Precision resistors refer to resistors whose tolerance, TCR, load life, long-term stability and other parameters meet higher standards under the same resistor production technology and installation. Long-term stability is a very important index because tight tolerance is meaningless if excluding stability. The precision resistors mainly apply thin film and foil technology. Among them, the electrical performance of foil resistor is more excellent, and it can achieve almost zero TCR and 0.001% tolerance. In addition, for high-voltage and high-resistance applications, it is very difficult to maintain absolute high tolerance and low TCR. Usually, thick film and wirewound technology are adopted, and good tolerance and stability can be achieved after special process treatment.
Excellent Long-Term Stability