{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ISO7331FCQDWRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ISO7331FCQDWRQ1","canonicalUrl":"https://icboms.com/texas-instruments/ISO7331FCQDWRQ1","factsUrl":"https://icboms.com/api/mcp/products/ISO7331FCQDWRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ISO7331FCQDWRQ1, Automotive AEC-Q100, General Purpose digital isolator, 3 channels unidirectional, 25 Mbps data rate, 3000 Vrms isolation, capacitive coupling, 16-SOIC package, -40 to 125°C.","salesMarkdown":"## What this digital isolator brings to the board The Texas Instruments ISO7331FCQDWRQ1 is a three-channel, unidirectional digital isolator built with capacitive coupling technology, rated for 3000 Vrms isolation and 25 Mbps data rate. ## Three channels, two on one side — why the split matters The channel configuration is 2 inputs on side 1 and 1 input on side 2, which suits designs where the majority of signals cross from the primary domain to the secondary, with a single return path. Propagation delay is 58 ns max in both directions, with pulse-width distortion held to 4 ns max — tight enough for SPI and UART links at moderate clock rates. Rise and fall times are 3 ns and 2 ns typical, keeping edge transitions clean without excessive ringing. ## Automotive temperature range and CMTI Common-mode transient immunity is a minimum 25 kV/µs, meaning fast switching from nearby motor drives or solenoid drivers won't glitch the data stream. No isolated power is provided on-chip — you supply separate isolated rails for each side. ## Lifecycle and sourcing For dual-sourcing or supply resilience, the ISO7221CDR is a two-channel unidirectional isolator with the same 25 Mbps data rate and 25 kV/µs CMTI, though it lacks the third channel and the AEC-Q100 automotive grade.","metaTitle":"ISO7331FCQDWRQ1 Digital Isolator, 3Ch, 25Mbps, 3000Vrms","metaDescription":"Texas Instruments ISO7331FCQDWRQ1 general-purpose digital isolator, 3 channels, 25 Mbps, 3000 Vrms isolation, 16-SOIC, AEC-Q100, -40 to 125°C.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Type":"General Purpose","Series":"Automotive, AEC-Q100","Package":"Tape & Reel (TR); Cut Tape (CT)","Data Rate":"25Mbps","Technology":"Capacitive Coupling","Channel Type":"Unidirectional","Mounting Type":"Surface Mount","Isolated Power":"No","Package / Case":"16-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 5.5V","Number of Channels":"3","Voltage - Isolation":"3000Vrms","Operating Temperature":"-40°C ~ 125°C","Inputs - Side 1/Side 2":"2/1","Rise / Fall Time (Typ)":"3ns, 2ns","Supplier Device Package":"16-SOIC","Pulse Width Distortion (Max)":"4ns","Propagation Delay tpLH / tpHL (Max)":"58ns, 58ns","Common Mode Transient Immunity (Min)":"25kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.97","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.97000","currency":"USD"},{"qty":10,"price":"$4.46800","currency":"USD"},{"qty":25,"price":"$4.22400","currency":"USD"},{"qty":100,"price":"$3.66070","currency":"USD"},{"qty":250,"price":"$3.47292","currency":"USD"},{"qty":500,"price":"$3.11626","currency":"USD"},{"qty":1000,"price":"$2.65650","currency":"USD"},{"qty":2000,"price":"$2.65650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7254ca8f2fbfb0762739ee1d808631a2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the equivalent parts for ISO7331FCQDWRQ1?","answer":"A close functional alternative is the ISO7221CDR, a two-channel unidirectional isolator with the same 25 Mbps data rate and 25 kV/µs CMTI, but it lacks the third channel and the AEC-Q100 automotive qualification. For a three-channel automotive-grade part, the ISO7331FCQDWRQ1 is the direct choice."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ISO7331FCQDWRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ISO7331FCQDWRQ1 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}}