What Is a Precision Resistor?

A precision resistor is a device that has a value that is 1 percent of the nominal value. Different manufacturers set the percentage difference. A good spec sheet will have a graph specifying the fall-off. A 500-ohm resistor, for example, is guaranteed to have an actual resistance of 495 to 505 ohms when operating under ideal conditions. But real-world designs require more accuracy than that.

A precision resistor is designed to divide a stable voltage reference. A 30 ppm/degC voltage reference would not be divided by a 200 ppm/degC resistor. The stability of the input voltage is more important than the resistance value change, which is why the R 2 and R 3 must be of comparable temperature stability. The difference in temperature stability is a critical feature for a resistor, as it can affect the device's performance.

A precision resistor can be characterized by low TCR and PCR. In high-precision applications, the PCR and TCR are less than five ppm. Its load-life stability is more than 2000 hours at 70 degrees Celsius. The smallest precision resistors have a thermal EMF of 0.05 mV/degC. Regardless of the resistor's form factor, it is important to know that these devices are highly precise.

A precision resistor's TCCR and PCR are two other important factors that make it a good choice for high-end applications. A TCR of more than ten times the expected TCR value is considered acceptable. This TCR is a major consideration for a wide range of applications. However, you must always make sure that you know the intended use for the component before purchasing. Then, you can specify the correct size, voltage, and other specifications for the best performance.

For a high-end application, a precision resistor must have high-end properties. Excess noise and unwanted inductance are potential problems with any component that uses electricity. Hence, a high power resistors  must have excellent performance characteristics. The RC-RC-TCR ICs should be rated for their RC values. The TC-RCR should be tested for its RF performance.

The resistance value of a precision resistor can be measured in parts per million. Usually, it is used for measuring the resistance of a particular product or a material. The RC-RC-RCR is a common type of TC-RCR. It is also known as a TC-RCR. Its RC-RCR is one of the most common types of TC-RCR.

The RC-RCR is a temperature-dependent parameter. It can be used to monitor the resistance of a certain device. Its accuracy is also determined by the TCR of a precision resistor. When the resistor is rated at a high temperature, it will work in the same way as a lower-voltage component. If it's low-voltage, it is the most suitable option. The RC-RC is usually higher-temperature-resistant. If you want to know more about this topic, then click here: https://simple.wikipedia.org/wiki/Resistor.

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