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Resistor
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A resistor is a passive two-terminal electronic component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal l
Various resistor types of different shapes and sizes
Various resistor types of different shapes and sizes
An aluminium-encased power resistor rated for dissipation of 50 W when mounted on a heat-sink
An aluminium-encased power resistor rated for dissipation of 50 W when mounted on a heat-sink
VZR power resistor 1.5 kΩ 12 W, manufactured in 1963 in the Soviet Union
VZR power resistor 1.5 kΩ 12 W, manufactured in 1963 in the Soviet Union
Axial resistors with wire leads for through-hole mounting
Axial resistors with wire leads for through-hole mounting
Electronic color code
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An electronic color code is used to indicate the values or ratings of electronic components, usually for resistors, but also for capacitors, inductors, diodes and others. A separate code, the 25-pair
Resistor
…had uninsulated bodies; the lead wires were wrapped around the ends of the resistance element rod and soldered. The completed resistor was painted for color-coding of its value. The resistive element in carbon composition resistors is made from a mixture of finely powdered carbon and an insulating material, usually…
A 2.26 kΩ, 1%-precision resistor with 5 color bands (E96 series), from top, 2-2-6-1-1; the last two brown bands indicate the multiplier (×10) and the
A 2.26 kΩ, 1%-precision resistor with 5 color bands (E96 series), from top, 2-2-6-1-1; the last two brown bands indicate the multiplier (×10) and the tolerance (1%).
RMA resistor color code guide, ca. 1945–1950
RMA resistor color code guide, ca. 1945–1950
Example color-coded resistors
Example color-coded resistors
Postage-stamp mica capacitors marked with the EIA 3-dot and 6-dot color codes, giving capacitance value, tolerance, working voltage, and temperature c
Postage-stamp mica capacitors marked with the EIA 3-dot and 6-dot color codes, giving capacitance value, tolerance, working voltage, and temperature characteristic. This style of capacitor was used in vacuum-tube equipment.