A larger gap between the tolerance band and the other bands is sometimes noticeable. To distinguish the reading direction, the tolerance band width is sometimes printed with 1.5 - 2 times the width of other bands. The reading direction is not always clear. Resistors cases usually have three to six bands that indicate their resistance, tolerance and sometimes their temperature coefficient of resistance (TCR). It describes the coding standard for both resistors and capacitors. The coding is defined in the international standard IEC 60062:2016. Surface mounted resistors (SMD) use another coding system that uses alphanumeric codes printed on its surface instead of color codes. When the resistor body surface is large enough, as in large wattage resistors, the resistance value, tolerance, and wattage are usually printed on the body of the resistor. Color-coding is also used for capacitors, inductors and diodes. Color bands are used because they can be easily and cheaply printed on a small electronic component.
This calculator supports resistors with 3, 4, 5, and 6 bands. It will also calculate the minimum and maximum values based on the tolerance ratio.
#Digi key resistor color code calculator driver
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#Digi key resistor color code calculator series
U-blox's SARA-R5 series modules offer long-term device availability and provide lifetime support. Silicon Motion's single-chip solid-state drive (SSD) offers high performance and data protection TDK's power capacitors offer minimized losses at higher frequencies K78 Series Non-Isolated DC/DC Switching RegulatorĬompact Non-isolated K78 DC/DC switching regulators' high efficiency is up to 95% QHL Series Baseplate Cooled 75 W to 750 W DC-DC Convertersīaseplate-cooled 300VDC input 75W-750W DC-DC converters for distributed power architectures So according to the formula the resistance will be: 152 * 1 = 152 Ohms with 5% tolerance. Let’s take an example of a 5-band resistor with the colors given in the above image (brown, green, red, black and gold). ‘ e’ represents the 5 th significant digit, which is the fifth band color of resistor and this is the tolerance value of resistor. ‘ d’ represents the 4 th significant digit, which is the fourth band color of resistor and this is the multiplier value used in formula. ‘ c’ represents the 3 rd significant digit, which is the third band color of resistor. ‘ b’ represents the 2 nd significant digit, which is the second band color of resistor. ‘ a’ represents the 1 st significant digit, which is the first band color of resistor. Just have a look to the resistor color code chart below and see the calculations, how the resistance value is calculated according to this chart.Ĭalculating resistance for a 5-band resistor To calculate the resistance of a resistor, you can select the appropriate color bands in the above resistor color code calculator.
A resistor is identified by its pattern of color of bands.
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