Voltage Regulator 3.3 V - 78R33
25 EGP · In stock
### Overview Need a stable 3.3V supply for your project? The 78R33 is a fixed positive voltage regulator that delivers a clean, regulated 3.3V output with up to 1A of current. It's an essential component for powering 3.3V logic, sensors, and modules from a higher voltage source like a 5V or 9V supply. This TO-220 package regulator is easy to use with minimal external components, making it a reliable choice for both hobbyists and professionals. ### Key Features - **Fixed 3.3V output** – No need for external resistor dividers. - **1A output current** – Enough for most microcontrollers and sensors. - **Low dropout voltage** – Regulates even when input is close to 3.3V. - **Built-in thermal and short-circuit protection** – Safeguards your circuit. - **Standard TO-220 package** – Easy to mount on a heatsink for high-current applications. ### Technical Specifications - **Output Voltage:** 3.3V (fixed) - **Output Current:** Up to 1A - **Dropout Voltage:** Typically 1V (depending on load) - **Input Voltage Range:** 4.5V to 12V (typical) - **Package:** TO-220 - **Operating Temperature:** 0°C to 125°C ### Applications & Use Cases - Powering 3.3V microcontrollers like ESP8266, ESP32, and STM32. - Supplying 3.3V to sensors, ADCs, and logic level converters. - Regulating voltage for breadboard projects and custom PCBs. - Providing a stable reference for analog circuits. - Suitable for robotics, IoT, and embedded systems. ### What's Included - 1x Voltage Regulator 3.3V (78R33) ### Compatibility - Works with any power source providing 4.5V to 12V DC. - Compatible with common prototyping boards and perfboards. - Pair with capacitors (10µF input, 10µF output) for best stability. ### MOKWN Recommendation This regulator is a must-have for any maker's toolbox. Its simplicity and reliability make it perfect for powering your 3.3V projects. If you need higher current, consider our 3.3V 5A buck converter. For most Arduino and ESP projects, this 78R33 is the go-to choice.