{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STL42P4LLF6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STL42P4LLF6","canonicalUrl":"https://icboms.com/stmicroelectronics/STL42P4LLF6","factsUrl":"https://icboms.com/api/mcp/products/STL42P4LLF6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STripFET™ F6 series, STL42P4LLF6, P-Channel MOSFET, 40V Vdss, 42A Id, 18mOhm Rds(on) @ 5A, 10V, 22nC Qg, 2850pF Ciss, 175°C Tj, Surface Mount PowerFlat™ 5x6.","salesMarkdown":"## P-channel 40 V switch in a PowerFlat 5x6 The STL42P4LLF6 is a P-Channel MOSFET from the STripFET™ F6 series, rated for 40 V drain-source and 42 A continuous drain current at 25°C case temperature. It comes in a surface-mount PowerFlat™ 5x6 package (8-PowerVDFN), which keeps the footprint compact for dense power-stage layouts. The 18 mOhm maximum on-resistance at 5 A and 10 V gate drive gives a low conduction loss figure for a P-channel device at this voltage class. Gate charge is 22 nC maximum at 4.5 V, and input capacitance is 2850 pF at 25 V drain-source. ## Temperature rating and environment Junction temperature is rated to 175°C, which suits applications where ambient heat is high — think engine-bay electronics, industrial motor drives, or sealed power supplies. Maximum power dissipation is 75 W at the case, so a thermal path to a heatsink or PCB copper plane is expected for sustained loads near the 42 A rating.","metaTitle":"STL42P4LLF6 P-Channel MOSFET, 40V 42A, 18mOhm Rds(on)","metaDescription":"STripFET F6 P-Channel MOSFET, 40V, 42A, 18mOhm Rds(on) at 10V. PowerFlat 5x6 package. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"STripFET™ F6","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Series":"STripFET™ F6","Package":"Tape & Reel (TR); Cut Tape (CT)","FET Type":"P-Channel","Vgs (Max)":"±20V","Technology":"MOSFET (Metal Oxide)","Mounting Type":"Surface Mount","Package / Case":"8-PowerVDFN","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"2.5V @ 250µA","Operating Temperature":"175°C (TJ)","Rds On (Max) @ Id, Vgs":"18mOhm @ 5A, 10V","Power Dissipation (Max)":"75W (Tc)","Supplier Device Package":"PowerFlat™ (5x6)","Gate Charge (Qg) (Max) @ Vgs":"22 nC @ 4.5 V","Drain to Source Voltage (Vdss)":"40 V","Input Capacitance (Ciss) (Max) @ Vds":"2850 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"4.5V, 10V","Current - Continuous Drain (Id) @ 25°C":"42A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.58","priceTiers":[{"qty":1,"price":"$1.58000","currency":"USD"},{"qty":10,"price":"$1.30900","currency":"USD"},{"qty":100,"price":"$1.04210","currency":"USD"},{"qty":500,"price":"$0.88174","currency":"USD"},{"qty":1000,"price":"$0.74815","currency":"USD"},{"qty":3000,"price":"$0.71074","currency":"USD"},{"qty":6000,"price":"$0.68402","currency":"USD"},{"qty":9000,"price":"$0.66138","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/61caa8799674c334f8348233ddc3d638.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STL42P4LLF6/alternatives.json"},"ai":{"faq":[{"question":"What is the Rds(on) of STL42P4LLF6?","answer":"The maximum Rds(on) is 18 mOhm at 5 A drain current with 10 V gate-source drive."},{"question":"Is STL42P4LLF6 RoHS compliant?","answer":"Yes, it is ROHS3 compliant."},{"question":"Is STL42P4LLF6 compatible with 5V logic gate drive?","answer":"Yes, the drive voltage range includes 4.5 V for achieving the rated Rds(on), so a 5 V logic-level gate drive is sufficient to turn the device on hard."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STL42P4LLF6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STL42P4LLF6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:51:14.863Z","lastPublished":"2026-07-22T18:51:14.863Z","indexable":true}}