{"product_id":"bc817-25-215-npn-general-purpose-transistor-45v-500ma-sot-23","title":"BC817-25,215 NPN General Purpose Transistor (45V, 500mA, SOT-23)","description":"\u003cp\u003eEvery electronics maker needs a reliable workhorse for switching external components, and the \u003cb\u003eBC817-25\u003c\/b\u003e NPN bipolar junction transistor (BJT) is exactly that. When your microcontroller’s GPIO pins (like those on an Arduino, ESP32, or STM32) cannot output enough current to drive a relay, a buzzer, or a high-power LED, this tiny transistor acts as the perfect bridge. Capable of handling a continuous collector current of up to 500mA, it packs a serious punch for its microscopic size, easily driving small DC motors or lighting arrays.\u003c\/p\u003e\n\u003cp\u003eWith a high collector-emitter voltage rating of 45V, it is completely safe to use in 12V and 24V systems, making it highly versatile for custom 3D printer boards, automotive DIY projects, and drone auxiliary circuits. Housed in the industry-standard SOT-23 surface-mount package (denoted by the \",215\" tape and reel suffix), it requires virtually no PCB space. Whether you are shifting logic levels or building custom driver circuits, the BC817 is an essential, highly reliable building block for any professional or hobbyist hardware design.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eHigh Current Capacity:\u003c\/b\u003e Can safely switch up to 500mA of continuous current, which is more than enough for relays, buzzers, and small DC motors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eWide Voltage Tolerance:\u003c\/b\u003e A 45V breakdown voltage allows you to easily switch 12V or 24V loads using a simple 3.3V or 5V logic signal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMicrocontroller Friendly:\u003c\/b\u003e Easily driven into saturation by modern low-voltage processors with a minimal base current.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eSpace-Saving SOT-23:\u003c\/b\u003e The tiny SMD footprint saves crucial board space on densely populated PCBs and custom maker projects.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePart Number:\u003c\/b\u003e BC817-25,215\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eTransistor Type:\u003c\/b\u003e NPN Bipolar Junction Transistor (BJT)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMax Collector-Emitter Voltage (Vceo):\u003c\/b\u003e 45V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMax Collector Current (Ic):\u003c\/b\u003e 500mA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDC Current Gain (hFE):\u003c\/b\u003e 160 to 400 (Band 25)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePackage Type:\u003c\/b\u003e SOT-23 (SMD\/SMT)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RC-LIFE","offers":[{"title":"Default Title","offer_id":54287006695762,"sku":null,"price":1.0,"currency_code":"PLN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1065\/8067\/2850\/files\/bc817-25.jpg?v=1786965555","url":"https:\/\/rc-life.com\/pl\/products\/bc817-25-215-npn-general-purpose-transistor-45v-500ma-sot-23","provider":"rc-life","version":"1.0","type":"link"}