{"product_id":"bd139-npn-bipolar-medium-power-transistor-bjt-80v-1-5a-to-126-package","title":"BD139 NPN Bipolar Medium Power Transistor (BJT) 80V 1.5A TO-126 Package","description":"\u003cmeta name=\"description\" content=\"Buy BD139 NPN Bipolar Medium Power Transistor BJT 80V 15A TO126 online in India at best price from The Engineer Store, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n\u003ch1\u003eBD139 NPN Bipolar Medium Power Transistor (BJT) 80V 1.5A TO-126 Package\u003c\/h1\u003e\n\n\u003cp\u003e\u003cstrong\u003eQuality electronics from The Engineer Store, Bengaluru. Fast shipping, 7-day warranty on manufacturing defects, expert support.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eParameter\u003c\/td\u003e\n\u003ctd\u003eValue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransistor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNPN Bipolar Junction Transistor (BJT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Collector-Emitter Voltage (Vce)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e80V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Collector Current (Ic)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTO-126 (3-pin, through-hole)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Classification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMedium Power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOriginal\/Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7-day warranty on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTechnical Support\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEmail \u0026amp; WhatsApp 24\/7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eWhy Choose BD139 from The Engineer Store?\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003e100% Authentic Components\u003c\/strong\u003e - Sourced directly from authorized distributors with verification\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFast Delivery\u003c\/strong\u003e - 1-5 day shipping, 7-8 day delivery from Bengaluru warehouse\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Technical Support\u003c\/strong\u003e - 24\/7 assistance via email and WhatsApp\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompetitive Pricing\u003c\/strong\u003e - Best rates with bulk discounts available\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuality Assured\u003c\/strong\u003e - Every unit tested before dispatch\u003c\/p\u003e\n\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio Amplifiers\u003c\/strong\u003e - Driver and output stages\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Switching\u003c\/strong\u003e - Relay and solenoid control circuits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Control\u003c\/strong\u003e - PWM and speed control applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Drivers\u003c\/strong\u003e - High-brightness LED switching\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Control\u003c\/strong\u003e - AC\/DC load switching\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsumer Electronics\u003c\/strong\u003e - Power supply circuits and inverters\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eProject Ideas\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003e DIY Electronics Projects\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuild hobby amplifiers and audio circuits\u003c\/li\u003e\n\u003cli\u003eCreate relay control modules\u003c\/li\u003e\n\u003cli\u003eDesign LED driver circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e Professional Applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial automation and control systems\u003c\/li\u003e\n\u003cli\u003eCommercial power supply design\u003c\/li\u003e\n\u003cli\u003eProfessional audio equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e Learning \u0026amp; Education\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePerfect for electronics students and hobbyists\u003c\/li\u003e\n\u003cli\u003eIdeal for skill development and experimentation\u003c\/li\u003e\n\u003cli\u003eGreat for prototyping and circuit design courses\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\n\u003cp\u003eBD139 Transistor (1 piece or quantity ordered) \n\u003c\/p\u003e\u003cp\u003eTechnical datasheet and pinout diagram\u003c\/p\u003e\n Quick start guide \n\u003cp\u003eSupport contact information\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Highlights\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Performance\u003c\/strong\u003e - Proven design used in countless applications worldwide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Integration\u003c\/strong\u003e - Standard TO-126 package fits most PCB layouts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCost-Effective\u003c\/strong\u003e - Excellent value for medium-power switching applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Availability\u003c\/strong\u003e - Compatible with most circuit designs and schematics\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eIs the BD139 100% authentic?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes, absolutely. All components are sourced from authorized distributors and verified for authenticity before dispatch. We provide authentication certificates upon request.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat warranty coverage is included?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eEvery BD139 comes with a 7-day warranty on manufacturing defects covering manufacturing defects. Defective units can be replaced free of charge.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eHow fast can I receive this?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eStandard delivery is 1-5 business days to most locations across India from our Bengaluru warehouse. Express shipping options are also available.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eDo you provide technical support?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes! Our technical team is available 24\/7 via email and WhatsApp to answer questions, provide datasheets, and assist with circuit design.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat's your return policy?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eWe offer a 7-day return policy on defective items with full refund or replacement at no extra cost. applicable on manufacturing defects only.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eAre bulk discounts available?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes! Orders of 10 or more units qualify for wholesale pricing. Contact us for a custom quote.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eCan I use BD139 in my existing circuit design?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eBD139 is a standard medium-power NPN transistor. If your design calls for an 80V\/1.5A NPN BJT in TO-126 package, it's a direct fit. Consult the datasheet for pin compatibility.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eIs this suitable for beginners?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes! BD139 is widely used in educational projects and is perfect for learning electronics. We provide full documentation and support to help you get started.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eOrder Now\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eFast Shipping Authentic Quality Expert Support\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eFor bulk orders, custom quotes, or technical assistance, contact us anytime!\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eBuy BD139 NPN Bipolar Medium Power Transistor (BJT) 80V 1.5A TO-126 Package Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003eBD139 NPN Bipolar Medium Power Transistor (BJT) 80V 1.5A TO-126 Package\u003c\/strong\u003e online at \u003ca href=\"https:\/\/theengineerstore.in\"\u003eThe Engineer Store\u003c\/a\u003e - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on \u003cstrong\u003eBD139 NPN Bipolar Medium Power Transistor (BJT) 80V 1.5A TO-126 Package\u003c\/strong\u003e with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.\u003c\/p\u003e\n\u003cp\u003eLooking to buy \u003cstrong\u003eBD139 NPN Bipolar Medium Power Transistor (BJT) 80V 1.5A TO-126 Package\u003c\/strong\u003e at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":43774714577059,"sku":"TES-EV8102350","price":7.31,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/4479\/7091\/products\/BD139-3.jpg?v=1701086362","url":"https:\/\/www.theengineerstore.in\/zh-hans\/products\/bd139-npn-bipolar-medium-power-transistor-bjt-80v-1-5a-to-126-package","provider":"The Engineer Store","version":"1.0","type":"link"}