{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SI8641BA-C-IU","brand":"Skyworks Solutions","brandSlug":"skyworks","productSlug":"SI8641BA-C-IU","canonicalUrl":"https://icboms.com/skyworks/SI8641BA-C-IU","factsUrl":"https://icboms.com/api/mcp/products/SI8641BA-C-IU","rawCanonicalId":null},"summary":{"shortDescription":"Skyworks Solutions Si864x series general-purpose digital isolator, SI8641BA-C-IU, 4-channel unidirectional, 150 Mbps data rate, 1000 Vrms isolation, capacitive coupling, 16-SSOP package.","salesMarkdown":"## 150 Mbps capacitive-coupled isolation for industrial signal chains The Skyworks SI8641BA-C-IU is a 4-channel digital isolator from the Si864x family, using capacitive coupling technology to pass data across a galvanic barrier at up to 150 Mbps. That data rate handles SPI clock lines, UART streams, and general-purpose digital isolation without bottlenecking the bus — the 13 ns propagation delay (max) and 2.5 ns rise/fall times keep the signal edges clean enough for the receiver to sample reliably. The channel configuration is 3 forward inputs (Side 1) and 1 reverse input (Side 2), which maps naturally to isolated SPI (SCLK, MOSI, CS forward; MISO reverse) or any three-plus-one signal split. ## 1000 Vrms isolation with 35 kV/µs transient immunity Rated at 1000 Vrms isolation voltage, this isolator suits basic galvanic separation in industrial control, motor-drive interfaces, and isolated sensor front-ends. The 35 kV/µs common-mode transient immunity (CMTI) is the spec that matters when the part sits on a board next to a switching power stage — fast voltage transients from IGBT or SiC switching events couple through parasitic capacitance, and if the CMTI is too low, the output toggles falsely. 35 kV/µs keeps the data valid through those edges. ## Active lifecycle — no obsolescence risk for current BOMs ROHS3 compliant — no restricted-substance exemptions that could trigger a supply gap in EU or global markets. No stock-holding claim — each RFQ is handled individually.","metaTitle":"SI8641BA-C-IU Skyworks Digital Isolator, 150Mbps, 1000Vrms","metaDescription":"Skyworks SI8641BA-C-IU 4-channel digital isolator, 150 Mbps data rate, 1000 Vrms isolation, 35 kV/µs CMTI, -40°C to 125°C, active production, ROHS3.","metaKeywords":null},"attributes":{"series":"Si864x","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Type":"General Purpose","Series":"Si864x","Package":"Tube","Data Rate":"150Mbps","Technology":"Capacitive Coupling","Channel Type":"Unidirectional","Mounting Type":"Surface Mount","Isolated Power":"No","Package / Case":"16-SSOP (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2.5V ~ 5.5V","Number of Channels":"4","Voltage - Isolation":"1000Vrms","Operating Temperature":"-40°C ~ 125°C","Inputs - Side 1/Side 2":"3/1","Rise / Fall Time (Typ)":"2.5ns, 2.5ns","Supplier Device Package":"16-QSOP","Pulse Width Distortion (Max)":"4.5ns","Propagation Delay tpLH / tpHL (Max)":"13ns, 13ns","Common Mode Transient Immunity (Min)":"35kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.59","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.59000","currency":"USD"},{"qty":10,"price":"$3.22100","currency":"USD"},{"qty":25,"price":"$3.04520","currency":"USD"},{"qty":100,"price":"$2.63910","currency":"USD"},{"qty":250,"price":"$2.50380","currency":"USD"},{"qty":500,"price":"$2.24664","currency":"USD"},{"qty":1000,"price":"$1.89476","currency":"USD"},{"qty":2500,"price":"$1.80002","currency":"USD"},{"qty":5000,"price":"$1.73235","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/be2be0cd247effc5bbc93f4ca5c7a629.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the SI8641BA-C-IU's data rate and propagation delay?","answer":"This combination keeps timing margin intact for high-speed SPI and parallel digital interfaces."},{"question":"Will the SI8641BA-C-IU drop into a board designed for the SI8641BA-B-IU?","answer":"Yes — both parts share the same 4-channel unidirectional configuration, 150 Mbps data rate, 16-SSOP package, and pinout. The only difference is the -C variant's 1000 Vrms isolation rating versus the -B variant's 2500 Vrms. If your application requires 2500 Vrms, the -B is the correct fit; otherwise the -C is a drop-in replacement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/skyworks/SI8641BA-C-IU","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/skyworks/SI8641BA-C-IU when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}