{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BTS550PE3146HKSA1","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BTS550PE3146HKSA1","canonicalUrl":"https://icboms.com/infineon/BTS550PE3146HKSA1","factsUrl":"https://icboms.com/api/mcp/products/BTS550PE3146HKSA1","rawCanonicalId":null},"summary":{"shortDescription":"Infineon PROFET series, BTS550PE3146HKSA1, high-side power switch, 1 output, N-Channel, 2.8mOhm typ Rds(on), 90A max output, 5V~34V load, Non-Inverting, On/Off interface, Through Hole, TO-218-5, -40°C~150°C.","salesMarkdown":"## What this PROFET switch does in a power distribution design The Infineon BTS550PE3146HKSA1 is a single-channel high-side power switch from the PROFET® family, designed to replace a discrete MOSFET plus driver and protection circuitry in 12 V and 24 V automotive and industrial loads. It integrates a vertical N-channel power MOSFET with charge pump, current sensing, and a full set of fault protections — current limiting, open load detection, over-temperature shutdown, and over-voltage clamp — so the load sees a clean on/off command from a logic-level input without external clamp diodes or current-sense resistors. The typical 2.8 mOhm on-resistance is the standout parametric here. At a 10 A continuous load, conduction loss is just 0.28 W — low enough that the TO-218-5 package can dissipate it without a heatsink in still air at 25°C ambient, provided the PCB copper area under the tab is adequate. The 90 A maximum output rating is a pulsed peak; the real continuous current is set by the junction temperature budget, the load voltage, and the thermal resistance of the mounting interface. Infineon has marked the BTS550PE3146HKSA1 as obsolete. No last-time-buy window remains; procurement should plan for a one-time buy or a form-fit-function replacement qualification. ## Load voltage range and application fit The switch handles a 5 V to 34 V load supply, covering automotive 12 V (nominal 13.5 V, load-dump to 34 V), truck 24 V systems, and industrial 24 V PLC buses. The through-hole TO-218-5 package (also known as TO-218AB/5) provides a large copper tab for heatsink attachment, making it a practical choice for high-current retrofit or repair applications where a surface-mount D²PAK would need a thicker PCB. ## Fault protection set — what is covered Four integrated fault protections reduce external component count: fixed current limiting prevents the switch from exceeding a safe current level during a short circuit; open load detection flags a disconnected harness or blown fuse; over-temperature shutdown protects the die if the heatsink is undersized; and over-voltage clamping absorbs load-dump transients up to the 34 V load supply maximum. The input is non-inverting — a logic high turns the output on — and no external Vcc supply is needed; the charge pump runs from the load voltage.","metaTitle":"Infineon BTS550PE3146HKSA1 PROFET High-Side Switch, 2.8 mOhm","metaDescription":"Infineon BTS550PE3146HKSA1 PROFET high-side power switch, 2.8 mOhm Rds(on), 90A peak, 5-34V load. 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)":"2.8mOhm","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":"BTS550","Output Configuration":"High Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C ~ 150°C (TJ)","Current - Output (Max)":"90A","Supplier Device Package":"TO-218AB/5","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.5600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/16b5c94aa1a8fc7169243d3465ba1e51.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is BTS550PE3146HKSA1 obsolete?","answer":"Yes, Infineon has marked the BTS550PE3146HKSA1 as obsolete."},{"question":"What is the replacement for BTS550PE3146HKSA1?","answer":"No official replacement order code has been published by Infineon. For a form-fit-function substitute, evaluate other PROFET™ high-side switches in the TO-218-5 package with similar Rds(on) and load voltage range, but confirm pin compatibility and protection feature set against your specific application requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BTS550PE3146HKSA1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BTS550PE3146HKSA1 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}}