{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IPS031","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"IPS031","canonicalUrl":"https://icboms.com/infineon/IPS031","factsUrl":"https://icboms.com/api/mcp/products/IPS031","rawCanonicalId":null},"summary":{"shortDescription":"Infineon IPS031 low-side N-channel power switch, TO-220-3, 45 mOhm typical Rds(on), 3.1 A max output, 35 V load max, -40°C to 150°C junction temperature.","salesMarkdown":"## What the 45 mOhm Rds(on) means for your load budget The IPS031 is a single-channel low-side N-channel power switch from Infineon, packaged in a TO-220-3 (TO-220AB) through-hole package. Its 45 mOhm typical on-resistance at 25°C sets the conduction loss floor: at 3.1 A continuous output the dissipation is roughly 0.43 W before any derating. That number climbs with junction temperature — the datasheet's normalised curve is the real thermal anchor, not the room-temperature typical. ## Fault protection that saves external components Fixed current limiting and over-temperature shutdown are built in — no external sense resistor or thermal sensor needed. The input is a simple On/Off non-inverting logic signal; no Vcc supply is required, so the switch can be driven directly from a GPIO or a relay coil driver. ## Temperature grade — wider than typical industrial The TO-220 package with a copper tab lets you bolt it to a heatsink or chassis — the thermal pad area under the tab sets the junction-to-case resistance. ## Obsolete — sourcing reality and what to do Infineon lists the IPS031 as Obsolete.","metaTitle":"IPS031 Low-Side Power Switch, 45 mOhm, TO-220-3, Obsolete","metaDescription":"IPS031 low-side N-channel power switch, 45 mOhm Rds(on), 3.1 A output, TO-220-3. No direct replacement on record.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Infineon Technologies","Series":"-","Package":"Tube","Features":"-","Interface":"On/Off","Input Type":"Non-Inverting","Output Type":"N-Channel","Switch Type":"General Purpose","Rds On (Typ)":"45mOhm","Mounting Type":"Through Hole","Package / Case":"TO-220-3","Product Status":"Obsolete","Voltage - Load":"35V (Max)","lifecycle_stage":"eol_hot","Fault Protection":"Current Limiting (Fixed), Over Temperature","Number of Outputs":"1","Base Product Number":"IPS031","Output Configuration":"Low Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C ~ 150°C (TJ)","Current - Output (Max)":"3.1A","Supplier Device Package":"TO-220AB","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.9500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/684d81593e30ba5b1984420e73e31e95.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/IPS031/alternatives.json"},"ai":{"faq":[{"question":"Is IPS031 obsolete?","answer":"Yes, Infineon lists the IPS031 as Obsolete. No official replacement part number has been published."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/IPS031","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/IPS031 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}