{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BTS442E2 E3043","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BTS442E2-E3043","canonicalUrl":"https://icboms.com/infineon/BTS442E2-E3043","factsUrl":"https://icboms.com/api/mcp/products/BTS442E2%20E3043","rawCanonicalId":null},"summary":{"shortDescription":"Infineon PROFET® BTS442E2 E3043, high-side power switch, 1-output, N-channel, 15mOhm Rds(on) typ, 17A max, 4.5V-42V load, TO-220-5, -40°C to 150°C TJ.","salesMarkdown":"## Obsolete PROFET — sourcing through independent channels The BTS442E2 E3043: Sourcing is limited to surplus inventory and broker networks; availability and pricing are confirmed per RFQ on a per-lot basis. ## 15 mOhm Rds(on) — conduction loss floor Typical on-resistance of 15 mOhm at 25°C junction — this is the conduction loss baseline for the high-side switch. At 17 A load current, I²R loss sits at about 4.3 W before derating for temperature rise; the actual junction temperature under load determines the real Rds(on) per the datasheet's normalized curve. ## 4.5 V to 42 V load supply — 12 V and 24 V bus ready The load voltage range spans 4.5 V to 42 V, covering automotive 12 V and 24 V nominal buses with headroom for load-dump transients. No external Vcc supply is needed — the switch is self-powered from the load rail. ## Fault protection set — current limiting, open load, over-temp, over-voltage Integrated fault protection includes fixed current limiting, open-load detection, over-temperature shutdown, and over-voltage clamping. The status flag output signals fault conditions to the system controller. Auto-restart feature allows the switch to re-try after a thermal fault once the junction cools. ## TO-220-5 formed leads — through-hole mounting for power dissipation Housed in a TO-220-5 package with formed leads (PG-TO220-5-11), this part is designed for through-hole mounting on a PCB or heatsink. The large tab provides a low thermal resistance path to the heatsink — critical for dissipating conduction losses at high load currents.","metaTitle":"Infineon BTS442E2 E3043 PROFET High-Side Switch, 15mOhm","metaDescription":"Infineon BTS442E2 E3043 PROFET high-side power switch, 15mOhm Rds(on), 17A, 4.5-42V, TO-220-5.","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":"Auto Restart, Status Flag","Interface":"On/Off","Input Type":"Non-Inverting","Output Type":"N-Channel","Switch Type":"General Purpose","Rds On (Typ)":"15mOhm","Mounting Type":"Through Hole","Package / Case":"TO-220-5 Formed Leads","Product Status":"Obsolete","Voltage - Load":"4.5V ~ 42V","lifecycle_stage":"eol_hot","Fault Protection":"Current Limiting (Fixed), Open Load Detect, Over Temperature, Over Voltage","Number of Outputs":"1","Base Product Number":"BTS442E2","Output Configuration":"High Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C~150°C(TJ)","Current - Output (Max)":"17A","Supplier Device Package":"PG-TO220-5-11","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.6400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3b663412ec6d6aad9f6df64e99e83e4a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does BTS442E2 have a status flag?","answer":"Yes, the BTS442E2 includes a status flag output that signals fault conditions such as over-temperature, open load, or over-voltage events."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BTS442E2-E3043","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BTS442E2-E3043 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}}