{"id":7796,"date":"2026-06-27T03:26:25","date_gmt":"2026-06-27T03:26:25","guid":{"rendered":"https:\/\/materialparts.com\/1n4733atr-2\/"},"modified":"2026-06-27T03:26:25","modified_gmt":"2026-06-27T03:26:25","slug":"1n4733atr-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/1n4733atr-2\/","title":{"rendered":"1N4733ATR"},"content":{"rendered":"

Productos<\/h2>\n

The 1N4733ATR is a 5.1V, 1W zener diode in a DO-41 axial lead package. Part of the industry-standard 1N4728A-1N4758A series, it provides \u00b15% voltage tolerance with 7 Ohm maximum zener impedance at 49 mA test current.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
Zener Voltage (Vz)<\/td>\n5.1 V (nominal)<\/td>\n<\/tr>\n
Vz Tolerance<\/td>\n\u00b15%<\/td>\n<\/tr>\n
Power Dissipation<\/td>\n1 W (at TL \u2264 50\u00b0C)<\/td>\n<\/tr>\n
Test Current (Izt)<\/td>\n49 mA<\/td>\n<\/tr>\n
Zener Impedance (Zzt)<\/td>\n7 \u03a9 max at Izt<\/td>\n<\/tr>\n
Reverse Leakage (Ir)<\/td>\n10 \u00b5A at Vr = 1V<\/td>\n<\/tr>\n
Forward Voltage (Vf)<\/td>\n1.2 V max at If = 200 mA<\/td>\n<\/tr>\n
Surge Current (Izsm)<\/td>\n890 mA<\/td>\n<\/tr>\n
Temperature Coefficient<\/td>\n-0.01% to +0.04%\/\u00b0C<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-65\u00b0C to +175\u00b0C (Tj)<\/td>\n<\/tr>\n
Paquete<\/td>\nDO-41 (DO-204AL), Axial<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Industry-standard 1N4728A-1N4758A series<\/li>\n
  • 5.1V nominal zener voltage with \u00b15% tolerance<\/li>\n
  • 1W power dissipation rating<\/li>\n
  • Low zener impedance: 7 \u03a9 max<\/li>\n
  • Through-hole DO-41 axial package<\/li>\n
  • Wide operating temperature: -65\u00b0C to +175\u00b0C<\/li>\n
  • AEC-Q101 qualified (Vishay version)<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Voltage regulation and reference<\/li>\n
    • Overvoltage protection circuits<\/li>\n
    • Power supply clamping<\/li>\n
    • Signal conditioning<\/li>\n
    • General-purpose voltage stabilization<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The 1N4733ATR is a 5.1V, 1W zener diode in a DO-41 axial lead package. Part of the industry-standard 1N4728A-1N4758A series, it provides \u00b15% voltage tolerance with 7 Ohm maximum zener impedance at 49 mA test current. Key Specifications Zener Voltage (Vz) 5.1 V (nominal) Vz Tolerance \u00b15% Power Dissipation 1 W (at TL […]<\/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":[57,13],"tags":[],"chip_brand":[144],"class_list":["post-7796","post","type-post","status-publish","format-standard","hentry","category-insulated-gate-bipolar-transistors-igbt","category-integrated-circuits-ics","chip_brand-on"],"acf":{"brief_explanation":"5.1V 1W zener diode, 7 Ohm Zzt, DO-41 axial, AEC-Q101","date_code":"","package_case":"DO-41 \/ DO-204AL (Axial, 2.6mm dia x 4.1mm length)","in_stock":10380,"datasheet":"https:\/\/www.onsemi.com\/pdf\/datasheet\/1n4728a-d.pdf","price":"$0.05 @ 3ku","product_introduction":"The 1N4733ATR is a 5.1V 1W silicon zener diode from the industry-standard 1N4728A through 1N4758A series. It provides stable voltage reference and regulation with \u00b15% tolerance, 7 \u03a9 maximum zener impedance at 49 mA test current, and 10 \u00b5A maximum reverse leakage. The DO-41 axial lead through-hole package enables easy assembly with power dissipation up to 1W at lead temperatures below 50\u00b0C. The device is suitable for voltage regulation, overvoltage protection, and general-purpose voltage stabilization in power supply and signal conditioning circuits.","working_principle":"The 1N4733ATR operates in reverse breakdown mode, where the PN junction is designed to conduct current in the reverse direction when the voltage exceeds the zener breakdown voltage (5.1V nominal). In the breakdown region, the voltage across the diode remains relatively constant despite changes in current, making it suitable for voltage regulation. The zener impedance (7 \u03a9 max) characterizes the slope of the V-I curve in the breakdown region \u2014 lower impedance means better regulation. The temperature coefficient of approximately +0.02%\/\u00b0C near 5.1V means the breakdown voltage increases slightly with temperature. Power dissipation is limited to 1W at lead temperatures below 50\u00b0C, derating at 6.67 mW\/\u00b0C above that. The surge current rating of 890 mA accommodates transient overloads.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>\n
      Anode<\/td>Anode<\/td>Passive<\/td>P-type region (unmarked end)<\/td><\/tr>\n
      Cathode<\/td>Cathode<\/td>Passive<\/td>N-type region (band-marked end)<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • Voltage Regulation:<\/strong> 5.1V reference for bias networks and low-power regulator circuits with \u00b15% tolerance<\/li>\n
      • Overvoltage Protection:<\/strong> Clamping transient voltages to 5.1V to protect downstream circuitry<\/li>\n
      • Power Supply Referencing:<\/strong> Stable reference voltage for comparator and error amplifier circuits<\/li>\n
      • Signal Clipping:<\/strong> Limiting signal amplitudes to \u00b15.1V in audio and instrumentation circuits<\/li>\n
      • Automotive Protection:<\/strong> AEC-Q101 qualified version available for in-vehicle ECU input protection<\/li>\n<\/ul>","alternative_models":"\n
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>\n
        1N4733A<\/td>onsemi<\/td>Same spec, bulk\/bag packaging<\/td><\/tr>\n
        BZX55C5V1<\/td>Nexperia<\/td>500mW, DO-35, 5.1V<\/td><\/tr>\n
        BZX85C5V1<\/td>Nexperia<\/td>1.3W, DO-41, 5.1V<\/td><\/tr>\n
        1N5338B<\/td>onsemi<\/td>5W, 5.1V, larger package<\/td><\/tr>\n
        MMSZ5231B<\/td>onsemi<\/td>500mW, SOD-123, 5.1V SMD<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/7796","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=7796"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/7796\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=7796"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=7796"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=7796"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=7796"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}