Shunts are available in metal film and full metal versions.

Pros: Significantly cheaper

Cons: They have lower temperature coefficient performance than all-metal shunts

Contrast: The current measurements are slightly distorted by the nature of the structure, which is why they are only options when the inductance is not a factor. Using metal film resistors (shunts), assembled to a ceramic substrate using glue and trimmed to the desired value using laser trimming, this creates a non-uniform structure that creates series in addition to the existing parasitic inductance. Therefore, Ohm's law in its basic form no longer applies, which distorts the results of the current measurement. In this case, the formula for the voltage drop at the shunt is U = I x R - L(di/dt).

Disadvantages: All-metal shunts are much more expensive than metal thin-film shunts.

Advantages: All-metal shunts provide consistent, distortion-free measurements. Since they are made of homogeneous resistor material, there is no additional inductance, making them ideal for high-precision applications such as medical engineering or precision measurement equipment.

They have high measurement accuracy and thermal shock resistance.

They can operate at up to 7W at up to 275°C.

They are available in a variety of design shapes, including a much larger form factor than standard chip resistors, temperature coefficients well below 100ppm/K, and very low resistance values ​​(measured in single-digit milliohms).