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Thin Film Resistors
- Construction: Thin layer of resistive material on an insulating substrate.
- Precision: High precision with tight tolerance levels (±0.1%).
- Temperature Coefficient: Low TCR, minimal resistance change with temperature.
- Stability: Highly stable over time and under varying conditions.
- Application: Used in high-precision applications like instrumentation and medical devices.
- Cost: More expensive due to high precision and stability.
Fixed Resistors (Carbon Film or Thick Film)
- Construction: Thicker layer of resistive material on a substrate.
- Precision: Moderate precision with wider tolerance levels (±1% to ±5%).
- Temperature Coefficient: Higher TCR, more significant resistance change with temperature.
- Stability: Less stable over time and under environmental stress.
- Application: Suitable for general-purpose use in consumer electronics and automotive electronics.
- Cost: Less expensive than thin film resistors.
Comparison
- Precision and Tolerance: Thin film resistors offer higher precision and tighter tolerances.
- Stability and TCR: Thin film resistors have better stability and lower TCR.
- Cost: Fixed resistors are more cost-effective for non-precision applications.
- Applications: Thin film for precision, fixed resistors for general-purpose use.