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Electronic circuits and components * Course Index * Introduction * About the Author * About this Course * Feedback * Course Navigation * How to use this Course * TINA * Locktronics Fundamentals * Introduction: Fundamentals * Units and Multiples * Electricity * Electronic Principles * Electrical Circuits * Alternating Current * Assessment: Fundamentals Passive Components * Introduction: Passive Components * Resistors ## Resistor Specifications ## Examples: Resistor Specifications ## Preferred Values: Resistors ## Resistor Colour Code ## Examples: Resistor Colour Code Test ## BS1852 Resistor Coding ## Examples: BS1852 Resistor Coding ## Measuring Resistance ## Resistor Symbols ## Resistor Construction ## Resistors in Series ## Worksheet: Resistors in Series ## Resistors in Parallel ## Worksheet: Resistors in Parallel ## Resistance and Temperature ## Examples: Resistance and Temperature ## Positive Temperature Coefficient ## Negative Temperature Coefficient ## Thermistors ## Light Dependent Resistors * Capacitors * Inductors * Transformers * Batteries, Fuses, Lamps and Switches * Assessment: Passive Components Semiconductors * Introduction: Semiconductors * Diodes * Transistors * Logic Gates * Assessment: Semiconductors Passive Circuits * Introduction: Passive Circuits * Series and Parallel Connections * Kirchoff's Laws * Potential and Current Dividers * Passive Time Variant Circuits * Assessment: Passive Circuits Active Circuits * Introduction: Active Circuits * Power Supply Circuits * Operational Amplifier Circuits * Transistor Amplifier Circuits * 555 Timer Circuits * Assessment: Active Circuits Parts Gallery * Introduction: Parts Gallery * Passive Component Images * Semiconductor Images * Other Images * Quizzes |
(:Summary:Contains the 'action' links (like Browse, Edit, History, etc.), placed at the top of the page, see site page actions:) (:comment This page can be somewhat complex to figure out the first time you see it. Its contents are documented at PmWiki.SitePageActions if you need help. :) * Print (:comment (:if group Site,SiteAdmin,Cookbook,Profiles,PmWiki*:) (:comment delete if and ifend to enable backlinks:) * %item rel=nofollow class=backlinks accesskey='$[ak_backlinks]'% [[{*$Name}?action=search&q=link={*$FullName} | $[Backlinks] ]] (:ifend:) :) * Login Resistor Specifications<^< Resistors | Course Index | Examples: Resistor Specifications >^>(:nl:) The specifications for a resistor usually include: 1 The value of resistance (expressed in Ω, kΩ or MΩ) 2 The accuracy or tolerance (quoted as the maximum permissible percentage deviation from the marked value) 3 The power rating (which must be equal to, or greater than, the maximum expected power dissipation). Other practical considerations when selecting resistors for use in a particular application include temperature coefficient, noise performance, stability, and ambient temperature range. ToleranceDue to manufacturing tolerances, a resistor marked with a value of 100Ω will not usually have a value of precisely 100Ω. For example, a resistor marked 100Ω and produced with a tolerance of ±10% will have a value which falls within the range 90Ω to 110Ω. Resistors are usually produced with tolerances of ±2%, ±5% or ±10% and the tolerance rating is indicated by one of the coloured bands on the body of the resistor; red = 2%, gold = 5%, silver = ±10%, no tolerance stripe = 20%. (:nl:)(:table style="clear:both":)
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