Calculate the total series and parallel resistance of a circuit using digikeys parallel and series resistor calculator. The resistor calculator is a simple and easy to use tool which helps in finding out and knowing the basic color code of resistors. My far fetched theory behind the usage of e instead of r when limited to 25 letters, a few signs and numbers would be that an e turned 90 degrees looks like a small omega. Dec 30, 2015 there are three types of resistor color coding. Resistorcapacitor rc circuit calculator electrical. Leds are generally made with the builtin series resistors, which is one of the easiest way to limit and control the flow of the power. Electronics 2000, for electronics hobbyists, engineers and students. Resistor finder finds a combination of two series or parallel connected resistors for a custom value. Of course, you can also provide a color code and the program will show you the resulting resistor value.
Preferred resistor values are also calculated, use the radio buttons on each calculator to select the preferred value series to use. In this software, you have 8 color codes for tolerance level, which include brown, red, green, blue, violet, silver, gold, and grey. Download resistor calculator for leds serial and parallel 2. The calculator is capable of finding suitable standard e12 10% resistor value and power for one led designs. This calculator supports resistors with 3, 4, 5, and 6 bands. This calculator quickly determines 4 or 5 band resistor values and tolerances. Resistorcapacitor rc circuit calculator this rc circuit calculator will calculate the maximum current i max at the beginning of the capacitor charging, the maximum energy e max and maximum charge q max in the capacitor when it is fully charged, for the given voltage across it as well as the time constant.
Just input the indicated values and press the calculate button. Resistor color code and surface mount device smd calculator software. This calculator will help you identify the value, tolerance and temperature coefficient of a color coded resistor by simply selecting the bands colors. The second calculator gives a more accurate value using these figures, which can be found in the suppliers catalogue. This is true for many materials, over a wide range of voltages and currents, and the resistance and conductance of electronic components made from these materials remains constant. Definitions and calculations resistor and resistance. Download resistor color code calculator 4, 5 and 6 band. By using this resistor calculator it is very simple to determine the color code of a resistor based on the resistor value. Led resistor calculator free download windows version. This calculator will help you determine the value of the resistor to add in series with the led to limit the current. Resistors of all types use the e series values, both smd resistors as well as leaded ones.
Resistors can be found in almost all electrical circuits. Resistor calculator software free download resistor calculator top 4 download offers free software downloads for windows, mac, ios and android computers and mobile devices. Led series resistor calculator use this tool to calculate the resistance required to drive one or more series connected leds from a voltage source at a specified current level. If the resistor is 5 colored, leave only the temperature coefficient empty. Resistor color code and smd calculator software electronic. The last two bands that are on 4 and 5 colored resistors are multiplier and tolerance. Download resistor calculator a practical, effective and useful application that helps you to determine the color code of a resistor and calculate resistors for led circuits. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages, bias active elements, and terminate transmission lines, among other uses. The series is also used as the basis for other electronic components including capacitors, and inductors, etc. Resistor calculator free download tucows downloads. The webpage is not working since javascript is not enabled.
Mcu 8051 ide integrated development environment for some microcontrollers based on 8051e. Led series resistor calculator digikey electronics. Calculates the impedance of the resistor and inductor in series. Standard resistor eseries values homemade circuit projects. This series resistor calculator calculates the total resistance value for all the resistors connected in series.
The calculator will not create a solution which uses a single, standard e series. They are used for various purposes, for example, to limit electric current, as a voltage dividers, to provide bias to active circuit elements, to terminate transmission lines, in. This free resistor calculator converts the ohm value and tolerance based on resistor color codes and determines the resistances of resistors in either parallel or series, as well as the resistance of a conductor. Resistor calculator calculate the color code of a resistor based on the resistor value and the other way round.
If you want to compute the total resistance of less than 10 resistors, just insert values of the resistors you have and leave the rest of the fields blank. Led resistor calculator led series resistor calculator. Resistor color code calculator the calculator above will display the value, the tolerance and performs a simple check to verify if the calculated resistance matches one of the eia standard values. For series connection, the current through each resistor is equal.
