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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 * 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 ## Diodes etc ## Transistors ## Integrated Circuits * 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 Transistors<^< Diodes etc | Course Index | Integrated Circuits >^>(:nl:) >>frame round<< These two small-signal transistors provide common-emitter current gains of between 150 and 200 and they are supplied in a plastic TO92 package. Transistors of this type are ideal for use as general purpose amplifiers and as low-current switches. >>frame round<< These small-signal transistors are supplied in TO18 packages and they exhibit common-emitter current gains of between 175 and 250. Transistors of this type are used in audio amplifiers and for general purpose applications. >>frame round<< Medium-power transistors are often supplied in TO5 packages. These particular devices offer a maximum collector power dissipation of 1W with current gain in the range from 50 to 125. Transistors of this type are often used as driver stages in power amplifiers. >>frame round<< This TO220 packaged power transistor is rated at a maximum collector power dissipation of 15W and it is able to withstand collector-emitter voltage of up to 65V. The device is ideal for use in the output stage of a power amplifier (in which case it is normally used in conjunction with another complementary transistor). >>frame round<< In very high power applications (e.g. at power levels of 50W, or more) it is necessary to provide a transistor with very effective means of conducting the heat away from the semiconductor junction. This metal-cased TO3 packaged transistor can be used very effectively with a metal finned heatsink to ensure that the junction remains cool. This particular transistor is rated at a maximum collector power dissipation of 115W.
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