{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BTS500851TMBAKSA1","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BTS500851TMBAKSA1","canonicalUrl":"https://icboms.com/infineon/BTS500851TMBAKSA1","factsUrl":"https://icboms.com/api/mcp/products/BTS500851TMBAKSA1","rawCanonicalId":null},"summary":{"shortDescription":"Infineon PROFET series, BTS500851TMBAKSA1, high-side power switch, single output, N-channel, 7.2 mOhm typical Rds(on), 38 A max output, 5 V to 58 V load range, -40°C to 150°C junction, Through Hole P-TO220-7-11.","salesMarkdown":"## 7.2 mOhm Rds(on) — sizing the conduction loss budget The BTS500851TMBAKSA1 is a single-channel high-side power switch from Infineon's PROFET family, built with a vertical N-channel MOSFET and integrated charge pump. ## Load voltage reach: 5 V to 58 V The load supply range spans 5 V to 58 V. The switch operates without a Vcc supply pin — the gate drive is self-powered from the load voltage, which simplifies the BOM by eliminating a separate bias rail. ## Fault protection suite Built-in protection includes fixed current limiting, open load detection, over-temperature shutdown, and over-voltage clamp. The Auto Restart feature means the switch attempts to re-enable after a thermal fault once the junction cools, which suits loads that see transient overloads like lamp inrush or motor start. ## Last Buy — planning the final order window Infineon lists this part with a Last Buy lifecycle status. That means the production end date has been announced and there is a finite window to place final orders through the factory channel. For any BOM line using this switch, the decision is time-sensitive: secure the lifetime buy quantity now, or qualify a drop-in replacement before the last order date passes. ## Package and mounting — TO-220-7 formed leads The P-TO220-7-11 package uses formed through-hole leads with a staggered pinout. The large tab provides the primary thermal path — bolt it to a heatsink or solder it to a board-level copper island. The 7-pin layout is specific to Infineon's PROFET high-side switches; verify the footprint matches the existing PCB land pattern before committing.","metaTitle":"BTS500851TMBAKSA1 Infineon PROFET High-Side Switch","metaDescription":"Infineon BTS500851TMBAKSA1 PROFET high-side power switch, 7.2 mOhm Rds(on), 38 A max output, 5 V to 58 V load range, -40°C to 150°C junction.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Last Buy","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Infineon Technologies","Series":"PROFET®","Package":"Tube","Features":"Auto Restart","Interface":"On/Off","Input Type":"Non-Inverting","Output Type":"N-Channel","Switch Type":"General Purpose","Rds On (Typ)":"7.2mOhm","Mounting Type":"Through Hole","Package / Case":"TO-220-7 Formed Leads","Product Status":"Last Time Buy","Voltage - Load":"5V ~ 58V","lifecycle_stage":"eol_hot","Fault Protection":"Current Limiting (Fixed), Open Load Detect, Over Temperature, Over Voltage","Number of Outputs":"1","Base Product Number":"BTS50085","Output Configuration":"High Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C ~ 150°C (TJ)","Current - Output (Max)":"38A","Supplier Device Package":"P-TO220-7-11","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.3587","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/da0c34a06fa56bb13b8e537b41bb9c69.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the lifecycle status of BTS500851TMBAKSA1?","answer":"The lifecycle status is Last Buy. Infineon has announced the end of production; final orders must be placed within the announced window. After that date, supply shifts to surplus and broker channels only."},{"question":"Is BTS500851TMBAKSA1 obsolete?","answer":"It is in Last Buy status — not yet obsolete, but the production end is scheduled. Orders can still be placed through the final purchase window. After that, availability depends on surplus inventory."},{"question":"What is the Rds(on) of BTS500851TMBAKSA1?","answer":"The typical on-resistance is 7.2 mOhm. This is specified at 25°C junction temperature; actual Rds(on) increases with temperature per the normalised curve in the datasheet, so derate the conduction loss budget for high-temperature operation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BTS500851TMBAKSA1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BTS500851TMBAKSA1 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}}