/li>\n
    • Mixing and detection in RF circuits<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The onsemi 1N4148WS is a small-signal silicon switching diode in a SOD-323FL (flat lead) surface mount package. With 75V repetitive reverse voltage, 150mA average rectified current, and fast reverse recovery time of 4ns, it is the SMD equivalent of the classic 1N4148 through-hole diode. The compact package and fast switching make it ideal […]<\/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":[1811,1908,1873,1911],"chip_brand":[182],"class_list":["post-10575","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","tag-1n4148ws","tag-onsemi","tag-smd","tag-switching-diode","chip_brand-onsemi"],"acf":{"brief_explanation":"75V 150mA fast switching diode, 4ns trr, SOD-323FL, onsemi, SMD equivalent of 1N4148","date_code":"","package_case":"SOD-323FL (Case 477AB) 2.5\u00d71.25\u00d70.9mm","in_stock":800000,"datasheet":"https:\/\/www.onsemi.com\/pdf\/datasheet\/1n4148ws-d.pdf","price":"$0.009 @ 3000+","product_introduction":"The onsemi 1N4148WS is a small-signal silicon epitaxial planar switching diode in a SOD-323FL surface mount package. As the SMD equivalent of the ubiquitous 1N4148 through-hole diode, it offers 75V repetitive reverse voltage, 150mA average rectified current, and an ultra-fast 4ns reverse recovery time. The flat-lead SOD-323FL package measures only 2.5\u00d71.25\u00d70.9mm, enabling high-density PCB assembly. With low junction capacitance (4pF), low reverse leakage (25nA at 20V), and MSL Level 1 rating, it is the go-to device for general-purpose signal switching, logic circuits, and protection applications.","working_principle":"The 1N4148WS is a PN junction diode manufactured using silicon epitaxial planar technology. Under forward bias (anode positive relative to cathode), current flows once the forward voltage exceeds approximately 0.7V (at 10mA), as charge carriers (electrons and holes) cross the PN junction. Under reverse bias, the depletion region widens and blocks current flow (only small leakage current of 25nA at 20V). The fast switching characteristic (trr=4ns) is achieved through gold doping of the silicon, which introduces recombination centers that rapidly clear stored minority carriers when the diode transitions from forward to reverse bias. This gold-doping process distinguishes switching diodes from rectifier diodes, which have much longer trr (microseconds) but lower leakage. The epitaxial construction ensures uniform breakdown characteristics and low noise.","pin_description":"Pin Description(Output pin definitions in table format only; return pure content without derivation or extra elaboration)","application_scenarios":"Application Scenarios (Output pin definitions in table format only; return pure content without derivation or extra elaboration)","alternative_models":"1N4148W (SOD-123, larger package, higher current); BAV99 (dual diode, SOT-23); 1N4148 (DO-35 through-hole, original); MMSD4148 (SOD-123FL); CMOD4148 (various manufacturers, SOD-323)"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/10575","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/comments?post=10575"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/10575\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/media?parent=10575"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/categories?post=10575"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/tags?post=10575"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/chip_brand?post=10575"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}