{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BFU660F,115","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"BFU660F115","canonicalUrl":"https://icboms.com/nxp/BFU660F115","factsUrl":"https://icboms.com/api/mcp/products/BFU660F%2C115","rawCanonicalId":null},"summary":{"shortDescription":"NXP BFU660F,115 NPN RF transistor, 21 GHz transition frequency, 5.5 V Vceo, 60 mA Ic, 0.6 dB ~ 1.2 dB noise figure at 1.5 GHz ~ 5.8 GHz, SOT-343F package, surface mount.","salesMarkdown":"## 21 GHz fT — what it buys the front end The NXP BFU660F,115 is a silicon NPN RF transistor with a 21 GHz transition frequency, making it suited for low-noise amplification up through the 5.8 GHz ISM band. The 0.6 dB to 1.2 dB noise figure across 1.5 GHz to 5.8 GHz tells you this part can sit in the first LNA stage without burying the signal in its own noise — a common failure point when a cheaper wideband transistor gets substituted. Collector current is rated 60 mA max and collector-emitter breakdown at 5.5 V, so keep it in the small-signal role; it is not built for power stages. ## SOT-343F footprint — what the rework bench needs to know Package is SOT-343F, a 4-lead leadless plastic package with the supplier device code 4-DFP. The leads are flush with the body — no visible gull-wing to inspect with a loupe. On the rework bench, hot-air profile matters: the small thermal mass heats fast, and the exposed pad (if present) needs a via stitch to the ground plane for the thermal path. ## Active lifecycle — no LTB scramble Product status is Active, so this transistor is still in normal production. No last-time-buy notice, no end-of-life clock ticking. No need to stockpile or hunt for a second source today, but if you are qualifying a dual-source option, the closest pin-compatible sibling in the same NXP family would share the SOT-343F footprint and similar fT — verify the noise figure and gain match your band before swapping.","metaTitle":"NXP BFU660F,115 RF Transistor NPN 21 GHz SOT-343F","metaDescription":"NXP BFU660F,115 NPN RF transistor, 21 GHz fT, 0.6 dB NF at 1.5 GHz, 5.5 V Vceo, 60 mA Ic, SOT-343F package. Active lifecycle, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Gain":"12dB ~ 21dB","Package":"Tape & Reel (TR); Cut Tape (CT)","Power - Max":"225mW","Mounting Type":"Surface Mount","Package / Case":"SOT-343F","Transistor Type":"NPN","lifecycle_stage":"eol_hot","Operating Temperature":"150°C (TJ)","Frequency - Transition":"21GHz","Supplier Device Package":"4-DFP","Noise Figure (dB Typ @ f)":"0.6dB ~ 1.2dB @ 1.5GHz ~ 5.8GHz","Current - Collector (Ic) (Max)":"60mA","DC Current Gain (hFE) (Min) @ Ic, Vce":"90 @ 10mA, 2V","Voltage - Collector Emitter Breakdown (Max)":"5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.65","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.67000","currency":"USD"},{"qty":10,"price":"$0.57600","currency":"USD"},{"qty":100,"price":"$0.43010","currency":"USD"},{"qty":500,"price":"$0.33796","currency":"USD"},{"qty":1000,"price":"$0.26115","currency":"USD"},{"qty":3000,"price":"$0.24286","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/dda4bd9d8058c197364f448735829170.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the frequency rating of BFU660F?","answer":"The BFU660F has a transition frequency (fT) of 21 GHz. This is the frequency at which the current gain drops to unity, and it defines the usable bandwidth for amplification. Practical circuits will see useful gain well into the 5.8 GHz band."},{"question":"What is the noise figure of BFU660F?","answer":"The noise figure is specified as 0.6 dB to 1.2 dB, measured at 1.5 GHz to 5.8 GHz. At the lower end of that band, the 0.6 dB figure makes this transistor a strong candidate for a low-noise amplifier front end where signal-to-noise ratio is critical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/BFU660F115","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/BFU660F115 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}