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What is high precision resistor?
A Precision resistor is a resistor that has a very low tolerance value, so it is very precise (closely near its nominal value). All resistors come with a tolerance value, which is given as a percentage. The tolerance value tells us how close to the nominal value a resistance can vary.
What does a precision resistor do?
Riedon’s precision resistors are designed for critical applications that require very accurate and stable resistance values. Precision resistors are normally specified when the wattage requirements are relatively low, and when high accuracy and stability are necessary.
What’s the difference between precision and precision resistors?
Some current sense resistors also has two more terminals to be able to measure the voltage over the resistor even more accurately. These usually connects directly at the middle of the resistor. Normal resistor, precision resistor, and current sensing resistor, they are all resistors, but they are all different.
What’s the difference between low value and high value resistors?
This keeps the voltage drop due to current in the leads off the measurement. There is no absolute difference between the two. Current sense resistors are generally low-value, high-power resistors. They are intended to develop a small voltage for a given current, so they are low in value.
When does a resistor become a burden resistor?
An ordinary resistor becomes a burden resistor at the moment you connect it as a burden to something else, e.g. to the output side (secondary) of a current sensing transformer. I have mostly read the term in the context of current sensing devices, like current transformers or current sensing modules.
What’s the temperature tolerance of a precision resistor?
For example, the temperature tolerance of ordinary resistors is 1% – 5%, while the tolerance of precision resistors is only 0.1% or less.