680k ohm Resistor
The 680kΩ (680,000 Ohm) Resistor is a precision 1/4W metal film resistor with a tight 1% tolerance, ideal for DIY electronics, Arduino projects, and prototyping. This high-value resistor is commonly used in high-impedance voltage dividers, RC timing circuits, op-amp feedback networks, and biasing high-impedance inputs. With excellent stability, low noise, and reliable long-term performance, it's an essential component for hobbyists, students, and engineers in any electronic build.
المقاومة 680 كيلو أوم (680,000 أوم) هي مقاومة دقيقة من نوع Metal Film بقدرة 1/4 واط وتفاوت 1%، مثالية لـ مشاريع الإلكترونيات DIY ومشاريع Arduino والنماذج الأولية. تُستخدم هذه المقاومة عالية القيمة بشكل شائع في مقسّمات الجهد عالية الممانعة، ودوائر التوقيت RC، وشبكات التغذية الراجعة لمضخمات الإشارة، وتحييز المداخل عالية الممانعة. تتميز بثبات ممتاز وضوضاء منخفضة وأداء موثوق طويل الأمد، وهي مكوّن أساسي للهواة والطلاب والمهندسين.
The 680kΩ 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 (680kΩ) 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 kΩ (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