47 ohm Resistor
The 47Ω (Ohm) Resistor is a precision 1/4W metal film resistor with a tight 1% tolerance, ideal for DIY electronics, Arduino projects, and prototyping. This low-value resistor is commonly used for current limiting, MOSFET gate resistors, signal termination, and impedance matching in electronic circuits. With excellent stability, low noise, and reliable long-term performance, it's an essential component for hobbyists, students, and engineers building circuits on breadboards, perfboards, or custom PCBs.
المقاومة 47 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 منخفضة القيمة بشكل شائع في تحديد التيار، ومقاومات بوابة MOSFET، وإنهاء الإشارات، ومطابقة الممانعة في الدوائر الإلكترونية. 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 47Ω 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 reliable 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 ideal for precision and signal-related circuits.
The 47 ohm value is a low-resistance, standard E96-series resistor commonly used as a MOSFET or IGBT gate resistor to control switching speed and reduce ringing, as a series termination resistor for high-speed digital signals, and as a current sense or current limiting resistor in power circuits. It is also frequently used in inrush current limiting for small loads and as a damping resistor in audio and RF designs.
Manufactured in a standard axial-lead through-hole package, this resistor integrates easily with breadboards, perfboards, and PCBs, making it suitable 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 Ohm (Ω)
- 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
- MOSFET / IGBT Gate Resistors — controlling switching speed and reducing ringing
- Series Termination — for high-speed digital signal integrity
- Current Limiting — small inrush protection in low-power circuits
- Damping Resistors — in audio and RF circuits to prevent oscillation
- Impedance Matching — for transmission lines and signal interfaces
- Voltage Dividers — used in low-impedance dividers
- Pull-up / Pull-down Resistors — for high-current digital lines
- Transistor Emitter Resistors — biasing in amplifier stages
- Arduino & Microcontroller Projects — prototyping and learning kits
- Audio & RF Circuits — feedback networks and filtering
- Educational Electronics — schools, universities, and STEM workshops
- General-Purpose Electronics — repair, modification, and DIY builds