{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SI4435DYPBF","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"SI4435DYPBF","canonicalUrl":"https://icboms.com/infineon/SI4435DYPBF","factsUrl":"https://icboms.com/api/mcp/products/SI4435DYPBF","rawCanonicalId":null},"summary":{"shortDescription":"International Rectifier HEXFET® SI4435DYPBF, P-Channel MOSFET, 30 V Vdss, 8 A continuous drain, 20 mOhm Rds(on) max at 10 V, 8-SOIC surface-mount package, -55 to 150 °C operating range.","salesMarkdown":"## P-channel load switch with a 20 mOhm ceiling Gate charge is 60 nC at 10 V, so the driver doesn't need a monster gate current, but the 2320 pF input capacitance at 15 V means the gate-drive trace should be kept short and the source impedance low to avoid ringing. ## Where the 30 V and 150 °C ratings matter The 30 V Vdss covers 12 V and 24 V industrial rails, 2S through 6S Li-ion battery stacks, and automotive nominal 12 V systems with load-dump margin. The 2.5 W power dissipation at 25 °C ambient is the package limit in free air; if you are pulling 8 A continuously, you need the PCB copper to sink the heat, or the junction will climb fast. At 8 A and 20 mOhm, conduction loss is 1.28 W — that leaves about 1.2 W of headroom before you hit the package ceiling at 25 °C ambient, so the thermal design is tight but workable with a decent ground-plane pour.","metaTitle":"SI4435DYPBF P-Channel MOSFET, 30V, 8A, 20mOhm, SOIC-8","metaDescription":"SI4435DYPBF P-Channel HEXFET MOSFET, 30V Vdss, 8A continuous drain, 20mOhm Rds(on) max at 10V. Active lifecycle, -55 to 150°C. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Infineon Technologies","Series":"HEXFET®","Package":"Tube","FET Type":"P-Channel","Vgs (Max)":"±20V","Technology":"MOSFET (Metal Oxide)","FET Feature":"-","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"1V @ 250µA","Operating Temperature":"-55°C ~ 150°C (TJ)","Rds On (Max) @ Id, Vgs":"20mOhm @ 8A, 10V","Power Dissipation (Max)":"2.5W (Ta)","Supplier Device Package":"8-SO","Gate Charge (Qg) (Max) @ Vgs":"60 nC @ 10 V","Drain to Source Voltage (Vdss)":"30 V","Input Capacitance (Ciss) (Max) @ Vds":"2320 pF @ 15 V","Drive Voltage (Max Rds On, Min Rds On)":"4.5V, 10V","Current - Continuous Drain (Id) @ 25°C":"8A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2f037eadc609af8671fc9772ba1c8108.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the Rds(on) of SI4435DYPBF?","answer":"The maximum on-resistance is 20 mOhm at 8 A drain current with 10 V gate drive. At 4.5 V gate drive the Rds(on) will be higher — the datasheet curve should be consulted for the exact value at reduced gate voltage."},{"question":"Can SI4435DYPBF be used for battery protection?","answer":"Yes — the 30 V Vdss covers 2S through 6S Li-ion stacks, and the 20 mOhm Rds(on) keeps conduction losses low. The P-channel polarity means it can be placed on the high side without a charge pump. Ensure the 2.5 W package dissipation limit is respected at the expected continuous current."},{"question":"Is SI4435DYPBF RoHS compliant?","answer":"The part number suffix 'PBF' indicates lead-free / RoHS-compliant construction. No further RoHS certificate details are in this listing, but the 'PBF' designation is the standard RoHS indicator for this manufacturer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/SI4435DYPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/SI4435DYPBF 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}}