{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BTS442E2BKSA1","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BTS442E2BKSA1","canonicalUrl":"https://icboms.com/infineon/BTS442E2BKSA1","factsUrl":"https://icboms.com/api/mcp/products/BTS442E2BKSA1","rawCanonicalId":null},"summary":{"shortDescription":"Infineon PROFET® BTS442E2BKSA1, single-channel high-side power switch, 15 mOhm typical Rds(on), 17 A max output, 4.5 V to 42 V load voltage, TO-220-5 formed leads, -40°C to 150°C junction temperature.","salesMarkdown":"## PROFET high-side switch for 12 V / 24 V loads The Infineon BTS442E2BKSA1 is a single-channel high-side power switch from the PROFET® family, designed to drive resistive, inductive, and lamp loads in automotive and industrial environments. It integrates a vertical N-channel power MOSFET with a charge pump, allowing logic-level On/Off control (non-inverting input) without requiring a separate Vcc supply rail. The load voltage range spans 4.5 V to 42 V, covering nominal 12 V and 24 V systems with margin for load-dump transients. The single output is rated for a continuous 17 A maximum, with a typical on-resistance of 15 mOhm at 25°C junction. ## 15 mOhm Rds(on) — conduction loss and thermal budget At 17 A, the 15 mOhm typical Rds(on) produces about 4.3 W of conduction loss at 25°C junction. The TO-220-5 package with its exposed metal tab can dissipate this into a heatsink, but the junction temperature must stay within the -40°C to 150°C operating range. Derate the continuous current above 25°C ambient per the datasheet curve; the 150°C ceiling is the absolute limit, not a normal operating target. ## Fault protection set reduces external circuitry The BTS442E2BKSA1 integrates current limiting (fixed threshold), open-load detection, over-temperature shutdown, and over-voltage clamping. The Status Flag output signals fault conditions to the microcontroller. These protections eliminate the need for a separate sense resistor, comparator, or discrete clamp diode in many automotive load-switching applications. ## Obsolete — sourcing through independent distribution Infineon lists the BTS442E2BKSA1 as Obsolete. No official successor or pin-compatible replacement is recorded in the available lifecycle data.","metaTitle":"Infineon BTS442E2BKSA1 PROFET High-Side Switch, 15 mOhm","metaDescription":"Infineon BTS442E2BKSA1 PROFET high-side power switch, 15 mOhm Rds(on), 17 A max output, 4.5-42 V load range, 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":"BTS442","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":"$1.1600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/128ee3418c68fc4ea87460cc4231bc4b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the replacement or equivalent for BTS442E2BKSA1?","answer":"No official successor or pin-compatible replacement is recorded in the available lifecycle data for the BTS442E2BKSA1. A cross-reference search against the PROFET family may identify a functionally similar part, but pin compatibility and protection feature set must be verified against the specific BOM requirements."},{"question":"Can BTS442E2BKSA1 handle 12V or 24V automotive loads?","answer":"Yes. The 17 A maximum output and 15 mOhm typical Rds(on) suit it for driving headlamps, solenoids, relays, and other moderate-current loads."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BTS442E2BKSA1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BTS442E2BKSA1 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}}