Standard Resistor Value Table

March 08, 2024 Post a Comment

Standard resistor value table

Preferred Values or E-series The series looks as follows: 1– 1.2 – 1.5 – 1.8 – 2.2 – 2.7 – 3.3 – 3.9 – 4.7 – 5.6 – 6.8 – 8.2 – 10 etc. All of these values can be powers of ten (1.2 – 12 – 120, etc.). While the E12 series is the most common, other series are also available.

How do you read a standard resistor value?

Resistor Values are read starting from the line closest to the end of the resistor. They will either have 4 bands or 5 bands. If there are four bands then the first two are the value of the two most significant digits, the third is the multiplier, and the fourth is the precision.

What is a 5% resistor?

The above resistor has a tolerance of 5%. This means that its ohm value could be 5% greater or 5% less than its quoted value. The above resistor has a value of 1k (1000 ohms) and a tolerance of 5% - this means that its value could be between 950 ohms and 1050 ohms (1000 - 5% to 1000 + 5%).

What are E12 resistor values?

The E12 series has 12 values for each multiple of ten; it is used for resistors with 10% tolerance. The values are 10, 12, 15, 18, 22, 27, 33, 39, 47, 56, 68, 82, then it continues 100, 120, 150 etc.

What are the 4 types of resistors?

Types Of Resistors

Thermistors.
Varistor Resistors.
Photo Resistor or LDR (Light Dependent Resistors)
Surface Mount Resistors.

What is a normal resistance for a resistor?

Most resistors you'll see range between 1 ohm and 1 megaohm (1.0 MΩ) they often have 5% tolerance but you can buy 1% or even 0.1% accuracy resistors.

How do you read a 5 line resistor?

Example: If the colors on a 5 band resistor is in this order: brown, green, red, blue and violet (as shown in figure). The values of color bands will be like this: Brown = 1, Green = 5, Red = 2, blue = 106, Violet = 0.10%.

What are standard resistor symbols?

What is the symbol for a resistor? The ohm symbol Ω represents the unit of electrical resistance.

What do the numbers mean on a resistor?

The Three and Four Digit Systems In these systems, the first two or three digits indicate the numerical resistance value of the resistor and the last digit gives a multiplier. The number of the last digit indicates the power of ten by which to multiply the given resistor value.

What are the 6 types of resistors?

Types of Resistors

Fixed Value Resistors. These are the predominant type of resistor configuration, and as the name suggests, they have a fixed resistance value.
Variable Resistors. ...
Resistor Networks. ...
Carbon Film Resistors. ...
Metal Film Resistors. ...
Wirewound Resistors. ...
Metal Oxide Resistors. ...
Metal Strip Resistors.

Is a 1 or 5 resistor better?

If the tolerance ratings you are referring to is the last color band, then the resistors with the smaller tolerance value is much better… Like for example, a 1% tolerance is preferred than a 5% or 10% , since it is an indication of precision in resistance value..

How do I choose a resistor?

To select a resistor for a specific application, the following steps are recommended:

1 . (a) Determine the Resistance.
2 . Determine the proper “Watt Size” (physical size) as controlled by. ...
3 . ...
step 1 deteRmiNe ResistANce ANd wAtts.
step 2 poweR RAtiNg oR physicAl size oF ResistoR. ...
Ambient Temperature. ...
Enclosure. ...
Grouping.

Is E12 and C7 the same?

The industry uses many terms for the same size: C7 / E12 / Candelabra Base Bulbs typically used for chandelier-type fixtures and decorative lighting.

What does E12 stand for?

Small Base Light Bulb The 12 in E12 stands the diameter of the screw base in millimeters, so an E12 light bulb has an Edison Screw base that's 12 millimeters in diameter. This is a really simple name for a simple base that is easy to remember. So the E is for Edison and the 12 is for 12-millimeters.

What is E6 resistor?

The different sets of standard resistor values are known by their E-series numbers: E6 has six resistance values in each decimal interval, E12 has twelve, E24 has twenty-four and so forth. Table of all nominal resistance values of resistors, which conform to E24 series.

What are 5 examples of resistors?

Examples of Resistors

Street Lighting. The street lights get automatically switched on in the evening and switched off in the sunlight.
Laptop and Mobile Chargers. ...
Temperature Control. ...
Fan Speed Controller. ...
Measuring Electrical Current. ...
Temperature Sensor. ...
In-Circuit Functioning. ...
Dividing Voltage.

Which type of resistor is best?

Foil resistors are considered to have the best TCRs and precision of any resistor commonly available today. These low-noise components also have very low capacitance and no inductance at all.

What is the most common resistor?

Carbon Resistors are the most common type of Composition Resistors. Carbon resistors are a cheap general purpose resistor used in electrical and electronic circuits.

What is the acceptable resistance value?

The acceptable Earth Resistance at earth MEEB busbar shall not be more than 1 ohm. For achieving this value more than one earth pits can be installed if necessary depending upon the soil resistivity. In places where space is not available to provide parallel earth pits then longer earth rods may be provided.

What is a good resistance value?

The NFPA and IEEE recommend a ground resistance value of 5 ohms or less while the NEC has stated to “Make sure that system impedance to ground is less than 5 ohms specified in NEC 50.56. In facilities with sensitive equipment it should be 5ohms or less.”