{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BSP76E6433HUMA1","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BSP76E6433HUMA1","canonicalUrl":"https://icboms.com/infineon/BSP76E6433HUMA1","factsUrl":"https://icboms.com/api/mcp/products/BSP76E6433HUMA1","rawCanonicalId":null},"summary":{"shortDescription":"Infineon HITFET® BSP76E6433HUMA1, low-side N-channel power switch, 1.4 A max output, 150 mOhm typical Rds(on), 42 V load voltage, PG-SOT223-4 package, -40°C to 150°C.","salesMarkdown":"## Low-side switch for 12 V and 24 V loads — what it does The Infineon BSP76E6433HUMA1 is a single-channel, low-side N-channel power switch from the HITFET® family. It switches a grounded load — a relay coil, solenoid, incandescent lamp, or small DC motor — up to 1.4 A continuous from a supply rail rated to 42 V. The switch is controlled by a simple On/Off logic input (non-inverting), and it needs no external Vcc supply: the gate drive is self-powered from the load voltage. Typical Rds(on) is 150 mOhm, which keeps conduction losses manageable at currents up to about 1 A without a heatsink, provided the board has a decent copper pour under the SOT223 tab. ## Fault protection that resets itself This part includes fixed current limiting, over-temperature shutdown, and over-voltage clamping. When a fault trips the switch off, the Auto Restart feature cycles it back on after the fault condition clears — no system reset or watchdog intervention needed. That is useful for driving lamp inrush or motor start surges where a temporary overcurrent is expected, and it saves a firmware recovery routine. ## Temperature range and package — fits automotive and industrial boards The PG-SOT223-4 package (equivalent to TO-261-4) is a standard surface-mount footprint with a large tab for thermal dissipation. On a typical two-layer board, stitching vias from the tab to a ground-plane copper pour is the usual way to keep the junction below 125°C at the full 1.4 A load. ## Sourcing and lifecycle It is ROHS3 compliant and remains a current-production part.","metaTitle":"BSP76E6433HUMA1 HITFET Low-Side Switch, 1.4 A, 150 mOhm","metaDescription":"Infineon BSP76E6433HUMA1 HITFET low-side switch, 1.4 A output, 150 mOhm Rds(on), 42 V load, Auto Restart, PG-SOT223-4.","metaKeywords":null},"attributes":{"series":"HITFET®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"HITFET®","Package":"Tape & Reel (TR); Cut Tape (CT)","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","Voltage - Load":"42V (Max)","lifecycle_stage":"eol_hot","Fault Protection":"Current Limiting (Fixed), Over Temperature, Over Voltage","Number of Outputs":"1","Output Configuration":"Low Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C ~ 150°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":"$1.49","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.49000","currency":"USD"},{"qty":10,"price":"$1.33800","currency":"USD"},{"qty":25,"price":"$1.26240","currency":"USD"},{"qty":100,"price":"$1.07560","currency":"USD"},{"qty":250,"price":"$1.01000","currency":"USD"},{"qty":500,"price":"$0.88376","currency":"USD"},{"qty":1000,"price":"$0.73225","currency":"USD"},{"qty":4000,"price":"$0.68175","currency":"USD"},{"qty":8000,"price":"$0.65650","currency":"USD"},{"qty":12000,"price":"$0.63125","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/494070d2e070e7bbcc4d4ad2889e7ef1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How does BSP76E6433HUMA1 compare to the BTS142DATMA1?","answer":"Both are HITFET low-side switches with the same fault protection set (Auto Restart, current limit, over-temp, over-voltage) and the same 42 V load voltage rating. The BTS142DATMA1 has a much lower typical Rds(on) of 23 mOhm and a higher output current rating of 4.6 A, making it the choice for loads above 1.4 A or where conduction loss must be minimised. The BSP76E6433HUMA1 at 150 mOhm / 1.4 A covers smaller relays, solenoids, and indicator lamps where the lower on-resistance is not needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BSP76E6433HUMA1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BSP76E6433HUMA1 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}}