{"product_id":"s9018-npn-transistor-j8-to-92-18v-50ma-200mw-general-purpose-rf-audio-amplifier","title":"S9018 NPN Transistor J8 TO-92 18V 50mA 200mW - General Purpose RF Audio Amplifier","description":"\u003ch2\u003eS9018 NPN Transistor J8 TO-92 — Low-Power General Purpose Amplifier \u0026amp; Switch\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eS9018\u003c\/strong\u003e is a widely used \u003cstrong\u003eNPN bipolar junction transistor (BJT)\u003c\/strong\u003e in a compact \u003cstrong\u003eTO-92 through-hole package\u003c\/strong\u003e. It is designed for low-power amplification and high-frequency switching in consumer electronics, audio preamplifiers, RF circuits, oscillators, timers, and DIY electronics projects. With its small footprint, reliable gain, and fast switching characteristics, the S9018 is a staple component for students, hobbyists, and repair technicians.\u003c\/p\u003e\u003cp\u003eMarked with \u003cstrong\u003e“J8”\u003c\/strong\u003e on the package, this transistor is commonly employed in signal amplification stages, local oscillator circuits for FM\/VHF tuners, and low-current switching applications where a general-purpose NPN device is required.\u003c\/p\u003e\u003ch3\u003eKey Characteristics\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGeneral-purpose NPN transistor for amplification and switching\u003c\/li\u003e\n\u003cli\u003eCompact TO-92 through-hole package for breadboard and PCB use\u003c\/li\u003e\n\u003cli\u003eModerate DC current gain (hFE) typically 100–300\u003c\/li\u003e\n\u003cli\u003eFast switching speed suitable for signal processing and RF circuits\u003c\/li\u003e\n\u003cli\u003eLow saturation voltage for efficient switching performance\u003c\/li\u003e\n\u003cli\u003ePopular in audio preamplifiers, oscillators, timers, and AM\/FM circuits\u003c\/li\u003e\n\u003cli\u003eCompatible with 2.54mm standard breadboard and perfboard layouts\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications \/ Datasheet\u003c\/h3\u003e\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse:collapse;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransistor Type\u003c\/td\u003e\n\u003ctd\u003eNPN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eTO-92\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMarking Code\u003c\/td\u003e\n\u003ctd\u003eJ8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollector-Base Voltage (VCBO)\u003c\/td\u003e\n\u003ctd\u003e30V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollector-Emitter Voltage (VCEO)\u003c\/td\u003e\n\u003ctd\u003e18V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEmitter-Base Voltage (VEBO)\u003c\/td\u003e\n\u003ctd\u003e5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollector Current (IC)\u003c\/td\u003e\n\u003ctd\u003e50mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation (Ptot)\u003c\/td\u003e\n\u003ctd\u003e200mW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Current Gain (hFE)\u003c\/td\u003e\n\u003ctd\u003e100–300 @ IC = 1mA, VCE = 6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransition Frequency (fT)\u003c\/td\u003e\n\u003ctd\u003e150MHz (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Junction Temperature\u003c\/td\u003e\n\u003ctd\u003e-55°C to +150°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePin Configuration (flat side facing you)\u003c\/td\u003e\n\u003ctd\u003eEmitter (E) – Base (B) – Collector (C), left to right\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eCommon Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAudio frequency signal amplification\u003c\/li\u003e\n\u003cli\u003eAM\/FM RF amplifiers and local oscillators\u003c\/li\u003e\n\u003cli\u003eSmall load switching and relay driver circuits\u003c\/li\u003e\n\u003cli\u003eOscillators, timers, and pulse generators\u003c\/li\u003e\n\u003cli\u003eDIY electronics, Arduino, and Raspberry Pi projects\u003c\/li\u003e\n\u003cli\u003eRepair and replacement in consumer electronics\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Includes\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 x S9018 NPN Transistor (TO-92, J8 marking)\u003c\/li\u003e\u003c\/ul\u003e","brand":"DigiLog","offers":[{"title":"Default Title","offer_id":51624334459158,"sku":null,"price":15.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0744\/0764\/1366\/files\/s9018-npn-transistor-j8-to-92-18v-50ma-200mw.jpg?v=1785406192","url":"https:\/\/digilog.pk\/products\/s9018-npn-transistor-j8-to-92-18v-50ma-200mw-general-purpose-rf-audio-amplifier","provider":"digilog.pk","version":"1.0","type":"link"}