47k ohm Resistor
The 47kΩ (47,000 Ohm) Resistor is a precision 1/4W metal film resistor with a tight 1% tolerance, ideal for DIY electronics, Arduino projects, and prototyping. This commonly used resistor value is perfect for pull-up/pull-down circuits, RC timing networks, op-amp feedback, transistor biasing, and high-impedance voltage dividers. With excellent stability, low noise, and reliable long-term performance, it's a fundamental component for hobbyists, students, and engineers in any electronic build.
المقاومة 47 كيلو أوم (47,000 أوم) هي مقاومة دقيقة من نوع Metal Film بقدرة 1/4 واط وتفاوت 1%، مثالية لـ مشاريع الإلكترونيات DIY ومشاريع Arduino والنماذج الأولية. تُعدّ هذه القيمة من القيم الشائعة الاستخدام في دوائر Pull-up و Pull-down، ودوائر التوقيت RC، وشبكات التغذية الراجعة لمضخمات الإشارة، وتحييز الترانزستور، ومقسّمات الجهد عالية الممانعة. تتميز بثبات ممتاز وضوضاء منخفضة وأداء موثوق طويل الأمد، وهي مكوّن أساسي للهواة والطلاب والمهندسين.
The 47kΩ 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 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 47 kilo-ohm (47kΩ) value is one of the most popular and frequently used resistor values in electronics. It is widely used as a pull-up or pull-down resistor for high-impedance digital inputs, in RC timing networks with 555 timer ICs, as a gate pull-down resistor for MOSFETs, in op-amp feedback paths, and in high-value voltage dividers for analog signal scaling. It's also a popular choice for transistor base biasing in low-current switching circuits and for interfacing with high-impedance sensors.
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: 47 kΩ (47,000 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
- Pull-up & Pull-down Resistors — stabilizing digital input pins on microcontrollers
- RC Timing Circuits — delay generation with 555 timer ICs and capacitors
- MOSFET Gate Pull-down — keeping gates at known states
- Op-Amp Feedback Networks — gain configurations in amplifier circuits
- High-Impedance Voltage Dividers — battery monitoring and analog signal scaling
- Transistor Base Biasing — low-current switching applications
- FET / JFET Biasing — high-impedance input stages
- Filter Networks — passive RC low-pass and high-pass filters
- Oscillator Circuits — low-frequency oscillators and signal generators
- Sensor Interfacing — 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