{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SPA04N80C3XKSA1","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"SPA04N80C3XKSA1","canonicalUrl":"https://icboms.com/infineon/SPA04N80C3XKSA1","factsUrl":"https://icboms.com/api/mcp/products/SPA04N80C3XKSA1","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CoolMOS™ series, N-Channel MOSFET, 800 V drain-source, 4 A continuous drain, 1.3 Ohm Rds(on) at 10 V, 31 nC gate charge, TO-220-3 Full Pack through-hole, -55°C to 150°C junction temperature.","salesMarkdown":"## 800 V CoolMOS for offline flyback and PFC stages The SPA04N80C3XKSA1: Built on Infineon's CoolMOS technology, it delivers a maximum on-resistance of 1.3 Ohm at 10 V gate drive with 2.5 A drain current — the figure you use for conduction loss budgeting in the steady-state operating point. ## Rds(on) and gate drive — sizing the conduction and switching loss The 1.3 Ohm maximum Rds(on) is specified at 10 V gate-source with 2.5 A drain current. At reduced gate drive — say 4.5 V from a logic-level output — the on-resistance roughly doubles, so this part expects a 10 V rail for the gate driver to hit the rated conduction loss. The gate threshold voltage maximum is 3.9 V at 240 µA drain current, which means the device is fully enhanced at 10 V but marginal below 5 V. At 100 kHz switching frequency, the gate drive power requirement sits around 31 mW — well within a standard gate driver IC's capability. Infineon has announced end-of-life for this CoolMOS variant, and the final ordering window is closing. New designs should evaluate the current-generation CoolMOS replacement — parts in the same voltage and current class offer lower Rds(on) and improved switching performance. ## Through-hole mounting and thermal interface The TO-220 Full Pack package is a through-hole device that mounts into a standard pitch hole pattern on the PCB. Maximum power dissipation is 38 W at case temperature, which requires a heatsink for any continuous load above a few watts. The PG-TO220-3-31 variant has the standard three-lead form factor with the drain on the center lead.","metaTitle":"Infineon SPA04N80C3XKSA1 CoolMOS N-Ch MOSFET, 800V 4A","metaDescription":"Infineon CoolMOS N-channel MOSFET, 800V drain-source, 4A continuous, 1.3 Ohm Rds(on) at 10V. TO-220 Full Pack. Last Buy - source to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Last Buy","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Infineon Technologies","Series":"CoolMOS™","Package":"Tube","FET Type":"N-Channel","Vgs (Max)":"±20V","Technology":"MOSFET (Metal Oxide)","FET Feature":"-","Mounting Type":"Through Hole","Package / Case":"TO-220-3 Full Pack","Product Status":"Active","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"3.9V @ 240µA","Base Product Number":"SPA04N80","Operating Temperature":"-55°C~150°C(TJ)","Rds On (Max) @ Id, Vgs":"1.3Ohm @ 2.5A, 10V","Power Dissipation (Max)":"38W (Tc)","Supplier Device Package":"PG-TO220-3-31","Gate Charge (Qg) (Max) @ Vgs":"31 nC @ 10 V","Drain to Source Voltage (Vdss)":"800 V","Input Capacitance (Ciss) (Max) @ Vds":"570 pF @ 100 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"4A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9757","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Is SPA04N80C3XKSA1 obsolete?","answer":"The part carries a Last Buy lifecycle status — Infineon has announced end-of-life and the final ordering window is open. It is not yet obsolete, but new designs should migrate to a current-generation CoolMOS alternative."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/SPA04N80C3XKSA1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/SPA04N80C3XKSA1 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}}