- #820 ohm resistor color code how to
- #820 ohm resistor color code full
- #820 ohm resistor color code code
Resistors that are not marked with a 6th band for this, typically have a TC of 200ppm or more. Note that ALL resistors have a temperature coefficient whether this is marked or not. It depends on where you are and where you want to go. If you plan on making equipment that is used in colder environments like in outer space, then you subtract this drift. This drift is normally added because resistance increase with temperature. If the temperature increases by 45 degree Celsius, the resistance will increase by 5,4 Ohm. The resistance will increase by 0,12 Ohm per degree Celsius. If the temperature increases by 45 degree Celsius, the resistance will increase by 22,5 Ohm.Ī resistor of 1.200 Ohm (1,2KOhm) with a 6th ring being Brown, we calculate the drift: The resistance will increase by 0,5 Ohm per degree Celsius. This gives us the drift in Ohm per degree Celsius.Ī resistor of 10.000 Ohm (10KOhm) with a 6th ring being Red, we calculate the drift:
#820 ohm resistor color code code
We calculate the temperature drift by dividing the resistor value by 1 million (That gives us 1 part of a million), then we multiply by the 6th band code value of which can be 15,25,50 or 100. Note that the temperature coefficient is different for different values of resistors. These resistors may be highly inaccurate and offers only 20% accuracy regarding their markings. Some resistors may lack the band for tolerance alltogether.
#820 ohm resistor color code full
It is time for the full chart of colours used on resistors.Ĭolour value Multiplier Tolerance Temperature CoefficientSilver 0,01 Silver 10% Gold 0,1 Gold 5% Black 0 1 Brown 1 10 1% 100ppm Red 2 100 2% 50ppm Orange 3 1k 15ppm Yellow 4 10k 25ppm Green 5 100k 0,50% Blue 6 1M 0,25% Violet 7 10M 0,10% Gray 8 0,05% White 9
#820 ohm resistor color code how to
Now that you know how to read the different bands on different resistors (most resistors will have slightly increased resistance with increased temperature.) In other words, how much the value will increase or decrease depending on temperature. This information is related to temperature (Temperature coefficient). The 6th band only adds more information about the resistor. The value of the resistor so far follows the previous 5 band explanation _ 1 2 3 4 5 6 _ Example of a 6 band resistor Note that all bands 1 through 6 is in useīrown, Red, Black makes 120 multiply by brown (10) and you get 1200 Ohm.ĥth band is Gold (1200 Ohm +-5% tolerance) See the schematics further down for these tolerances. The value of this particular resistor is 120x10 equals 1200 Ohm. Now for the multiplication factor.Ĥth band is Brown. The 4th band is used to tell you the multiplication factor. In this example the first 3 bands read out the value directly. _ 1 2 3 4 5 6 _ Example of a 5 band resistor Note that band 1,2,3,4 and 5 makes up the 5 in use See the schematics further down for more tolerances. The 5th band tells us how accurate this value is! (tolerance of the resistor) The value of this particular resistor is 12x10 equals 120 Ohm. The third band is used to tell you the multiplication factor. In this example the first 2 bands reads out the value directly. _ 1 2 3 4 5 6 _ Example of a 4 band resistor Note that band 1,2,3 and 5 makes up the 4 in use On four band resistors, there is normally a gap between the first three and the last fourth band. It is not always easy to know which way to hold the resistor in order to read the code correctly. Where as "most" resistors commonly in use, uses four bands, there are others using five and even six bands. We need to know the difference between some different types in order to read the colour codes of resistors.