{"product_id":"bc548-npn-general-purpose-transistor-30v-100ma-to-92-through-hole-switching-and-amplifier-transistor","title":"BC548 NPN General-Purpose Transistor – 30V 100mA TO-92 Through-Hole Switching and Amplifier Transistor","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eThe \u003cstrong\u003eBC548 NPN transistor\u003c\/strong\u003e is a compact, general-purpose bipolar junction transistor designed for low-power switching, signal amplification and electronic control applications. It is widely used in DIY circuits, educational projects, audio preamplifiers, sensor circuits, LED controllers, relay driver stages and general electronic prototyping.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis transistor can be used as an electronic switch to control small loads from a low-current signal or as an amplifier for low-level analogue and audio signals. Its compact \u003cstrong\u003eTO-92 through-hole package\u003c\/strong\u003e makes it easy to install on breadboards, prototype boards and printed circuit boards.\u003c\/p\u003e\n\u003cp\u003eThe BC548 supports a maximum collector-emitter voltage of approximately \u003cstrong\u003e30V\u003c\/strong\u003e, a continuous collector current of up to \u003cstrong\u003e100mA\u003c\/strong\u003e, and collector power dissipation of up to approximately \u003cstrong\u003e500mW\u003c\/strong\u003e, subject to operating and thermal conditions. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eDifferent gain-group versions may be marked \u003cstrong\u003eBC548A, BC548B or BC548C\u003c\/strong\u003e. These suffixes indicate different DC current-gain ranges. The exact gain and electrical characteristics may therefore vary according to the manufacturer and transistor marking.\u003c\/p\u003e\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSmall-signal amplification\u003c\/li\u003e\n\u003cli\u003eLow-current electronic switching\u003c\/li\u003e\n\u003cli\u003eLED switching circuits\u003c\/li\u003e\n\u003cli\u003eBuzzer driver circuits\u003c\/li\u003e\n\u003cli\u003eSensor output circuits\u003c\/li\u003e\n\u003cli\u003eAudio preamplifier projects\u003c\/li\u003e\n\u003cli\u003eMicrophone amplifier circuits\u003c\/li\u003e\n\u003cli\u003eOscillator and timer circuits\u003c\/li\u003e\n\u003cli\u003eArduino and microcontroller interfacing\u003c\/li\u003e\n\u003cli\u003eRelay driver stages with suitable protection\u003c\/li\u003e\n\u003cli\u003eEducational electronics experiments\u003c\/li\u003e\n\u003cli\u003eBreadboard and PCB prototyping\u003c\/li\u003e\n\u003cli\u003eHobby and DIY electronic projects\u003c\/li\u003e\n\u003cli\u003eSignal-processing circuits\u003c\/li\u003e\n\u003cli\u003eTransistor-based logic circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePin Configuration\u003c\/h3\u003e\n\u003cp\u003eFor many BC548 transistors, when the flat face is held towards you and the pins point downward, the common pin order is:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePin 1 – Collector\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003ePin 2 – Base\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003ePin 3 – Emitter\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, transistor pin arrangements can differ between manufacturers. Always verify the datasheet or test the component before connecting it to a circuit.\u003c\/p\u003e","brand":"MAJESTRONICZ","offers":[{"title":"Default Title","offer_id":48090980384926,"sku":null,"price":2.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/9257\/2574\/files\/bc54.jpg?v=1786014833","url":"https:\/\/majestronicz.in\/products\/bc548-npn-general-purpose-transistor-30v-100ma-to-92-through-hole-switching-and-amplifier-transistor","provider":"MAJESTRONICZ","version":"1.0","type":"link"}