{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BU52055GWZ-E2","brand":"ROHM Semiconductor","brandSlug":"rohm","productSlug":"BU52055GWZ-E2","canonicalUrl":"https://icboms.com/rohm/BU52055GWZ-E2","factsUrl":"https://icboms.com/api/mcp/products/BU52055GWZ-E2","rawCanonicalId":null},"summary":{"shortDescription":"ROHM BU52055GWZ-, Omnipolar Hall-Effect Switch, ±5.5mT Trip / ±1.5mT Release, Push-Pull Output, 1.65V–3.6V Supply, 8µA Max Supply Current, UCSP35L1 Package, -40°C to 85°C.","salesMarkdown":"The BU52055GWZ-E2: The BU52055GWZ-: The ROHM BU52055GWZ- is an omnipolar Hall-effect switch that responds to both north and south magnetic poles with a single push-pull output. The output is push-pull, so no external pull-up resistor is needed. Typical applications include lid/cover closure detection in portable electronics, proximity sensing in IoT nodes, and position sensing in consumer appliances where the ambient temperature stays within -40°C to 85°C. The sensing range is specified as ±5.5 mT trip (operate point) and ±1.5 mT release (release point), tested at 25°C. That 4.0 mT hysteresis gives clean, chatter-free switching as the magnet moves past the sensor. For a typical NdFeB magnet, a 5.5 mT operate point allows an air gap of several millimetres — enough for plastic enclosure walls or thin bezels. The ± sign means the switch triggers on either pole, so magnet orientation does not matter; just bring a north or south field above the threshold and the output toggles. ## Package and board integration: UCSP35L1 The BU52055GWZ- comes in a 4-bump UCSP35L1 wafer-level chip-scale package (4-XFBGA / CSPBGA). It is a surface-mount device with a tiny footprint — roughly 1.1 mm × 1.1 mm — suited for space-constrained PCBs in wearables and compact modules. Cut Tape is also available for prototyping or low-volume builds. ## Lifecycle and compliance ROHM lists the BU52055GWZ- as Active with ROHS3 compliance. The ROHS3 status covers the full substance restriction, including the four phthalates — no exemption paperwork needed for EU-market builds.","metaTitle":"ROHM BU52055GWZ-E2 Omnipolar Hall Switch, ±5.5mT Trip","metaDescription":"ROHM BU52055GWZ-E2 omnipolar Hall-effect switch, ±5.5mT trip / ±1.5mT release, push-pull output, 1.65V–3.6V supply, 8µA max, UCSP35L1. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Omnipolar Switch","Technology":"Hall Effect","Output Type":"Push-Pull","Polarization":"North Pole, South Pole","Mounting Type":"Surface Mount","Sensing Range":"±5.5mT Trip, ±1.5mT Release","Package / Case":"4-XFBGA, CSPBGA","Test Condition":"25°C","lifecycle_stage":"eol_hot","Voltage - Supply":"1.65V ~ 3.6V","Operating Temperature":"-40°C ~ 85°C (TA)","Current - Output (Max)":"500µA","Current - Supply (Max)":"8µA","Supplier Device Package":"UCSP35L1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.82","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.82000","currency":"USD"},{"qty":10,"price":"$0.63000","currency":"USD"},{"qty":25,"price":"$0.54280","currency":"USD"},{"qty":50,"price":"$0.52360","currency":"USD"},{"qty":100,"price":"$0.44600","currency":"USD"},{"qty":500,"price":"$0.38784","currency":"USD"},{"qty":1000,"price":"$0.33936","currency":"USD"},{"qty":3000,"price":"$0.32482","currency":"USD"},{"qty":6000,"price":"$0.30058","currency":"USD"},{"qty":9000,"price":"$0.28118","currency":"USD"},{"qty":15000,"price":"$0.27440","currency":"USD"},{"qty":30000,"price":"$0.26664","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/81c490c4afdd1037b8879f8474bd5e5c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the exact sensing range of BU52055GWZ-?","answer":"The operate (trip) point is ±5.5 mT and the release point is ±1.5 mT, measured at 25°C. The 4.0 mT hysteresis provides clean switching without oscillation near the threshold."},{"question":"Is BU52055GWZ- RoHS and lead-free compliant?","answer":"Yes, the BU52055GWZ- is ROHS3 compliant, covering all six original RoHS substances plus the four phthalates. Lead-free construction is standard for this wafer-level CSP."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/rohm/BU52055GWZ-E2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/rohm/BU52055GWZ-E2 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}}