{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BTS442E2","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BTS442E2","canonicalUrl":"https://icboms.com/infineon/BTS442E2","factsUrl":"https://icboms.com/api/mcp/products/BTS442E2","rawCanonicalId":null},"summary":{"shortDescription":"Infineon PROFET® BTS442E2, automotive AEC-Q100 high-side switch, 15 mOhm typical on-resistance, 21A max output, 4.5V to 42V load supply, TO-220-5 through-hole package, -40°C to 150°C junction temperature.","salesMarkdown":"## Automotive high-side switch with PROFET protection suite The switch is self-protected with current limiting (fixed), open-load detection, over-temperature shutdown, and over-voltage clamping — covering the fault conditions expected in automotive power distribution and lighting systems. ## 15 mOhm Rds(on) and 21 A current ceiling At 15 mOhm typical, conduction loss at 10 A is only 1.5 W — the TO-220-5 package with its exposed metal tab can sink that into a heatsink or chassis ground plane. The 21 A maximum output rating gives headroom for motor inrush or lamp cold-start surges. The load supply range from 4.5 V to 42 V covers nominal 12 V and 24 V automotive systems, with margin for load-dump transients up to the over-voltage clamp threshold. ## Through-hole TO-220-5 for high-current routing The PG-TO220-5-11 package has five formed leads — the large tab is the drain connection and the primary thermal path. Through-hole mounting lets the PCB designer run wide copper traces directly to the load and ground terminals without the current-density limits of a surface-mount footprint.","metaTitle":"Infineon BTS442E2 PROFET High-Side Switch, 15 mOhm, TO-220-5","metaDescription":"Infineon BTS442E2 automotive AEC-Q100 PROFET high-side switch, 15 mOhm Rds(on), 21A max output, -40 to 150°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Infineon Technologies","Series":"Automotive, AEC-Q100, PROFET®","Package":"Bulk","Features":"Auto Restart, Status Flag","Interface":"Logic","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":"Active","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","Output Configuration":"High Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C~150°C(TJ)","Current - Output (Max)":"21A","Supplier Device Package":"PG-TO220-5-11","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/93ec8fbdf30a150e3f845728063dbfa3.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BTS442E2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BTS442E2 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}}