N2r resistor calculator is an application that lets the user to calculate values of resistors from the respective color codes along with a live display on screen. Calculator is capable of finding suitable standard e12 10% resistor value and power for one led designs. You might also be interested in our led resistor calculator. Different sets of resistor values may lead to the same identical lowest error. 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. The current setup file available for download requires 56 kb of hard disk space. Just input the indicated values and press the calculate button. The factors that determine the resistance value of the resistor are the supply voltage, v s, the forward voltage drop needed for the led, v f, and the desired current wanted to pass through the led. Sep, 20 to use the calculator, select a value from the vertical group of color band 1, from color band 2 and from color band 3. 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. With 4 bands the first and second band represent the first and second signficant digit of the ohm value, the 3 band is the decimal multiplier.
It is too difficult to find the exact value of resistors that you have calculated. Farnells resistor colour chart gives you band colours, resistance, and tolerance for various types of resistors to help you identify components in your electronics projects. 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. Its an application that lets the user to calculate values of resistors from the respective colour codes along with a live display on screen. Dec 29, 2015 download resistor calculator for leds serial and parallel toni december 29, 2015 april 7, 2010 calculator, download 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.
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. Resistor color code calculator and chart 4band, 5band or 6. If the resistor is 4 colored, leave the 3rd band and temperature coefficient empty. The smd resistor calculator is a fast and easy way to find the value of smd surface mount device resistors. Transistor base resistor calculator kaizer power electronics. Preferred resistor values are also calculated, use the radio buttons on each calculator to select the preferred value series to use. Here is a calculator for transistor base resistor values. So, when in doubt and when its possible dont hesitate to use a multimeter to doublecheck the critical components. So, theoretically, if this bus has the absolute maximum amount of capacitance on it, this bus should use at least 1. This simple calculator will help you determine the value of any smd resistor. Free resistor calculator app apk download for android getjar. The current gain, beta, hfe, is a value you can find in the datasheet for the specific transistor. Download resistor calculator using this simple and userfriendly application, you can quickly calculate the correct values of a resistor based on its various color bands. There are four more or less commonly used resistor series, with 12, 24, 48, and 96 values per decade, respectively.
For resistor calculator, enter the colors on the resistor above. This calculator is based on the ohms law calculator, but takes into consideration the voltage drop from the led. 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 color code calculator calculate 4 and 5 band. Led resistor calculator learning about electronics. Calculate the total series and parallel resistance of a circuit using digikeys parallel and series resistor calculator. If you like it please feel free to a small amount of money to. Led series resistor calculator from ab electronics uk. Ohms law states that the current through a conductor between two points is directly proportional to the voltage.
The appnote actually already calculated this for the worstcase fast mode 300 ns 0. Our free online resistor calculator is an easy to use way to calculate ohms. Led resistor calculator led series resistor calculator. If you like it please feel free to a small amount of money to secure the future of this website. Weve made it even easier for you to calculate the value of this resitor with our led calculator below. Select the number of bands, then their colors to determine the value and tolerance of the resistors or view all resistors digikey has to offer. The last two bands that are on 4 and 5 colored resistors are multiplier and tolerance. Resistor calculator is a simple java application to find resistor capacity. To use the calculator, select a value from the vertical group of color band 1, from color band 2 and from color band 3. The current gain, beta, hfe, is a value you can find in the datasheet for the specific trans. As a bonus, it will also calculate the power consumed by the led. N2r resistor calculator quickly calculates the given values of the color bands of resistors after selecting the color codes and clicking calculate. Led series resistance refers to the usage of resisters to stabilize the led current. The led seriesparallel array wizard is available for those of you who need to do calculations involving more than one led.
To calculate the resistor needed for a simple led circuit, simply take the voltage drop away from the source voltage then apply ohms law. Up to 10 sets of resistors may be presented, or as few as one. A resistor is perhaps the most common building block used in circuits. Resistor calculator for windows free downloads and. Type the resistance in the box below and select the units and optionally the tolerance from the dropdown boxes. Calculate the current you need to pass through the transistor when its on, that is your collector current. To calculate the voltage across any resistor in the potential divider, multiply the supply voltage e. If the resistor is 5 colored, leave only the temperature coefficient empty. There also some tips for user to find led forward voltage.
All are shown in the same screen in order to make direct comparisons on values. To use this tool, simply click on a particular color and number and watch how the actual bands on the resistor illustration change. This series resistor calculator calculates the total resistance value for all the resistors connected in series. Resistor calculator digital panel meters power products murata. Using only resistors in the e12, e6, e3 and e1 ranges of resistors, the calculator will find a pair of resistors which can be used to create a resistance which is the closest match to that required, and will also report any better match which can be obtained. Select how many bands your resistance has, then select the colour of each band and the application will calculate the value of it. You may click on any of the drop down box values and the color band display will change to the appropriate bands.
