68k ohm Resistor
The 68kΩ (68,000 Ohm) Resistor is a precision 1/4W metal film resistor with a tight 1% tolerance, ideal for DIY electronics, Arduino projects, and prototyping. This standard resistor value is widely used in RC timing circuits, voltage dividers, transistor biasing, and op-amp feedback networks. With excellent stability, low noise, and reliable long-term performance, it's a fundamental component for hobbyists, students, and engineers building circuits on breadboards, perfboards, or custom PCBs.
المقاومة 68 كيلو أوم (68,000 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 القيمة القياسية بشكل واسع في دوائر التوقيت RC، ومقسّمات الجهد، وتحييز الترانزستور، وشبكات التغذية الراجعة لمضخمات الإشارة. تتميز بثبات ممتاز وضوضاء منخفضة وأداء موثوق طويل الأمد، وهي مكوّن أساسي للهواة والطلاب والمهندسين عند بناء الدوائر على لوحات التجارب أو ثنائيات الفينول النحاسية.
The 68kΩ Resistor is a high-quality 1/4 Watt metal film resistor engineered to deliver accurate and stable resistance in a wide variety 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 sensitive electronic designs.
The 68 kilo-ohm (68kΩ) value is a standard E96-series resistor commonly used in RC timing networks with 555 timer ICs, voltage dividers, transistor base biasing, and op-amp feedback circuits. It's a popular choice for medium-impedance applications that require moderate current limiting while maintaining minimal load on signal sources. It's also widely used in audio circuits, sensor scaling networks, and pull-up resistors for low-current digital lines.
Manufactured 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: 68 kΩ (68,000 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 — delay generation with 555 timer ICs and capacitors
- Voltage Dividers — generating reference voltages and scaling analog signals
- Transistor Base Biasing — driving BJTs in switching and amplifier circuits
- Op-Amp Feedback Networks — gain configurations in inverting/non-inverting amps
- FET / JFET Biasing — medium-impedance input stages
- Pull-up / Pull-down Resistors — for 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 and signal scaling for analog 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