Resistor Tolerance Calculator

October 11, 2024 Post a Comment

Resistor tolerance calculator

For example: A 220 Ω resistor has a silver tolerance band. Tolerance = value of resistor x value of tolerance band = 220 Ω x 10% = 22 Ω

How do you calculate tolerance?

Tolerance = (Measured Value - Expected Value)/Expected Value. In the above case the Tolerance is (75.1-75.0) / 75 = 0.13%. Tolerance is measurement of accuracy.

How do you find the maximum and minimum tolerance of a resistor?

First find the “nominal resistance,” or 470K in this case. 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 is the tolerance of a 10 ohm resistor?

10 Ohm 0.25W Carbon Film Resistor (CFR) with ±5% Tolerance. 10 Ohm Resistor Color Code: Brown, Black, Black, Golden. Resistance: 10 Ohm, Power Rating: 0.25 Watt, Approximate Maximum Current: 158mA .

What does a tolerance of 10% mean?

When specified by percentage value, this percentage means the amount by which a resistor may vary from its nominal value. For example, a resistor which has a tolerance of 10% may vary 10% from its nominal value.

What is the tolerance of a 3 band resistor?

The values of 3-band resistors have a tolerance of ±20% and are commonly used by hobbyists or when the resistance value is not critical. For a 1R0 (1 Ω) resistor with 3 bands, the colors will be brown, black and gold. The resistance value will fall between 1.2 Ω and 0.8 Ω.

What is the tolerance of a resistor?

Resistor tolerance is the deviation from the nominal value. It is expressed as a ±%, measured at 25°C with no load applied. Some resistor designs have extremely tight tolerances. For example, precision wirewound resistors are made with tolerances as tight as ±0.005%.

What is the percentage of tolerance?

Percent of Tolerance is calculated by taking the measurement error of interest, such as repeatability and/or reproducibility, dividing by the total tolerance range, then multiplying the result by 100 to express the result as a percentage.

Why do resistors have tolerance?

Resistor Manufacturing Variance These variances effect how much resistance they actually have, which can vary up to a certain amount from their stated resistance. For this reason, resistors have a tolerance rating which represents the percent error that the actual resistance can deviate from the stated resistance.

What is the minimum resistance of 100 ohms resistor with 10 tolerance?

10% tolerance means that the resistance can be more or less 10 ohms to compare with 100. A 100 ohms resistor with 10% tolerance may have values ranging from 90 ohms to 110 ohms.

What is maximum tolerance?

(c) "Maximum tolerance" means the highest degree of restraint that the. military, police and other peace keeping authorities shall observe during a. public assembly or in the dispersal of the same.

Which tolerance rating would a low quality resistor have?

Typical resistor tolerances for film resistors range from 1% to 10% while carbon resistors have tolerances up to 20%. Resistors with tolerances lower than 2% are called precision resistors with the or lower tolerance resistors being more expensive.

What color is 5% in the tolerance of resistor?

The gold band means that the resistor has a tolerance of 5%. The resistance value lies therefore between 5320 and 5880 Ω (5560 ± 5%).

Why do we use 10K resistor?

Commonly used in breadboards and perf boards, these 10K resistors make excellent pull-ups, pull-downs, and current limiters. To determine the value of a given resistor look for the gold or silver tolerance band and rotate the resistor as in the photo on the left.

What color is a 470 ohm resistor?

470 Ohm 1W High Quality Carbon Film Resistor (CFR) with ±5% Tolerance and Tin Plated Copper Leads. 470 Ohm Resistor Color Code: Yellow, Violet, Brown, Golden.

What does 1% on a resistor mean?

Two reasons to use a 1% resistor 1. Accuracy, resistance value is within +/- 1% of what you want 2. More values available, With 1% resistors you have more nominal values to work with. With 5% and 10% resistors the catalog of values is a smaller number. The 1% resistor values go in smaller steps.

What are the 5 types of resistors?

Types Of Resistors

Thermistors.
Varistor Resistors.
Photo Resistor or LDR (Light Dependent Resistors)
Surface Mount Resistors.

Does tolerance matter for resistors?

The tolerance of the resistor is an important parameter of the resistor, which tells us about the amount by which the resistance of the resistor may vary from its specified value during the operation.

What colour is a 1.2 Kω resistor with 5% tolerance?

Resistance		1.2K ohm
Tolerance		5%
Color Code		Brown / Red / Red / Gold
Type		Carbon Film
Voltage	Maximum Operating	350V

What size resistor do I need?

We'll use the following formula to determine the resistor value: Resistor = (Battery Voltage – LED voltage) / desired LED current. For a typical white LED that requires 10mA, powered by 12V the values are: (12-3.4)/. 010=860 ohms.