The current through the circuit is constant so iled is also the current through the resistor. Next comes a small gap helping you to distinguish left and right of the component and finally the. In the chart below you can click on the color fields to update the resistor colors and values. For instance, an ic chip that is has leads in two rows down opposite sides of the chip is called a dual inline package dip chip. Select the resistor type 4 or 5 bands using the radio buttons. The value of the resistor will be displayed below it. This tool is used to decode information for color banded axial lead resistors. In smd resistors, resistor package designators tell the length and width of the resistor. Simply choose the value for stripe 1, stripe 2, and stripe 3. The program was tested rigorously, but it still may have a few bugs. Resistor code calculator download free downloads and. Resistor color code calculator decodes value and tolerance of 4 and 5 band resistors. Convert 4 or 5 band resistor colour codes to or from resistance and tolerance. Details of the colour code system can be found here in the technical data section.
Or, you may enter a value and the bands will change. Top 4 download periodically updates software information of resistor calculator 1. This led resistor calculator calculates the value of the resistor which you would need in order to produce the desired current to go through the led. 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. When we use leds in circuits we always use a series resistor. Mar 03, 2014 download resistor calculator using this simple and userfriendly application, you can quickly calculate the correct values of a resistor based on its various color bands. To get started, input the 3 or 4 digit code and hit the calculate button or enter note. Electronics 2000 series parallel resistor calculator. Select the first 3 or 4 bands for 20%, 10% or 5% resistors and all 5 bands for precision 2% or less, 5band resistors. Download resistor calculator using this simple and userfriendly application, you can quickly calculate the correct values of a resistor based. Resistor calculation for led circuits single, in series, parallel. Resistor calculato calculates the given values of the color bands of resisror with easy.
Led resistor calculator lies within office tools, more precisely calculators. Resistor value and ratio calculator nightshade electronics. 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. You can also watch this video where kevin explains why we always use a series resistor, and explains how to. This calculator will help you determine the value of the resistor to add in series with the led to limit the current. Its an application that lets the user to calculate values of resistors. To calculate the input voltage enter resistor r1, resistor r2 and output voltage and then click calculate values to calculate the output voltage enter input voltage, resistor r1 and resistor r2 and then. The resistance value is displayed on the field below together with the tolerance and the temperature coefficient.
Resistor calculator is an application that calculates the resistance value by selecting the color codes on the resistor. The cost of running this website is covered by advertisements. Displaying the closest resistor of the e series and renard numbers. 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. The value of resistance will change after you have made your choice of color values for each color band. The resistor color code calculator decodes and identifies a value and tolerance of 4 band wire wound resistors. Manage your cddvd inventory as well as backup copies of your data and documents. Conversion calculator parallel and series resistor digikey. This is the new version of the single led series resistance calculator, good for when you have a single led and need to know what resistor should i use with my led. Generally, 5% tolerance resistors are available in e24 and 1% resistors in e96, but this is not a hard and fast rule. Using the resulting value for r2, select the nearest 1% resistor value from the chart. Software product description n2r resistor calculator is an application that lets the user to calculate values of resistors from the respective color codes along with a live display on screen.
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. Use this website to convert resistor color codes into resistor ohm value and tolerance. This calculator is designed to display a typical carbon film resistor. Try it out now and then be sure to check out all of our online calculators. Shows the sunrise and sunset for any place in the world, on any day, in any time zone. You can see the changing colors of the applications contained in resistance. Calculator works on windows xp, vista, 7, but you have to install microsoft. Resistor color code calculator calculate 4 and 5 band resistors. The calculator is capable of finding suitable standard e12 10% resistor value and power for one led designs. Experiment with the voltage drop and ohms law calculators, or. Select the color code and find the resistor value from your windows pc.
The software installer includes 6 files and is usually about 1. This calculator gives the values for current limiting resistors for leds. Our resistor color code calculator is a handy tool for reading carboncomposition resistors whether its a 4band, 5band or 6band type. This calculator converts resistor values to or from 5band or 4band colour codes. Download resistor calculator for leds serial and parallel 2. Resistors come in variations with 4, 5 or more color bands where a 4band color code is most common. Resistor color code calculator 3, 4 and 5 band resistors.
Led resistor calculator free download windows version. Led resistor calculator resistor value for leds circuit. Resistor color code calculator 4 and 5 band resistors. If you are not able to find the exact value of resistor that you have calculated, then select the next coming value of resistor that you have calculated, for example, if the calculated value is 3.
All you have to do is enter the 3 digit code standard tolerance or 4 digit code precision surface mount that is found on the resistor and the calculator will automatically display the resistance value. Calculate values of resistors from their respective color codes. N2r resistor calculator quickly calculates the given values of the color bands of resistors. The term package refers to the size, shape andor lead configuration of an electronic component. Immediately to the left of the calculate values button below the three bands, there are three boxes that upon selection of a color from the bands, an identifying number and color will correspond in appearance. Resistor color code calculator and chart 4band, 5band.
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