{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SPA15N65C3XKSA1","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"SPA15N65C3XKSA1","canonicalUrl":"https://icboms.com/infineon/SPA15N65C3XKSA1","factsUrl":"https://icboms.com/api/mcp/products/SPA15N65C3XKSA1","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CoolMOS™ SPA15N65C3XKSA1, N-Channel MOSFET, 650 V drain-source, 15 A continuous drain, 280 mOhm Rds(on) at 10 V, TO-220-3 Full Pack through-hole package, -55°C to 150°C junction temperature.","salesMarkdown":"## 650 V / 15 A CoolMOS™ — what this N-channel MOSFET brings to a PFC or LLC stage The SPA15N65C3XKSA1: It comes in a TO-220-3 Full Pack through-hole package (PG-TO220-3-31), which means the back of the package is fully isolated — no insulating pad needed against the heatsink, a real assembly-time saver in high-voltage offline supplies. The 34 W power dissipation ceiling (Tc) means the thermal path to the heatsink needs attention at high switching frequencies. The SPA15N65C3XKSA1 is marked obsolete by Infineon. In a shortage cycle this part would command a spot premium because the CoolMOS™ C3 generation has wide installed base in PFC and LLC designs; right now the procurement move is to qualify a cross — either a later CoolMOS™ C7 or P7 device in the same TO-220 Full Pack footprint, or a pin-compatible competitor like an ST STF15N65M5 or an On Semi NTP15N65. The datasheet is still available from Infineon's archive, but no new production is running. At 280 mOhm maximum with 9.4 A drain and 10 V gate drive, the conduction loss at 9.4 A is about 25 W — which eats into the 34 W package power limit. That means the heatsink design is not optional; the Full Pack case helps with isolation but the thermal resistance junction-to-case still needs a good thermal interface to keep junction temperature under 150°C. The 3.9 V maximum gate threshold at 675 µA drain current is typical for CoolMOS™ — the device turns on fully at 10 V, but the threshold is low enough that a gate-drive undervoltage lockout set above 8 V is prudent to avoid linear-mode operation during startup.","metaTitle":"Infineon SPA15N65C3XKSA1 CoolMOS™ N-Ch 650V 15A MOSFET","metaDescription":"Infineon SPA15N65C3XKSA1 CoolMOS™ N-channel MOSFET, 650V drain-source, 15A continuous, 280mOhm Rds(on). TO-220-3 Full Pack.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","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":"Obsolete","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"3.9V @ 675µA","Base Product Number":"SPA15N65","Operating Temperature":"-55°C~150°C(TJ)","Rds On (Max) @ Id, Vgs":"280mOhm @ 9.4A, 10V","Power Dissipation (Max)":"34W (Tc)","Supplier Device Package":"PG-TO220-3-31","Gate Charge (Qg) (Max) @ Vgs":"63 nC @ 10 V","Drain to Source Voltage (Vdss)":"650 V","Input Capacitance (Ciss) (Max) @ Vds":"1600 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"15A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Is SPA15N65C3XKSA1 obsolete?","answer":"Yes, Infineon lists the SPA15N65C3XKSA1 as obsolete. No new production is running; procurement goes through the surplus and broker channel."},{"question":"What is the replacement for SPA15N65C3XKSA1?","answer":"No official successor is recorded. For a pin-compatible cross in the same TO-220 Full Pack footprint, consider later CoolMOS™ C7 or P7 devices from Infineon, or an ST STF15N65M5 or On Semi NTP15N65 — verify Rds(on) and gate charge against your switching frequency and thermal budget before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/SPA15N65C3XKSA1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/SPA15N65C3XKSA1 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}}