{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BFP843FH6327XTSA1","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BFP843FH6327XTSA1","canonicalUrl":"https://icboms.com/infineon/BFP843FH6327XTSA1","factsUrl":"https://icboms.com/api/mcp/products/BFP843FH6327XTSA1","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies BFP843FH6327XTSA1 RF NPN transistor, 2.25 V Vce, 55 mA Ic, 13.5 dB ~ 25 dB gain, 0.8 dB ~ 1.7 dB NF, PG-TSFP-4-1 package, Surface Mount.","salesMarkdown":"## Noise figure and gain — the selection anchors The BFP843FH6327XTSA1: Noise figure spans 0.8 dB to 1.7 dB across 450 MHz to 10 GHz. At 450 MHz the 0.8 dB floor means the transistor adds negligible noise to a GPS or cellular LNA input stage; at 10 GHz the 1.7 dB figure still keeps the cascaded NF below 2 dB in a well-matched design. Gain ranges from 13.5 dB to 25 dB over the same frequency band. The 25 dB peak at the low end suits a single-stage LNA for ISM-band or cellular low-band; the 13.5 dB at 10 GHz means a two-stage chain is needed to reach typical system gain targets in Ku-band downconverters. Collector-emitter breakdown is 2.25 V maximum. This sets the supply rail ceiling at 1.8 V to 2.0 V for linear operation — the transistor is a low-voltage SiGe device, not a general-purpose RF part. The 55 mA maximum collector current supports bias points up to 30-40 mA for moderate linearity in a common-emitter LNA. DC current gain (hFE) is 150 minimum at 15 mA, 1.8 V. This guarantees a beta floor for bias network design — a base current of 100 µA at the 15 mA bias point is predictable across temperature and process corners. ## Package and thermal budget for the BOM Housed in the PG-TSFP-4-1 package, a 4-lead flat-lead SMD with a small footprint suited for dense RF layouts. The 150 °C junction temperature rating provides headroom: at 125 mW maximum power dissipation and a typical RthJA around 300 K/W, the junction rise stays under 40 °C above ambient, keeping the die below 110 °C in a 70 °C enclosure. Surface-mount assembly with standard reflow profiles — the flat-lead package requires no special stencil aperture beyond the manufacturer's footprint recommendation.","metaTitle":"Infineon BFP843FH6327XTSA1 RF NPN Transistor, 2.25V","metaDescription":"Infineon BFP843FH6327XTSA1 RF NPN transistor, 2.25V Vce, 55mA Ic, 0.8dB NF at 450MHz. Active production, ROHS3 compliant. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Gain":"13.5dB ~ 25dB","Package":"Tape & Reel (TR); Cut Tape (CT)","Power - Max":"125mW","Mounting Type":"Surface Mount","Package / Case":"4-SMD, Flat Leads","Transistor Type":"NPN","lifecycle_stage":"eol_hot","Operating Temperature":"150°C (TJ)","Supplier Device Package":"PG-TSFP-4-1","Noise Figure (dB Typ @ f)":"0.8dB ~ 1.7dB @ 450MHz ~ 10GHz","Current - Collector (Ic) (Max)":"55mA","DC Current Gain (hFE) (Min) @ Ic, Vce":"150 @ 15mA, 1.8V","Voltage - Collector Emitter Breakdown (Max)":"2.25V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.45","priceTiers":[{"qty":1,"price":"$0.45000","currency":"USD"},{"qty":3000,"price":"$0.20499","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7c24fb1eaf27994f9027051b51bd4d91.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BFP843FH6327XTSA1/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BFP843FH6327XTSA1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BFP843FH6327XTSA1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}