The NJW0281G from onsemi is a high-power NPN transistor rated at 15A\/250V in a TO-264 package, designed for audio power amplifier output stages and high-power switching applications.<\/p>\n
| \u5305\u88c5<\/td>\n | TO-264<\/td>\n<\/tr>\n<\/table>\n\u7279\u70b9<\/h2>\n\u5e94\u7528<\/h2>\nProduct Overview The NJW0281G from onsemi is a high-power NPN transistor rated at 15A\/250V in a TO-264 package, designed for audio power amplifier output stages and high-power switching applications. Key Specifications Package TO-264 Features See datasheet for complete specifications Industry-standard package Applications Industrial control Consumer electronics Communication equipment Automotive electronics<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[57,13],"tags":[],"chip_brand":[144],"class_list":["post-5551","post","type-post","status-publish","format-standard","hentry","category-insulated-gate-bipolar-transistors-igbt","category-integrated-circuits-ics","chip_brand-on"],"acf":{"brief_explanation":"NPN power transistor, 15A, 250V, TO-264","date_code":"","package_case":"TO-264","in_stock":8912,"datasheet":"https:\/\/www.onsemi.com\/pub\/Collateral\/NJW0281-D.PDF","price":"$3.50 @ 1ku","product_introduction":"The NJW0281G from onsemi is a high-power NPN transistor rated at 15A\/250V in a TO-264 package, designed for audio power amplifier output stages and high-power switching applications.","working_principle":"The NJW0281G is a PNP power transistor from NJR (New Japan Radio) in TO-264 package, rated at 250V VCEO, 15A IC, and 130W total dissipation at Tc=25C. It is designed for high-fidelity audio power amplifier output stages, typically used in complementary push-pull pairs with the NPN NJW0302G. The transistor features a wide, flat frequency response: the transition frequency (fT) is 30MHz at 1A, and the current gain bandwidth is maintained up to 100kHz, ensuring low distortion at audio frequencies. The DC current gain (hFE) is specified at 80-160 (rank G) at 1A, and remains relatively flat over the 100mA-5A range, minimizing crossover distortion in push-pull operation. The collector-emitter saturation voltage is 0.3V at 1A (IB=50mA), important for efficiency in linear amplifiers. In a typical Class-AB audio amplifier, the NJW0281G handles the positive half of the audio signal (for PNP, the negative rail), biased at approximately 50mA quiescent current to eliminate crossover distortion. The SOA (Safe Operating Area) is critical for audio: at 100V VCE, the DC current limit is approximately 1A (limited by second breakdown), while at 10V VCE, the limit is the full 15A. The TO-264 package provides low thermal resistance (1.1C\/W junction-to-case) and large flange area for heatsink mounting. The 130W rating at Tc=25C derates to approximately 65W at Tc=85C. Applications include: high-power audio amplifiers (100W+ per channel), active subwoofer drivers, and industrial linear regulators.","pin_description":"
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