{"product_id":"bc857b-pnp-transistor-sot-23-45v-100ma-general-purpose-smd","title":"BC857B PNP Transistor SOT-23 45V 100mA General Purpose SMD","description":"\u003cp\u003eThe BC857B is a general-purpose PNP silicon bipolar junction transistor (BJT) designed for low-power switching and signal amplification applications. Packaged in a compact SOT-23 surface-mount package, it serves as the SMD equivalent of the popular BC557 transistor and is widely used in modern electronic circuit designs.\u003c\/p\u003e\u003cp\u003eWith a collector-emitter voltage (VCEO) of −45V, 100mA collector current, and a DC current gain (hFE) of 220 to 475, the BC857B offers reliable performance for analog and digital switching applications. Its 100MHz transition frequency makes it suitable for high-speed signal processing and low-frequency amplification. Commonly paired with the BC847B NPN transistor in complementary amplifier and switching circuits.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e BC857B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransistor Type:\u003c\/strong\u003e PNP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e SOT-23\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Surface Mount (SMD)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollector-Emitter Voltage (VCEO):\u003c\/strong\u003e −45V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollector-Base Voltage (VCBO):\u003c\/strong\u003e −50V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmitter-Base Voltage (VEBO):\u003c\/strong\u003e −5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Collector Current (IC):\u003c\/strong\u003e −100 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Dissipation:\u003c\/strong\u003e 200 mW – 250 mW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Current Gain (hFE):\u003c\/strong\u003e 220 – 475\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransition Frequency (fT):\u003c\/strong\u003e 100 MHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDevice Marking:\u003c\/strong\u003e 3F\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Includes\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 x BC857B PNP Transistor SOT-23 45V 100mA General Purpose SMD\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cem\u003e\u003cstrong\u003eNote: Image is for representation purpose only.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Circuitcomps","offers":[{"title":"Default Title","offer_id":47659624464561,"sku":"CC-001114","price":2.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0707\/0937\/9249\/files\/BC857B_PNP_Transistor_SOT-23_45V_100mA_General_Purpose_SMD_1.png?v=1782824186","url":"https:\/\/circuitcomps.com\/products\/bc857b-pnp-transistor-sot-23-45v-100ma-general-purpose-smd","provider":"Circuitcomps","version":"1.0","type":"link"}