Description
121 Ohm 0.5W 5% Metal Film Resistor (MFR)
The 121 Ohm 0.5W 5% Metal Film Resistor (MFR) is designed for reliable performance in general-purpose and high-precision electronic circuits. Featuring metal film technology, this resistor provides exceptional thermal stability, low noise operational characteristics, and consistent resistance accuracy across various operating conditions. Its miniature axial through-hole design makes it a versatile choice for compact PCB assemblies, power management modules, and commercial electronic applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Resistance Value | 121 Ω |
| Tolerance | ±5% |
| Power Rating | 0.5W (1/2W) |
| Technology | Metal Film (MFR) |
| Package / Size | Axial (Through-Hole) |
Key Performance Advantages
- High-quality metal film construction offers low current noise and superior linear response
- 0.5W power handling capacity suitable for a wide range of electronic workloads
- Axial leaded through-hole package simplifies breadboarding, prototyping, and PCB assembly
- Protective insulated coating guards against mechanical damage, moisture, and environmental stress
- Stable resistance performance across varied temperature ranges
Typical Applications
- Current limiting and voltage division in power supply circuits
- Signal processing and conditioning circuits
- Consumer electronics and commercial equipment repairs
- Prototyping, educational kits, and DIY electronic projects





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