What are the parameter ranges of thin film precision surface mount resistors?

The accuracy of thin film precision chip resistors is usually very high. The following is a detailed summary of their accuracy:

1、 High precision range
The accuracy of thin film precision chip resistors can reach 0.01% or even higher. This means that the error in its resistance value is very small, making it suitable for applications that require extremely high precision in resistance values.
2、 Temperature drift parameters
In addition to accuracy, the temperature coefficient (TCR) of thin film precision chip resistors is also very low, reaching 1ppm/℃ or lower. TCR is an indicator that measures the change in resistance value with temperature, and a low TCR means a higher stability of resistance value at different temperatures.
3、 Specific product examples
AR series thin film precision surface mount resistors: resistance tolerance as low as ± 0.01% (automotive grade products ± 0.05%), TCR as low as ± 1ppm/℃, resistance range 1 Ω~3M Ω.
TAR series resistors: made of tantalum nitride material, with a minimum resistance tolerance of ± 0.05% and a minimum TCR of ± 10ppm/℃.
CSR/CSRA series MELF resistors: The lowest resistance tolerance can reach ± 0.1%, and the TCR is as low as ± 5ppm/℃.
4、 Application Fields
Thin film precision surface mount resistors are widely used in medical equipment, measuring instruments, industrial automation, automotive electronics, and other fields due to their high precision and low TCR. These fields have extremely high requirements for the accuracy and stability of resistors, and thin film precision surface mount resistors can meet these needs.
In summary, the precision of thin film precision chip resistors is usually very high, and the temperature coefficient is low, making them suitable for various high-precision and stable application scenarios. In practical applications, suitable thin film precision chip resistor products should be selected according to specific needs.