{"product_id":"mmsz5226bt1g-3-3v-surface-mount-zener-diode-500mw-sod-123","title":"MMSZ5226BT1G 3.3V Surface Mount Zener Diode (500mW, SOD-123)","description":"\u003cp\u003eProtect your fragile 3.3V microcontrollers from accidental overvoltage with the \u003cb\u003eMMSZ5226BT1G\u003c\/b\u003e surface-mount Zener diode. Modern logic boards, such as the Raspberry Pi, ESP32, and STM32, operate strictly on 3.3V logic. If you accidentally connect a legacy 5V sensor, UART adapter, or relay module to these pins, the 5V signal can permanently destroy the processor. By placing this 3.3V Zener diode between the input pin and ground, it acts as an ultra-fast voltage clamp, safely dumping any excess voltage above 3.3V to ground and saving your expensive hardware.\u003c\/p\u003e\n\u003cp\u003eBeyond logic-level protection, this diode is an excellent precision voltage reference for Analog-to-Digital Converters (ADCs) and custom low-power regulator circuits. Capable of dissipating up to 500mW of power, it is incredibly robust for its size. Housed in the industry-standard SOD-123 surface-mount package, it requires virtually zero PCB space, making it a mandatory safety component for any maker designing compact IoT sensors, drone flight controllers, or mixed-voltage DIY electronics.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eLogic Level Clamping:\u003c\/b\u003e The absolute best way to protect delicate 3.3V GPIO pins from destructive 5V signals and voltage spikes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePrecision Voltage Reference:\u003c\/b\u003e Provides a stable 3.3V baseline, perfect for biasing analog sensors and comparator circuits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eHigh Power Capacity:\u003c\/b\u003e Safely dissipates up to 500mW (0.5W) of power, offering robust overvoltage clamping in a microscopic form factor.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eSpace-Saving SOD-123:\u003c\/b\u003e The miniature surface-mount package is highly optimized for automated assembly and densely packed custom PCBs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePart Number:\u003c\/b\u003e MMSZ5226BT1G\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDiode Type:\u003c\/b\u003e Zener Diode\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eZener Voltage (Vz):\u003c\/b\u003e 3.3V (Typical)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePower Dissipation (Pd):\u003c\/b\u003e 500mW\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eTolerance:\u003c\/b\u003e ±5%\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePackage Type:\u003c\/b\u003e SOD-123 (SMD\/SMT)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RC-LIFE","offers":[{"title":"Default Title","offer_id":54287809675602,"sku":null,"price":1.0,"currency_code":"PLN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1065\/8067\/2850\/files\/488_425-04_Z_2.webp?v=1786971142","url":"https:\/\/rc-life.com\/pl\/products\/mmsz5226bt1g-3-3v-surface-mount-zener-diode-500mw-sod-123","provider":"rc-life","version":"1.0","type":"link"}