100 ohm Resistor
The 100Ω (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 LED current limiting, MOSFET gate resistors, signal termination, and impedance matching. 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 100 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 تيار الـ LED، ومقاومات بوابة MOSFET، وإنهاء الإشارات، ومطابقة الممانعة. 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 100Ω 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 sensitive electronic designs.
The 100 ohm value is a standard E96-series resistor widely used for LED current limiting when driving LEDs from low-voltage supplies (such as 3.3V systems), MOSFET and IGBT gate resistors to control switching speed and reduce ringing, series termination resistors for high-speed digital signals, and impedance matching in transmission lines. It is also commonly used in transistor emitter biasing, inrush current limiting, and damping resistors in audio and RF circuits.
Manufactured in a standard axial-lead through-hole package, this resistor integrates easily with breadboards, perfboards, and printed circuit boards (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: 100 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
- LED Current Limiting — driving LEDs from 3.3V supplies (ESP32, STM32)
- MOSFET / IGBT Gate Resistors — controlling switching speed and reducing ringing
- Series Termination — for high-speed digital signal integrity
- Impedance Matching — for transmission lines and RF circuits
- Damping Resistors — in audio and RF circuits to prevent oscillation
- Current Limiting — small inrush protection in low-power circuits
- Transistor Emitter Resistors — biasing in amplifier stages
- Voltage Dividers — used in low-impedance dividers
- Pull-up / Pull-down Resistors — for high-current digital lines
- 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