Contents
- 1 How do you find the maximum value of a resistor?
- 2 What are the ratings of a resistor?
- 3 What is the maximum resistance of a 1000 Ω resistor with 10 Tolerance?
- 4 What is the power rating of a resistor?
- 5 What should the temperature of a resistor be?
- 6 What happens when the power of a resistor exceeds the wattage?
How do you find the maximum value of a resistor?
Take the nominal value and multiply it by 1 + your tolerance, which is (1+0.1). Then take the nominal value and multiply it by 1 – tolerance, or (1-0.1). The highest possible value is 517 K.
What are the ratings of a resistor?
The Resistor Power Rating is sometimes called the Resistors Wattage Rating and is defined as the amount of heat that a resistive element can dissipate for an indefinite period of time without degrading its performance….The Resistor Power Triangle.
| Type | Power Rating | Stability |
|---|---|---|
| Wirewound | High up to 500 Watts | High 1% |
What is the maximum tolerance of the resistor?
Resistance tolerance shows the maximum allowable difference from the nominal resistance value. Most of the resistors Bourns offers are ±1 % and ±5 % tolerance. Precision thin film resistors have a very low tolerance down to ±0.01 %.
What is the maximum resistance of a 1000 Ω resistor with 10 Tolerance?
Answer : A resistor with the color coded value of 1000 ohms and ± 10% tolerance can have an actual resistance between 900 ohm and 1100 ohm.
What is the power rating of a resistor?
The power rating of a Resistor is usually ranges between 1/8 W (0.125W) and 1 W. Resistors with power ratings of more than 1 W are usually referred to as power Resistors, and are used specifically for their power dissipating abilities. For a given circuit 12 V voltage and 50 milliamperes has been passed,what is the maximum power rating?
Is there a maximum voltage for a resistor?
When you dig into the data sheet on the resistors you are using you will find a maximum hold off voltage, and you have to watch those Dale power resistors while they can hold off quite a bit of voltage between terminals the breakdown voltage to the metal housing is lower.
What should the temperature of a resistor be?
Typically resistors are rated for a temperature of 70°C, above this resistor starts to derate. This means that above this temperature the resistor can only utilize a reduced power level. This is illustrated by a derating curve.
What happens when the power of a resistor exceeds the wattage?
If the power does not exceed the wattage of the resistor, then there is no degradation in the performance of the resistor. But if the power supplied to the resistor exceeds its maximum power rating then it will melt the resistor and go up in smoke and thus damages the circuit.