The calculator program runs on your own computer, so the time it takes to. It consists of the e3, e6, e12, e24, e48, e96 and e192 series, where the number after the e designates the quantity of value steps in each series. Generally, 5% tolerance resistors are available in e24 and 1% resistors in e96, but this is not a hard and fast rule. Resistor calculator is one of the several free software developed by.
If the resistor is 4 colored, leave the 3rd band and temperature coefficient empty. The led calculator will display the resistance value, draw a small schematic and show you the color code of the nearest lower and higher. Resistor calculation for led circuits single, in series, parallel. Calculate resistor size for leds or identify resistors by code or color. One of the most basic series is the e3 series within the range of e series and consists of three values which are namely 4. A list of standard resistance values for eseries is also included in the.
Resistor calculator software free download resistor. Free decoder for color banded and smd resistors, including eseries standard values. This calculation and building of series is done at the interval of every ten years. A resistor is a passive electrical component that creates electrical resistance in electronic circuits. How to calculate the equivalent resistance value for resistors in series. For resistor calculator, enter the colors on the resistor above. An overview of driver circuits for piezo transducer buzzers. Standard resistor values in 1952 the iec international electrotechnical commission decided to define the resistance and tolerance values into a norm, to ease the mass manufacturing of resistors. Resistor value and ratio calculator nightshade electronics. The e series is a system of preferred numbers also called preferred values derived for use in electronic components. A resistor network that is a combination of parallel and series connections can be broken up into smaller parts that are either one or the other.
It can also determine the value of resistor to be added in series with led circuits. These are referred to as preferred values or eseries, and they are published in standard iec 60063. As a bonus, it will also calculate the power consumed by the led. This calculator allows up to 10 different resistor values. A resistor is identified by its pattern of color of bands. Although it is theoretically possible to produce components of any value, in practice the need for inventory simplification has. Led series resistance refers to the usage of resisters to stabilize the led current. You will not have to look for the updates in continuous intervals. Displaying the closest resistor of the e series and renard numbers. This series resistor calculator calculates the total series resistance of a circuit. Selecting resistor parallel or series to obtain a given value, by in3otd. Somewhat you can say that it is based on the value of the resistor.
Led series current limiting resistor calculator useful when designing circuits with a single led or seriesparallel led arrays for both the common smallcurrent 20ma leds and the more expensive, high power leds with currents up to a few amperes. In both of these calculations, the color code scheme is applicable for 4, 5, and 6 band resistors. Resistor calculator for leds serial and parallel free. Download resistor color coder v2 for color banded and smd. Use the resistor calculator to determine which combinations of resistors from the. Download ni multisim 12 and ultiboard 12 free 30 day. Freeware resistor calculator at download collection. They have different numbers of color bands and hence provide different information. The e series resistor values are used universally and provide a very useful selection of resistors to meet the requirements of any situation. These are referred to as preferred values or e series, and they are published in standard iec 60063. Select the first 3 or 4 bands for 20%, 10% or 5% resistors and all 5 bands for precision 2% or less, 5band resistors. In many electrical circuits resistors are connected in series or parallel.
It allows you to enter the colors of the bands on a 4band fixed resistor to calculate the resistance and tolerance of that particular resistor. Series parallel resistor calculator electronics 2000. When you select a resistor for this purpose, choose a device with a power rating between 2 and 10 times the value calculated below in order to avoid excessive. The current setup file available for download requires 56 kb of hard disk space.
Led resistor calculator lies within office tools, more precisely calculators. Mcu 8051 ide integrated development environment for some microcontrollers based on 8051 e. There are four more or less commonly used resistor series, with 12, 24, 48, and 96 values per decade, respectively. The third calculator will find a resistor value to place in parallel with a given resistor value to produce a specified total. Ohms law states that the current through a conductor between two points is directly proportional to the voltage. Impedance of r and l in series calculator high accuracy.
