{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BTS4142NNT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BTS4142NNT","canonicalUrl":"https://icboms.com/infineon/BTS4142NNT","factsUrl":"https://icboms.com/api/mcp/products/BTS4142NNT","rawCanonicalId":null},"summary":{"shortDescription":"Infineon BTS4142NNT high-side power switch, 1 output, N-channel, 150mOhm typical on-resistance, 1.4A max output, 12V to 45V load voltage, PG-SOT223-4 package, -40°C to 125°C operating temperature.","salesMarkdown":"## 150 mOhm high-side switch with Auto Restart The Infineon BTS4142NNT is a single-channel high-side power switch in a PG-SOT223-4 surface-mount package. It switches a 12 V to 45 V load rail through an N-channel MOSFET with a typical on-resistance of 150 mOhm, delivering up to 1.4 A continuous output current. This is a protected switch, not a bare transistor — it integrates current limiting, over-temperature shutdown, and over-voltage clamping. The Auto Restart feature means the switch cycles back on after a fault clears, so it recovers without a system reset in transient overload conditions. The BTS4142NNT is listed as Obsolete by Infineon. ## Fault protection and temperature grade The fixed current-limiting threshold protects the load wiring and the switch itself during a hard short. The input is a simple On/Off logic signal (non-inverting), and no external Vcc supply is needed — the switch is self-powered from the load rail.","metaTitle":"BTS4142NNT High-Side Power Switch, 150mOhm, 1.4A","metaDescription":"Infineon BTS4142NNT high-side power switch, 150mOhm typical on-resistance, 1.4A output, 12V-45V load range. PG-SOT223-4 package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Infineon Technologies","Series":"-","Package":"Tape & Reel (TR)","Features":"Auto Restart","Interface":"On/Off","Input Type":"Non-Inverting","Output Type":"N-Channel","Switch Type":"General Purpose","Rds On (Typ)":"150mOhm","Mounting Type":"Surface Mount","Package / Case":"TO-261-4, TO-261AA","Product Status":"Obsolete","Voltage - Load":"12V ~ 45V","lifecycle_stage":"eol_hot","Fault Protection":"Current Limiting (Fixed), Over Temperature, Over Voltage","Number of Outputs":"1","Base Product Number":"BTS4142","Output Configuration":"High Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C ~ 125°C (TJ)","Current - Output (Max)":"1.4A","Supplier Device Package":"PG-SOT223-4","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.1400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0cbd39b6d1b1226d2013f5a368b48260.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does BTS4142NNT have overcurrent protection?","answer":"Yes, it includes fixed current limiting as part of its fault protection set, along with over-temperature and over-voltage clamping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BTS4142NNT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BTS4142NNT 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}}