680k Ohm Resistor 1/4w

The 680k? Resistor is a high-quality 1/4 Watt metal film resistor designed to deliver accurate and stable resistance in a wide variety of electronic circuits. With a precise 1% tolerance , it ensures consistent and predictable performance for 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 especially well-suited for high-impedance and precision circuits . The 680 kilo-ohm (680k?) value is a standard E96-series resistor commonly used where high resistance and low current draw are required. Typical uses include RC timing circuits with capacitors for long delays in 555 timer ICs , biasing networks for FET and JFET amplifiers , feedback paths in op-amp circuits , and input dividers in high-voltage measurement systems (such as battery monitoring on Arduino analog inputs). It's also used in low-power oscillators and filter networks that require high impedance. Manufactured in a standard axial-lead through-hole package , this resistor easily integrates 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: 680 k? (680,000 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 RC Timing Circuits — long delay generation with 555 timer ICs and capacitors High-Impedance Voltage Dividers — battery monitoring and high-voltage scaling Op-Amp Feedback Networks — high-gain amplifier configurations FET / JFET Biasing — high-impedance input stages Pull-up / Pull-down Resistors — for very low-current digital lines Filter Networks — passive RC low-pass and high-pass filters Oscillator Circuits — low-frequency oscillators and signal generators Sensor Interfacing — biasing high-impedance sensors and probes Arduino & Microcontroller Projects — prototyping and learning kits Audio Circuits — input bias resistors for high-impedance preamps Educational Electronics — schools, universities, and STEM labs General-Purpose Electronics — repair, modification, and DIY builds