{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BFU550WX","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"BFU550WX","canonicalUrl":"https://icboms.com/nxp/BFU550WX","factsUrl":"https://icboms.com/api/mcp/products/BFU550WX","rawCanonicalId":null},"summary":{"shortDescription":"NXP Semiconductors BFU550WX NPN RF transistor, Automotive AEC-Q101, 11 GHz fT, 18 dB gain, 0.6 dB NF at 900 MHz, SC-70 SOT-323 package, surface mount.","salesMarkdown":"## RF front-end LNA transistor for 900 MHz bands The NXP BFU550WX is an NPN RF transistor in a SC-70 (SOT-323) package, designed for low-noise amplifier stages up to 11 GHz. With a transition frequency of 11 GHz and a typical noise figure of 0.6 dB at 900 MHz, it fits front-end LNA positions in cellular, ISM-band, and GPS receivers where the first-stage noise floor sets the system sensitivity. The 18 dB gain at the 900 MHz band means a single stage lifts a -100 dBm antenna signal above the mixer noise floor without needing a second pre-amp. ## Automotive temperature grade and bias stability This covers the under-hood ambient of an engine bay ECU or the thermal cycling inside a headlamp module — the 150°C TJ ceiling gives margin when the transistor sits near a 105°C ambient with self-heating from the 450 mW power dissipation. DC current gain (hFE) is specified at a minimum of 60 at Ic=15 mA and Vce=8 V. This tight gain floor means the bias network stays predictable across temperature and lot variation — a common pain point when a batch of RF transistors drifts and the LNA gain flatness shifts out of spec.","metaTitle":"BFU550WX NPN RF Transistor, 11 GHz fT, 18 dB Gain, SC-70","metaDescription":"NXP BFU550WX NPN RF transistor, 11 GHz transition frequency, 18 dB gain, 0.6 dB NF at 900 MHz. AEC-Q101 automotive grade. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q101","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Gain":"18dB","Series":"Automotive, AEC-Q101","Package":"Tape & Reel (TR); Cut Tape (CT)","Power - Max":"450mW","Mounting Type":"Surface Mount","Package / Case":"SC-70, SOT-323","Transistor Type":"NPN","lifecycle_stage":"eol_hot","Operating Temperature":"-40°C ~ 150°C (TJ)","Frequency - Transition":"11GHz","Supplier Device Package":"SC-70","Noise Figure (dB Typ @ f)":"0.6dB @ 900MHz","Current - Collector (Ic) (Max)":"50mA","DC Current Gain (hFE) (Min) @ Ic, Vce":"60 @ 15mA, 8V","Voltage - Collector Emitter Breakdown (Max)":"12V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.86","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.86000","currency":"USD"},{"qty":10,"price":"$0.75900","currency":"USD"},{"qty":25,"price":"$0.71280","currency":"USD"},{"qty":100,"price":"$0.58190","currency":"USD"},{"qty":250,"price":"$0.54048","currency":"USD"},{"qty":500,"price":"$0.46000","currency":"USD"},{"qty":1000,"price":"$0.38180","currency":"USD"},{"qty":3000,"price":"$0.38180","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/80ccc79bcfc8fca004af9d395f2c76eb.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the noise figure of the BFU550WX at 900 MHz?","answer":"The typical noise figure is 0.6 dB at 900 MHz. This low NF makes it suitable for the first LNA stage in 900 MHz ISM-band receivers where every tenth of a dB of noise figure directly reduces the receiver sensitivity."},{"question":"What package does the BFU550WX come in?","answer":"The BFU550WX is supplied in an SC-70 (SOT-323) surface-mount package. The supplier device package is SC-70. It is available in Tape & Reel (TR) and Cut Tape (CT) options."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/BFU550WX","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/BFU550WX when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}