5.1k ohm Resistor
The 5.1kΩ (5100 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 USB-C CC line termination, pull-up/pull-down circuits, voltage dividers, and transistor biasing. 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 5.1 كيلو أوم (5100 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 إنهاء خطوط CC لمنفذ USB-C، ودوائر Pull-up و Pull-down، ومقسّمات الجهد، وتحييز الترانزستور. 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 5.1kΩ 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 5.1 kilo-ohm (5.1kΩ) value is a standard E96-series resistor with several important uses in modern electronics. It is the official pull-down value for USB-C CC (Configuration Channel) lines, used to identify a device as a USB-C sink (power consumer) — making it essential for DIY USB-C power delivery projects. It is also commonly used in voltage dividers, transistor biasing, op-amp feedback networks, and pull-up/pull-down configurations in microcontroller-based circuits.
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: 5.1 kΩ (5100 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
- USB-C CC Line Termination — pull-down resistor for USB-C sink devices
- Pull-up / Pull-down Resistors — stabilizing digital input pins
- 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 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
- Arduino & Microcontroller Projects — prototyping and learning kits
- Sensor Interfacing — calibration and biasing for analog sensors
- Audio & RF Circuits — gain setting and feedback networks
- Educational Electronics — schools, universities, and STEM labs
- General-Purpose Electronics — repair, modification, and DIY builds