{"product_id":"a86-bc548b-npn-general-purpose-transistor-30v-100ma-to-92-package-low-noise-amplifier-switch","title":"A86 BC548B NPN General Purpose Transistor, 30V 100mA, TO-92 Package, Low Noise Amplifier \u0026 Switch","description":"\u003cp data-path-to-node=\"7\"\u003eThe \u003cb data-path-to-node=\"7\" data-index-in-node=\"4\"\u003eBC548B\u003c\/b\u003e is a classic silicon epitaxial planar NPN transistor housed in a standard \u003cb data-path-to-node=\"7\" data-index-in-node=\"85\"\u003eTO-92 package\u003c\/b\u003e. Known for its reliability and versatility, it is designed for use as a general-purpose amplifier and switch. The \"B\" suffix indicates a medium current gain (hFE) range, making it ideal for applications that require balanced performance between sensitivity and stability.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"8\"\u003e\u003cb data-path-to-node=\"8\" data-index-in-node=\"0\"\u003eKey Technical Specifications\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul data-path-to-node=\"9\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,0,0\"\u003e\u003cb data-path-to-node=\"9,0,0\" data-index-in-node=\"0\"\u003eTransistor Type:\u003c\/b\u003e NPN\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,1,0\"\u003e\u003cb data-path-to-node=\"9,1,0\" data-index-in-node=\"0\"\u003eCollector-Emitter Voltage (\u003cspan class=\"math-inline\" data-math=\"V_{CEO}\" data-index-in-node=\"27\"\u003e$V_{CEO}$\u003c\/span\u003e):\u003c\/b\u003e 30V (Max)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,2,0\"\u003e\u003cb data-path-to-node=\"9,2,0\" data-index-in-node=\"0\"\u003eCollector Current (\u003cspan class=\"math-inline\" data-math=\"I_C\" data-index-in-node=\"19\"\u003e$I_C$\u003c\/span\u003e):\u003c\/b\u003e 100mA (Continuous)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,3,0\"\u003e\u003cb data-path-to-node=\"9,3,0\" data-index-in-node=\"0\"\u003eCurrent Gain (\u003cspan class=\"math-inline\" data-math=\"h_{FE}\" data-index-in-node=\"14\"\u003e$h_{FE}$\u003c\/span\u003e):\u003c\/b\u003e 200 to 450 (Category B)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,4,0\"\u003e\u003cb data-path-to-node=\"9,4,0\" data-index-in-node=\"0\"\u003ePower Dissipation (\u003cspan class=\"math-inline\" data-math=\"P_{tot}\" data-index-in-node=\"19\"\u003e$P_{tot}$\u003c\/span\u003e):\u003c\/b\u003e 500mW\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,5,0\"\u003e\u003cb data-path-to-node=\"9,5,0\" data-index-in-node=\"0\"\u003ePackage Type:\u003c\/b\u003e TO-92 (Through-hole)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,6,0\"\u003e\u003cb data-path-to-node=\"9,6,0\" data-index-in-node=\"0\"\u003eTransition Frequency (\u003cspan class=\"math-inline\" data-math=\"f_T\" data-index-in-node=\"22\"\u003e$f_T$\u003c\/span\u003e):\u003c\/b\u003e 300MHz (Typical)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"10\"\u003e\u003cb data-path-to-node=\"10\" data-index-in-node=\"0\"\u003eApplications\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul data-path-to-node=\"11\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,0,0\"\u003e\u003cb data-path-to-node=\"11,0,0\" data-index-in-node=\"0\"\u003eSwitching:\u003c\/b\u003e Driving small loads like LEDs, relays, and buzzers from microcontroller outputs (Arduino\/Raspberry Pi).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,1,0\"\u003e\u003cb data-path-to-node=\"11,1,0\" data-index-in-node=\"0\"\u003eAmplification:\u003c\/b\u003e Low-noise pre-amplifiers for audio signals and sensors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,2,0\"\u003e\u003cb data-path-to-node=\"11,2,0\" data-index-in-node=\"0\"\u003eSignal Processing:\u003c\/b\u003e Logic gate circuits and signal inversion.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,3,0\"\u003e\u003cb data-path-to-node=\"11,3,0\" data-index-in-node=\"0\"\u003eEducation:\u003c\/b\u003e The \"go-to\" transistor for learning electronics and breadboarding.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"12\"\u003e\u003cb data-path-to-node=\"12\" data-index-in-node=\"0\"\u003eWhy Choose the BC548B?\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul data-path-to-node=\"13\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,0,0\"\u003e\u003cb data-path-to-node=\"13,0,0\" data-index-in-node=\"0\"\u003eHigh Versatility:\u003c\/b\u003e A direct replacement for many common small-signal NPN transistors (like BC547 or 2N3904 with minor spec differences).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,1,0\"\u003e\u003cb data-path-to-node=\"13,1,0\" data-index-in-node=\"0\"\u003eLow Noise:\u003c\/b\u003e Excellent for clear signal amplification in audio circuits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,2,0\"\u003e\u003cb data-path-to-node=\"13,2,0\" data-index-in-node=\"0\"\u003eCompact Form Factor:\u003c\/b\u003e The TO-92 package is easy to handle for soldering or breadboard prototyping.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SLVSALES","offers":[{"title":"Default Title","offer_id":45763765993658,"sku":null,"price":46.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/6377\/9258\/files\/Screenshot2026-04-09120050.png?v=1775716299","url":"https:\/\/www.slvsales.in\/products\/a86-bc548b-npn-general-purpose-transistor-30v-100ma-to-92-package-low-noise-amplifier-switch","provider":"SLVSALES","version":"1.0","type":"link"}