{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLV4946K","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"TLV4946K","canonicalUrl":"https://icboms.com/infineon/TLV4946K","factsUrl":"https://icboms.com/api/mcp/products/TLV4946K","rawCanonicalId":null},"summary":{"shortDescription":"Infineon TLV4946K unipolar Hall-effect switch, temperature compensated, open-collector output, 2.7 V supply, 13.9 mT operate / 5 mT release, -40°C to 150°C, surface mount.","salesMarkdown":"## What this Hall switch does and where it fits The TLV4946K is a unipolar Hall-effect switch from Infineon, designed for position and proximity sensing in environments that see wide temperature swings — the operating range spans -40°C to 150°C. It switches on when a south-pole magnetic field exceeds 13.9 mT and releases at 5 mT, with an open-collector output that sinks up to 20 mA. Supply voltage down to 2.7 V lets it run directly off a 3.3 V rail without a separate LDO, saving a component on the BOM. ## Magnetic thresholds and temperature compensation The 13.9 mT operate point and 5 mT release give a 8.9 mT hysteresis — wide enough to reject mechanical vibration and magnetic noise in a motor-drive or valve-position application. Temperature compensation is listed as a feature, meaning the switch point stays stable across the -40°C to 150°C range rather than drifting with the magnet's own temperature coefficient. ## Sourcing and lifecycle status the surface-mount footprint suits standard reflow assembly.","metaTitle":"TLV4946K Hall Switch – Infineon, -40°C to 150°C","metaDescription":"Infineon TLV4946K unipolar Hall switch, 2.7 V supply, 13.9 mT operate, open collector output. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Sensors & Transducers"],"specifications":{"feature_list":"Temperature Compensated","package_type":"Bulk","polarization":"South Pole","mounting_type":"Surface Mount","output_signal":"Open Collector","Test Condition":"25°C","product_status":"Active","lifecycle_stage":"eol_hot","timing_function":"Unipolar Switch","supply_voltage_v":"2.7","switching_current_a":"0.006","output_current_max_a":"0.02","sensing_distance_max_mm":"13.9mT Trip, 5mT Release","Operating Temperature High":"-40°C to 150°C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.20","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/632e023ee6a074300d3a09dc6750fdb9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What does the 13.9 mT operate / 5 mT release mean for my magnet selection?","answer":"The 13.9 mT operate point means the Hall switch triggers when the south-pole field strength at the sensor face reaches that level. For a typical N35 neodymium magnet, that corresponds to an air gap of roughly 3–5 mm depending on magnet size. The 5 mT release gives 8.9 mT hysteresis, which prevents chatter from mechanical vibration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/TLV4946K","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/TLV4946K when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:11:09.729Z","lastPublished":"2026-07-17T20:11:09.729Z","indexable":true}}