{"id":9113,"date":"2026-07-02T11:35:28","date_gmt":"2026-07-02T11:35:28","guid":{"rendered":"https:\/\/materialparts.com\/szmm5z24vt1g\/"},"modified":"2026-07-03T08:03:55","modified_gmt":"2026-07-03T08:03:55","slug":"szmm5z24vt1g","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/szmm5z24vt1g\/","title":{"rendered":"SZMM5Z24VT1G"},"content":{"rendered":"

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

The onsemi SZMM5Z24VT1G is a 500 mW Zener voltage regulator diode with a nominal Zener voltage of 24 V, housed in a compact SOD-523 package. The SZ prefix denotes automotive qualification with AEC-Q101 compliance and PPAP capability. It provides reliable voltage regulation and ESD protection in space-constrained automotive and industrial circuits.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Zener Voltage (Nominal)<\/td>\n24 V<\/td>\n<\/tr>\n
Zener Voltage Range<\/td>\n22.8 V to 25.6 V<\/td>\n<\/tr>\n
\u529f\u7387\u8017\u6563<\/td>\n500 mW<\/td>\n<\/tr>\n
Zener Impedance (ZZT)<\/td>\n55 \u03a9 @ IZT = 5 mA<\/td>\n<\/tr>\n
Zener Impedance (ZZK)<\/td>\n600 \u03a9 @ IZK = 0.25 mA<\/td>\n<\/tr>\n
Leakage Current<\/td>\n0.05 \u00b5A @ VR = 18 V<\/td>\n<\/tr>\n
Temperature Coefficient<\/td>\n18.9 mV\/\u00b0C<\/td>\n<\/tr>\n
ESD Rating<\/td>\nClass 3 (>16 kV HBM)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-55 \u00b0C to +150 \u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOD-523<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • AEC-Q101 qualified with PPAP capability (SZ prefix)<\/li>\n
  • 500 mW power rating on FR-4 board<\/li>\n
  • Compact SOD-523 package (1.2 x 0.8 x 0.7 mm)<\/li>\n
  • ESD Class 3 rating (>16 kV per HBM)<\/li>\n
  • Wide Zener voltage tolerance: \u00b15%<\/li>\n
  • Pb-free, RoHS compliant<\/li>\n
  • MSL 1 \u2014 unlimited floor life<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Automotive voltage regulation and clamping<\/li>\n
    • ESD and surge protection for signal lines<\/li>\n
    • Reference voltage generation<\/li>\n
    • Overvoltage protection in industrial control<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The onsemi SZMM5Z24VT1G is a 500 mW Zener voltage regulator diode with a nominal Zener voltage of 24 V, housed in a compact SOD-523 package. The SZ prefix denotes automotive qualification with AEC-Q101 compliance and PPAP capability. It provides reliable voltage regulation and ESD protection in space-constrained automotive and industrial circuits. Key Specifications […]<\/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":[679],"chip_brand":[144],"class_list":["post-9113","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","tag-szmm5z24vt1g","chip_brand-on"],"acf":{"brief_explanation":"500mW Zener diode, 24V, SOD-523, AEC-Q101, ESD Class 3 (>16kV)","date_code":"","package_case":"SOD-523 (1.2 x 0.8 x 0.7 mm)","in_stock":10432,"datasheet":"https:\/\/www.onsemi.com\/download\/data-sheet\/pdf\/mm5z2v4t1-d.pdf","price":"$0.03 @ 1ku","product_introduction":"The onsemi SZMM5Z24VT1G is a 24 V Zener voltage regulator diode in the automotive-qualified MM5Z series. The SZ prefix indicates that this device meets AEC-Q101 requirements with PPAP (Production Part Approval Process) capability, making it suitable for automotive applications requiring unique site and change control traceability. With a nominal Zener voltage of 24 V (range 22.8 V to 25.6 V at IZT = 5 mA), the device provides reliable voltage clamping and reference generation for 24 V automotive bus systems. The 500 mW power dissipation rating on FR-4 board is adequate for low-current regulation and transient suppression. The SOD-523 package occupies minimal PCB area (1.2 x 0.8 mm), making it ideal for high-density designs. ESD Class 3 (>16 kV HBM) provides robust protection against electrostatic discharge events during assembly and operation.","working_principle":"The SZMM5Z24VT1G operates in the reverse breakdown region of a PN junction. When the reverse voltage across the diode exceeds the Zener breakdown voltage (24 V nominal), current begins to flow through the device while the voltage across it remains approximately constant. This constant-voltage characteristic makes Zener diodes useful as voltage references and shunt regulators. In a typical shunt regulator circuit, the Zener diode is connected in parallel with the load through a series current-limiting resistor. As the input voltage or load current varies, the Zener diode adjusts its current to maintain a constant output voltage. The Zener impedance (55 \u03a9 at IZT = 5 mA) determines the regulation quality \u2014 lower impedance provides better voltage stability. The positive temperature coefficient of 18.9 mV\/\u00b0C means the Zener voltage increases slightly with temperature, which must be considered in precision applications. The device's ESD protection capability (>16 kV HBM) also makes it effective as a transient voltage suppressor for signal line protection.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>Cathode<\/td>Terminal<\/td>Polarity band side; connect to positive rail for regulation<\/td><\/tr>
      2<\/td>Anode<\/td>Terminal<\/td>Connect to ground for normal Zener operation<\/td><\/tr><\/table>","application_scenarios":"
      • 24V automotive bus overvoltage clamping protection<\/li>
      • ESD protection for automotive CAN\/LIN transceiver lines<\/li>
      • Voltage reference for ADC threshold comparison<\/li>
      • Industrial 24V I\/O module surge suppression<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        onsemi<\/td>MM5Z24VT1G<\/td>SOD-523<\/td>Commercial grade equivalent<\/td><\/tr>
        Nexperia<\/td>BZX585-C24<\/td>SOD-523<\/td>500mW, 24V Zener alternative<\/td><\/tr>
        Vishay<\/td>MMSZ5252ET1G<\/td>SOD-123<\/td>24V, 500mW, larger package<\/td><\/tr>
        Diodes Inc<\/td>BZX585C24-7<\/td>SOD-523<\/td>24V 500mW Zener<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9113","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=9113"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9113\/revisions"}],"predecessor-version":[{"id":9134,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9113\/revisions\/9134"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=9113"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=9113"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=9113"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=9113"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}