The MMBZ5230BLT1G is an onsemi 4.7V Zener diode voltage regulator in a SOT-23 package. It features 225mW power dissipation, 5% tolerance, 19 ohm max impedance, and AEC-Q101 qualification for automotive applications. The BLT1G suffix indicates Pb-free, halogen-free tape-and-reel packaging.<\/p>\n
| Zener Voltage<\/td>\n | 4.7 V (nominal)<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||
| Tolerance<\/td>\n | +\/-5%<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||
| \u062a\u0628\u062f\u064a\u062f \u0627\u0644\u0637\u0627\u0642\u0629<\/td>\n | 225 mW<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||
| Zener Impedance<\/td>\n | 19 ohm (max at 20mA)<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||
| Leakage Current<\/td>\n | 5 uA at 2V<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||
| ESD Rating<\/td>\n | Class 3 (>16kV HBM)<\/td>\n<\/tr>\n<\/table>\n\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n\u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\nProduct Overview The MMBZ5230BLT1G is an onsemi 4.7V Zener diode voltage regulator in a SOT-23 package. It features 225mW power dissipation, 5% tolerance, 19 ohm max impedance, and AEC-Q101 qualification for automotive applications. The BLT1G suffix indicates Pb-free, halogen-free tape-and-reel packaging. Key Specifications Zener Voltage 4.7 V (nominal) Tolerance +\/-5% Power Dissipation 225 mW Zener […]<\/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":[13,56],"tags":[],"chip_brand":[144],"class_list":["post-8793","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-mosfets","chip_brand-on"],"acf":{"brief_explanation":"4.7V Zener diode, 225mW, 5%, AEC-Q101, SOT-23-3","date_code":"","package_case":"SOT-23-3 (2.92 x 1.30 x 0.95 mm)","in_stock":162000,"datasheet":"https:\/\/www.onsemi.com\/download\/data-sheet\/pdf\/mmbz5221blt1-d.pdf","price":"$0.013 @ 3ku","product_introduction":"The MMBZ5230BLT1G is an onsemi 4.7V Zener diode voltage regulator in the compact SOT-23-3 surface-mount package. The 225mW power dissipation rating on FR-4 PCB and 4.7V nominal Zener voltage make it suitable for voltage regulation and reference in low-power circuits. The +\/-5% tolerance provides adequate precision for bias and reference applications. The AEC-Q101 qualification and SZ prefix option support automotive applications requiring unique site and control change requirements. The device features Class 3 ESD protection (>16kV HBM) and is Pb-free, halogen-free, and BFR-free. The 19 ohm maximum Zener impedance at 20mA ensures stable voltage regulation under varying load conditions. The SOT-23-3 package is optimized for automated board assembly in high-density applications.","working_principle":"The MMBZ5230BLT1G operates as a Zener diode in reverse breakdown. When the reverse voltage across the diode exceeds the Zener breakdown voltage (4.7V), the diode conducts in the reverse direction, maintaining a nearly constant voltage across its terminals regardless of current variations (within the impedance specification). The Zener impedance of 19 ohms at 20mA represents the slope of the V-I curve at the operating point; lower impedance means better voltage regulation. The device can be used in the simplest shunt regulator configuration: a series resistor from the input supply to the Zener cathode, with the anode grounded. The Zener maintains the output at 4.7V as long as the input voltage exceeds 4.7V plus the voltage drop across the series resistor.","pin_description":"
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