3.3k Ohm Resistor 1/4w

The 3.3k? Resistor is a high-quality 1/4 Watt metal film resistor engineered to deliver accurate and stable resistance in a wide range of electronic circuits. With a precise 1% tolerance , it ensures consistent and predictable performance in both analog and digital applications. Metal film resistors are preferred over carbon film types because they offer lower noise , superior thermal stability , and higher long-term accuracy , making them well-suited for precision and signal-related circuits. The 3.3 kilo-ohm (3.3k?) value is a standard E96-series resistor commonly used in pull-up and pull-down configurations , voltage dividers , and logic-level shifting circuits . It's also a popular choice for base resistors in BJT transistor switches when driven from microcontroller pins, and frequently used in 3.3V digital systems like ESP32, ESP8266, and STM32 boards. Beyond these, it's a versatile component in audio circuits, sensor biasing, and signal conditioning networks. Designed in a standard axial-lead through-hole package , this resistor integrates easily with breadboards, perfboards, and printed circuit boards (PCBs) , making it ideal for both rapid prototyping and permanent installations . It is fully compatible with all popular development platforms, including Arduino, Raspberry Pi, ESP32, ESP8266, STM32, and PIC microcontrollers . Specifications Resistance Value: 3.3 k? (3300 Ohm) Power Rating: 1/4 Watt (0.25W) Tolerance: ±1% (Precision Grade) Resistor Type: Metal Film Mounting Style: Through-Hole (Axial Lead) Lead Material: Tinned Copper Compliance: RoHS Compliant Operating Temperature Range: Typically -55°C to +155°C (standard for metal film) Applications Pull-up & Pull-down Resistors — stabilizing digital input pins on microcontrollers 3.3V Logic Systems — popular value for ESP32, ESP8266, and STM32 designs Voltage Dividers — generating reference voltages and scaling analog signals Transistor Base Biasing — driving BJTs in switching and amplifier circuits MOSFET Gate Pull-down — keeping gates at known states Logic Level Conversion — combined with other resistors for safe interfacing Signal Conditioning — filtering and impedance matching Sensor Interfacing — calibration and biasing for analog and digital sensors Arduino & Microcontroller Projects — prototyping and learning kits Audio & RF Circuits — gain setting and feedback networks Educational Electronics — schools, universities, and STEM labs General-Purpose Electronics — repair, modification, and DIY builds