Calculate the total resistance of resistors in parallel with ease. Eventually, i will create a version that deals with 5band and 6band resistors, but 4band will do for now. The series for the standard values of the resistor which is generated through the process elaborated above is known as the e series and the values generated are known as the preferred values. Determine the color code of a resistor and calculate resistors for led circuits. Online calculator for finding a combination of resistors for a custom value. Sep 14, 2018 download resistor calculator a practical, effective and useful application that helps you to determine the color code of a resistor and calculate resistors for led circuits. It will also calculate the minimum and maximum values based on the tolerance ratio. Highpower resistors that can dissipate many watts of electrical power as heat, may be used as. Standard series values in a decade for resistances and capacitances e3 to e192 according to iec 60063 e192 e96 e48 e192 e96 e48 e192 e96 e48 e192 e96 e48 e24 e12 e6 e3 100 100 100 178 178 178 316 316 316 562 562 562 10 10 10 10. To calculate the resistance of a resistor, you can select the appropriate color bands in the above resistor color code calculator.
For example some lowvalue 1% resistors are available in e12 only. Conversion calculator parallel and series resistor digikey. Resistor color coder is a free desktop application that has been downloaded by hundreds of thousands of electronics enthusiasts. Just add the number of resistors in the first column, and then enter the values of each resistor with selecting the proper unit of resistor value in. Led series current limiting resistor calculator useful when designing circuits with a single led or series parallel led arrays for both the common smallcurrent 20ma leds and the more expensive, high power leds with currents up to a few amperes. The following are tools to calculate the ohm value and tolerance based on resistor color codes, the total resistance of a group of resistors in parallel or in series, and the resistance of a conductor based on size and conductivity. Resistor calculator is developed in such a fashion that you can calculate any needed resistance. The following calculator will determine the unknown series resistor value in ohms for the led circuit shown.
Resistor color code calculator 3, 4 and 5 band resistors. A designer might for example combine several resistors with standard values e series to reach a specific resistance value. Resistor calculator compute the best resistors combination to. Most likely, you are viewing using dropbox website or another limited browser environment. Tags calculator, download, electronic software, resistor post navigation. Resistors in series are equivalent to one resistor whose resistance is the sum of each. It will then provide you with the most suitable and closest resistor of the e series e12, e24, e48 etc. Standard series values in a decade for resistances and. Experiment with the voltage drop and ohms law calculators, or explore hundreds of other calculators. You can calculate the value of an unknown resistor with this program. Both of these conversions are available for 4 band, 5 band, and 6 band resistors. All are shown in the same screen in order to make direct comparisons on values. Most other resistor calculators out their will allow you to input the color bands but have know way of inputting straight data.
A resistor is a passive twoterminal electrical component that implements electrical resistance as a circuit element. This program makes it easier to read the values represented on. The series for the standard values of the resistor which is. Frankly, the color code can be provided by the user and even the program has the extensive feature which can show the resulting value of the resistor. As another feature the program can calculate the required resistor value for led circuits.
Adjustable symmetrical power supply with lm317 and lm337. This tool calculates the overall resistance value for multiple resistances connected either in series or in parallel. Software that calculates the resistor value and its power consumption in different leds circuit configurations simple, series o parallel according to the source voltage, the leds voltage and the wanted current value. Led series resistor calculator use this tool to calculate the resistance required to drive one or more seriesconnected leds from a voltage source at a specified current level. Resistor calculator has an automatic program update system.
Experiment with the voltage drop and ohms law calculators, or. A more complicated task is to pick resistors to satisfy a ratio. Switch to series and parallel capacitor calculator parallel resistor. The user interface is clear and plain, which makes it a very simple tool to use even for beginners. A designer might for example combine several resistors with standard values eseries to reach a specific resistance value. Resistor colour code solver is a featured resistor value calculator which offers both color code to value and value to color code conversions.
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