{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BTS555","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BTS555","canonicalUrl":"https://icboms.com/infineon/BTS555","factsUrl":"https://icboms.com/api/mcp/products/BTS555","rawCanonicalId":null},"summary":{"shortDescription":"Infineon PROFET® BTS555, high-side power switch, single N-channel output, 1.9 mOhm typ Rds(on), 128 A max output, 5V–34V load, TO-218-5 through-hole, -40°C to 150°C.","salesMarkdown":"The BTS555 is listed as obsolete by Infineon. Existing BOM lines that call out this part must be sourced through the surplus or broker channel — there is no official last-time-buy window remaining. ## 1.9 mOhm Rds(on) — the headline rating The BTS555 is a single-channel high-side N-channel power switch from Infineon's PROFET series. Its headline spec is a typical on-resistance of 1.9 mOhm, which is extremely low — this part is designed to switch very high currents with minimal conduction loss. The maximum continuous output current is rated at 128 A, though in practice the thermal capability of the TO-218-5 package will limit sustained current well below that figure, especially at elevated ambient temperatures. ## Voltage range and protection features The load voltage range spans 5 V to 34 V, covering common automotive and industrial supply rails. The switch includes a full suite of fault protections: current limiting (fixed), open-load detection, over-temperature shutdown, and over-voltage clamping. These built-in protections reduce external component count and simplify the design of rugged power distribution systems. ## Package and temperature grade The BTS555 comes in a TO-218-5 through-hole package (supplier device package TO-218AB/5). The through-hole package is field-serviceable — a technician with a soldering iron can swap it on site without hot air.","metaTitle":"BTS555 Infineon PROFET High-Side Switch, 1.9 mOhm, 128 A","metaDescription":"BTS555 Infineon PROFET high-side power switch, 1.9 mOhm Rds(on), 128 A max output, TO-218-5.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Infineon Technologies","Series":"PROFET®","Package":"Tube","Features":"-","Interface":"On/Off","Input Type":"Non-Inverting","Output Type":"N-Channel","Switch Type":"General Purpose","Rds On (Typ)":"1.9mOhm","Mounting Type":"Through Hole","Package / Case":"TO-218-5","Product Status":"Obsolete","Voltage - Load":"5V ~ 34V","lifecycle_stage":"eol_hot","Fault Protection":"Current Limiting (Fixed), Open Load Detect, Over Temperature, Over Voltage","Number of Outputs":"1","Base Product Number":"BTS555","Output Configuration":"High Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C ~ 150°C (TJ)","Current - Output (Max)":"128A","Supplier Device Package":"TO-218AB/5","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.9600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/675fc6d83d05c4b2a933db9bb46cc086.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BTS555","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BTS555 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}}