{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TMAG5123D1CQDBZT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TMAG5123D1CQDBZT","canonicalUrl":"https://icboms.com/texas-instruments/TMAG5123D1CQDBZT","factsUrl":"https://icboms.com/api/mcp/products/TMAG5123D1CQDBZT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TMAG5123D1CQDBZT, omnipolar Hall-effect switch, ±13 mT trip, ±6.7 mT release, open-drain output, 2.5 V supply, -40°C to 125°C, surface mount.","salesMarkdown":"## What the ±13 mT trip point means for your design The TMAG5123D1CQDBZT is an omnipolar Hall-effect switch that triggers its open-drain output when the magnetic flux density exceeds ±13 mT (typical) and releases at ±6.7 mT (typical). The 6.3 mT hysteresis prevents output chatter near the threshold — the switch stays latched until the field drops below the release point, which is the standard behaviour for a switch, not a latch. Because it responds to both north and south poles, the sensor does not care about magnet orientation — a bar magnet passing either pole within range will trigger it. This simplifies mechanical alignment in applications like proximity detection, end-of-travel sensing, or lid-closed detection where the magnet's polarity cannot be guaranteed. The open-drain output requires an external pull-up resistor to the logic supply rail. The switching current is 5.4 mA (max), so the pull-up value should be chosen to keep the output voltage within the logic threshold of the downstream receiver when the output is low. ## Temperature range and operating environment This makes it suitable for under-hood, engine-bay, or industrial enclosures where the ambient temperature cycles between cold start and hot soak. This part operates from a 2.5 V rail, which is common in modern low-power microcontrollers and battery-powered designs. Confirm the supply rail in your system stays within the 2.5 V nominal range; the datasheet's absolute-maximum table (page 4) defines the safe operating area. The surface-mount package footprint is a standard small-outline transistor (SOT-23) variant; the exact land pattern is in the datasheet's package drawing. No exposed thermal pad — the package dissipates through the leads and the board copper. The part is an omnipolar switch, not a linear sensor — it outputs a digital high/low, not an analog voltage proportional to field strength. The switching threshold is factory-trimmed; no external calibration is needed. The test condition covers the full temperature range, so the trip points are guaranteed across -40°C to 125°C.","metaTitle":"TI TMAG5123D1CQDBZT Hall Switch, ±13mT, -40°C to 125°C","metaDescription":"Texas Instruments TMAG5123D1CQDBZT omnipolar Hall-effect switch, ±13 mT trip point, open-drain output, -40°C to 125°C. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Sensors & Transducers"],"specifications":{"package_type":"Tape & Reel (TR); Cut Tape (CT)","polarization":"North Pole, South Pole","mounting_type":"Surface Mount","output_signal":"Open Drain","Test Condition":"-40°C to 125°C","product_status":"Active","lifecycle_stage":"eol_hot","timing_function":"Omnipolar Switch","supply_voltage_v":"2.5","switching_current_a":"0.0054","sensing_distance_max_mm":"±13mT Trip, ±6.7mT Release","Operating Temperature High":"-40°C to 125°C(TA)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.68","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/909dc8970b643bb9a1beeebf22a756f6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TMAG5123D1CQDBZT/alternatives.json"},"ai":{"faq":[{"question":"Does the TMAG5123D1CQDBZT detect both north and south poles?","answer":"Yes, it is an omnipolar switch — it triggers on either north or south pole exceeding ±13 mT and releases at ±6.7 mT."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TMAG5123D1CQDBZT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TMAG5123D1CQDBZT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}