{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BFP420H6801XTSA1","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BFP420H6801XTSA1","canonicalUrl":"https://icboms.com/infineon/BFP420H6801XTSA1","factsUrl":"https://icboms.com/api/mcp/products/BFP420H6801XTSA1","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies BFP420 series NPN RF transistor, BFP420H6801XTSA1, 21dB gain, 25GHz transition frequency, 1.1dB noise figure at 1.8GHz, 160mW max power, SC-82A SOT-343 package, surface mount.","salesMarkdown":"## Gain, noise, and the 5 V ceiling The BFP420H6801XTSA1: With a collector-emitter breakdown of 5 V and a max collector current of 35 mA, this transistor is designed for low-voltage RF stages — think battery-powered or regulated 3.3 V / 5 V front-ends where the supply rail is tight. The 21 dB gain at 1.8 GHz means a single stage can lift a weak signal from an antenna or SAW filter to a level the mixer or LNA input can work with, without needing a second gain block. The 1.1 dB noise figure at 1.8 GHz is the spec that decides fit for a receiver input: a lower noise figure here directly improves the cascaded system NF. The 60 minimum DC current gain at 20 mA, 4 V confirms the transistor has enough beta to bias cleanly in a common-emitter stage without excessive base current loading the bias network. ## SC-82A SOT-343 — field-swap reality The SC-82A (SOT-343) package is a standard 4-pin surface-mount footprint, 1.25 mm pitch on the collector/emitter side. ## RoHS3 and temp rating ROHS3 compliant and rated for a 150 °C junction temperature — this transistor handles the self-heating from 160 mW dissipation in a small package without derating down to an 85 °C ambient. No special storage or handling beyond standard MSL precautions.","metaTitle":"BFP420H6801XTSA1 Infineon NPN RF Transistor, 21dB Gain","metaDescription":"Active Infineon BFP420H6801XTSA1 NPN RF transistor, 21dB gain, 25GHz fT, 1.1dB noise figure at 1.8GHz. SC-82A SOT-343 package. ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Gain":"21dB","Package":"Tape & Reel (TR); Cut Tape (CT)","Power - Max":"160mW","Mounting Type":"Surface Mount","Package / Case":"SC-82A, SOT-343","Transistor Type":"NPN","lifecycle_stage":"eol_hot","Operating Temperature":"150°C (TJ)","Frequency - Transition":"25GHz","Supplier Device Package":"PG-SOT343-3D","Noise Figure (dB Typ @ f)":"1.1dB @ 1.8GHz","Current - Collector (Ic) (Max)":"35mA","DC Current Gain (hFE) (Min) @ Ic, Vce":"60 @ 20mA, 4V","Voltage - Collector Emitter Breakdown (Max)":"5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.61","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.61000","currency":"USD"},{"qty":10,"price":"$0.51900","currency":"USD"},{"qty":25,"price":"$0.48480","currency":"USD"},{"qty":100,"price":"$0.38770","currency":"USD"},{"qty":250,"price":"$0.36004","currency":"USD"},{"qty":500,"price":"$0.30464","currency":"USD"},{"qty":1000,"price":"$0.23540","currency":"USD"},{"qty":3000,"price":"$0.21463","currency":"USD"},{"qty":6000,"price":"$0.20078","currency":"USD"},{"qty":15000,"price":"$0.18694","currency":"USD"},{"qty":30000,"price":"$0.17724","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3fb0e0d10ce5091dd3b7dc04c877e65c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source for BFP420H6801XTSA1?","answer":"The BFP640FH6327XTSA1 (BFP640) is a close peer: it offers higher gain (23 dB) and a higher transition frequency (40 GHz) in the same SOT-343 package, but its supply voltage is 4.5 V vs 5 V and its noise figure is lower (0.65 dB typ at 1.8 GHz). The BFP420 is the better fit for a 5 V rail design where the extra headroom matters; the BFP640 suits lower-voltage, lower-noise front-ends."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BFP420H6801XTSA1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BFP420H6801XTSA1 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}}