{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IRF4905STRLPBF","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"IRF4905STRLPBF","canonicalUrl":"https://icboms.com/infineon/IRF4905STRLPBF","factsUrl":"https://icboms.com/api/mcp/products/IRF4905STRLPBF","rawCanonicalId":null},"summary":{"shortDescription":"Infineon HEXFET IRF4905STRLPBF, P-Channel MOSFET, 55 V Vdss, 42 A continuous drain, 20 mOhm Rds(on) at 10 V, 180 nC gate charge, D2PAK (TO-263AB), -55 to 150 °C.","salesMarkdown":"## P-channel high-side switch — 55 V, 42 A, 20 mOhm The IRF4905STRLPBF: P-Channel MOSFET, 55 V Vdss, 42 A continuous drain, 20 mOhm Rds(on) at 10 V. ## Gate charge and switching speed Total gate charge is 180 nC at 10 V. Input capacitance is 3500 pF at 25 V. ## Thermal budget — 170 W at the case Maximum power dissipation is 170 W at Tc=25 °C, derating to zero at 150 °C junction. The D2PAK's large copper tab is the primary heat path — the PCB copper area under the tab sets the junction-to-ambient thermal resistance. For continuous 42 A operation, the case temperature must stay below 100 °C to keep the junction under 150 °C at full load; that typically requires a heatsink on the tab or a thermal via array to an internal plane. The -55 to 150 °C junction range covers military and industrial environments, but the thermal interface is the practical limit.","metaTitle":"IRF4905STRLPBF HEXFET P-Channel MOSFET, 55V 42A D2PAK","metaDescription":"IRF4905STRLPBF P-Channel HEXFET MOSFET, 55V Vdss, 42A continuous drain, 20mOhm Rds(on) at 10V. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"HEXFET®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Series":"HEXFET®","Package":"Tape & Reel (TR); Cut Tape (CT)","FET Type":"P-Channel","Vgs (Max)":"±20V","Technology":"MOSFET (Metal Oxide)","Mounting Type":"Surface Mount","Package / Case":"TO-263-3, D²Pak (2 Leads + Tab), TO-263AB","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"4V @ 250µA","Operating Temperature":"-55°C ~ 150°C (TJ)","Rds On (Max) @ Id, Vgs":"20mOhm @ 42A, 10V","Power Dissipation (Max)":"170W (Tc)","Supplier Device Package":"D2PAK","Gate Charge (Qg) (Max) @ Vgs":"180 nC @ 10 V","Drain to Source Voltage (Vdss)":"55 V","Input Capacitance (Ciss) (Max) @ Vds":"3500 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"42A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.71","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.71000","currency":"USD"},{"qty":10,"price":"$2.24800","currency":"USD"},{"qty":100,"price":"$1.78910","currency":"USD"},{"qty":800,"price":"$1.51385","currency":"USD"},{"qty":1600,"price":"$1.28448","currency":"USD"},{"qty":2400,"price":"$1.22025","currency":"USD"},{"qty":5600,"price":"$1.17438","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8d259130931c068ff02823aaf8a41b6e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can I use IRF4905STRLPBF in a switching power supply?","answer":"Yes — the 55 V Vdss and 42 A rating suit 48 V bus converters and high-current buck or boost stages. The 180 nC gate charge requires a gate driver capable of several amperes peak to keep switching losses under control at frequencies above 50 kHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/IRF4905STRLPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/IRF4905STRLPBF 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}}