The electrical function of a resistor is specified by its resistance: common commercial resistors are manufactured over a range of more than nine orders of magnitude. Resistors are also implemented within integrated circuits. Practical resistors as discrete components can be composed of various compounds and forms. Resistors are common elements of electrical networks and electronic circuits and are ubiquitous in electronic equipment. Variable resistors can be used to adjust circuit elements (such as a volume control or a lamp dimmer), or as sensing devices for heat, light, humidity, force, or chemical activity. High-power resistors that can dissipate many watts of electrical power as heat may be used as part of motor controls, in power distribution systems, or as test loads for generators.įixed resistors have resistances that only change slightly with temperature, time or operating voltage. 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. EXAMPLE: A 1000 Ohm resistor with a 20% tolerance could be an 900 Ohm or 1100 Ohm value and still be within TOLERANCE.A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. There are only two possible bands here: Silver (10%) and Gold (5%) if there is no band the resistor is 20% tolerance. 47 ohm R47 Yellow Purple Silver NotationTolerance What is the tolerance of a silver resistor?
© Copyright 2006 Blue Point Engineering All Rights Reserved Resistance Resistor Color Code Band 1 Band 2 Band 3. 47 ohm R47 Yellow Purple Silver NotationTolerance What are the colors of the Blue Point resistor? Resistance Resistor Color Code Band 1 Band 2 Band 3.
What’s the color of a 220 ohm resistor?Ģ20 Ohmresistor color code is “red red brown gold” 300 Ohm- orange black brown gold 330 Ohm- orange orange brown gold 470 Ohmresistor color bands is “yellow, violet, brown, gold” 510 Ohm 620 Ohm 1k5% color code: Brown Black Red Gold (4 band) 1.2k 1.5kresistor color code 2k 2.2k 3k 3.9k 4.7k 5.1kresistor color code 6.8k What are the colors of the resistor bands? Another example (From chart): 5-band resistor has color Black – Brown Black Red Brown. So, the value ranges from 9.5KΩ to 10.5KΩ. What is the tolerance for a 5 band resistor? The band colours for resistor colour code in the order: The tolerance values represent by how much the resistance can vary from its mean value in terms of percentage. So if the colour of this band is Red (representing 2), the value given is 10 2. The band just next to the tolerance band is the multiplier band. What does the red band on a resistor mean? The three bands can be selected to know the resistor value. The 3-band resistor has three colors with multiplier and no tolerance. The Carbon composition resistors have 3 to 6 resistor color bands. 47 ohm R47 Yellow Purple Silver NotationTolerance How many colors are in a 3 band Ohm resistor?įor example, a 4.7K ohm resistor is shown as 4K7.
Resistor Color Code Band 1 Band 2 Band 3. 47 times 100 is 4,700! What is the color code for a resistor? The third band of the 4.7kΩ is red, which indicates that the 47 should be multiplied by 102 (or 100). The 4.7kΩ resistor shown here has color bands of yellow and violet to begin – which have digit values of 4 and 7 (47). The color code for the four bands 100 Ohm resistor is brown, black, brown, gold….4-band 100 ohm resistor color code is calculated as: 4th-band= Gold= ±5% (tolerance) How can you tell if a resistor is 100 ohm?
4-band 100 ohm resistor color code is calculated as: 3rd-band= Brown= 1 (multiplier) = 10^1 = 10. The color code for the four bands 100 Ohm resistor is brown, black, brown, gold. Remove the resistor from PCB then test it with a DMM in resistance mode and note down its value.And tolerance considered as => 5% of 100K =>5000Ω.