{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AFT09MS031GNR1","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"AFT09MS031GNR1","canonicalUrl":"https://icboms.com/nxp/AFT09MS031GNR1","factsUrl":"https://icboms.com/api/mcp/products/AFT09MS031GNR1","rawCanonicalId":null},"summary":{"shortDescription":"NXP AFT09MS031GNR1 LDMOS RF transistor, 40V rated, 870MHz, 31W output, 17.2dB gain, TO-270BA surface mount, ROHS3 compliant.","salesMarkdown":"## RF power transistor for 870 MHz base station and ISM applications The NXP AFT09MS031GNR1 is an LDMOS RF power transistor rated for 40 V drain voltage, delivering 31 W output power at 870 MHz with a gain of 17.2 dB. It comes in a TO-270BA surface-mount package with a gull-wing lead form (TO-270-2 GULL). This part is designed for 870 MHz band applications such as cellular base station final stages, ISM-band RF generators, and industrial heating or plasma drivers where linearity and efficiency at moderate power levels are required. ## 17.2 dB gain and 31 W output — what these mean for the RF stage At 870 MHz and a test bias of 13.6 V with 500 mA quiescent current, the 17.2 dB gain figure means a drive level of roughly 0.6 W at the input yields the full 31 W output. This gain is typical for a single-stage LDMOS device at this frequency and power class, so a driver stage with moderate output (1–2 W) can directly feed this transistor without an intermediate gain block. The 31 W output is the saturated or linear power capability depending on the class of operation — for class AB linear service (common in cellular PA stages), the usable linear power will be a few dB below that figure, so budget the back-off when sizing the stage. ## Package and mounting — TO-270BA surface-mount gull-wing The TO-270BA package (TO-270-2 GULL) is a two-lead surface-mount package with a gull-wing lead form and an exposed metal tab for thermal and electrical connection to the drain. The mounting type is surface mount, so it reflows onto a standard PCB footprint. Without that thermal path, junction temperature will exceed the safe limit at 31 W continuous output.","metaTitle":"NXP AFT09MS031GNR1 LDMOS RF Transistor, 31W, 870MHz","metaDescription":"NXP AFT09MS031GNR1 LDMOS RF transistor, 31W output at 870MHz, 17.2dB gain, 40V rated, TO-270BA surface mount. Active lifecycle, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Gain":"17.2dB","Package":"Tape & Reel (TR); Cut Tape (CT)","Frequency":"870MHz","Mounting Type":"Surface Mount","Current - Test":"500 mA","Package / Case":"TO-270BA","Power - Output":"31W","Voltage - Test":"13.6 V","Transistor Type":"LDMOS","Voltage - Rated":"40 V","lifecycle_stage":"eol_hot","Supplier Device Package":"TO-270-2 GULL"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$19.36","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$19.36000","currency":"USD"},{"qty":10,"price":"$17.79500","currency":"USD"},{"qty":25,"price":"$17.05720","currency":"USD"},{"qty":100,"price":"$15.30540","currency":"USD"},{"qty":500,"price":"$15.30536","currency":"USD"}]},"links":{"datasheetUrl":"https://www.nxp.com/","sourceUrl":null},"ai":{"faq":[{"question":"What is AFT09MS031GNR1's gain at 870 MHz?","answer":"The listed gain is 17.2 dB at 870 MHz with a test voltage of 13.6 V and a test current of 500 mA. This is the typical small-signal gain under those bias conditions."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/AFT09MS031GNR1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/AFT09MS031GNR1 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}}