{"product_id":"bd681-npn-power-darlington-transistor","title":"BD681 NPN Power Darlington Transistor","description":"The BD681 is an NPN-power Darlington transistor designed for high-current and high-gain applications. It is widely used in power amplification and switching applications due to its ability to handle large currents and voltages. The BD681 is housed in a TO-126 package, which provides good heat dissipation and ease of mounting.\n\u003cdiv class=\"product_info\"\u003e\n\u003ch1 class=\"sing--sub-heading\"\u003e\u003cspan style=\"font-size: 18.72px;\"\u003e Features:\u003c\/span\u003e\u003c\/h1\u003e\n\u003cstrong\u003eDarlington Configuration:\u003c\/strong\u003e The BD681 consists of two NPN transistors connected in a Darlington configuration, which provides a very high current gain.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHigh Current Gain:\u003c\/strong\u003e It offers a very high current gain (hFE), typically in the range of 750 to 1000, making it suitable for applications requiring high amplification.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHigh Collector-Emitter Voltage: \u003c\/strong\u003eThe BD681 can handle a high collector-emitter voltage (Vceo) of up to 100V, allowing it to be used in high-voltage circuits.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHigh Collector Current:\u003c\/strong\u003e It can handle a high collector current (Ic) of up to 4A, making it suitable for driving heavy loads.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTO-126 Package:\u003c\/strong\u003e The TO-126 package provides good thermal performance and can be easily mounted with a heatsink for improved heat dissipation.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eLow Saturation Voltage:\u003c\/strong\u003e The Darlington configuration results in a low saturation voltage, improving efficiency in switching applications.\n\u003cdiv\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch2 class=\"sing--sub-heading\"\u003e\u003cspan style=\"font-size: 18.72px;\"\u003e Applications:\u003c\/span\u003e\u003c\/h2\u003e\n\u003cstrong\u003ePower Amplification:\u003c\/strong\u003e The BD681 is widely used in power amplifier circuits for driving speakers and other high-power audio loads.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSwitching Applications:\u003c\/strong\u003e It is suitable for switching applications where it can control large currents and voltages, such as in motor drivers and relay drivers.\n\u003cdiv\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eTechnical Details\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eManufacturer Part No: BD681\u003c\/li\u003e\n\u003cli\u003eManufacturer: STMicroelectronics\u003c\/li\u003e\n\u003cli\u003eSeries: BD681\u003c\/li\u003e\n\u003cli\u003eProduct Category: Darlington Transistors\u003c\/li\u003e\n\u003cli\u003eConfiguration: Single\u003c\/li\u003e\n\u003cli\u003eTransistor Polarity: NPN\u003c\/li\u003e\n\u003cli\u003eCollector-Emitter Voltage VCEO Max: 100 V\u003c\/li\u003e\n\u003cli\u003eEmitter- Base Voltage VEBO: 5 V\u003c\/li\u003e\n\u003cli\u003eCollector- Base Voltage VCBO: 100 V\u003c\/li\u003e\n\u003cli\u003eMaximum DC Collector Current: 4 A\u003c\/li\u003e\n\u003cli\u003eMaximum Collector Cut-off Current: 200 uA\u003c\/li\u003e\n\u003cli\u003ePd – Power Dissipation: 40 W\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: +150°C\u003c\/li\u003e\n\u003cli\u003eContinuous Collector Current: 4 A\u003c\/li\u003e\n\u003cli\u003eDC Collector\/Base Gain hFE Min: 750\u003c\/li\u003e\n\u003cli\u003eProduct Type: Darlington Transistors\u003c\/li\u003e\n\u003cli\u003eMounting Style: Through Hole\u003c\/li\u003e\n\u003cli\u003ePackage\/Case: TO-126\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eApplications\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eLinear and switching\u003c\/li\u003e\n\u003cli\u003eIndustrial equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eProduct Video\u003c\/h3\u003e\n\u003cdiv id=\"p_video\"\u003e\u003ciframe width=\"800\" height=\"400\" src=\"https:\/\/www.youtube.com\/embed\/h_y1y6eUvIY\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eDocumentation\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds ls-n\"\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/drive.google.com\/file\/d\/1xSjQKzACii4hPzERgSZLFkFoiGTgd1gk\/view?usp=drive_link\"\u003eDatasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003ePackage Includes\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds ls-n\"\u003e\n\u003cli\u003e1 x BD681 NPN Power Darlington Transistor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"KitsGuru","offers":[{"title":"Default Title","offer_id":44499204964604,"sku":"TRANS042","price":17.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/2130\/4757\/files\/BD681NPNpowerDarlingtontransistor_FRONT.jpg?v=1690873543","url":"https:\/\/kitsguru.com\/de\/products\/bd681-npn-power-darlington-transistor","provider":"KitsGuru","version":"1.0","type":"link"}