{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SI8641BB-B-IS1R","brand":"Skyworks Solutions","brandSlug":"skyworks","productSlug":"SI8641BB-B-IS1R","canonicalUrl":"https://icboms.com/skyworks/SI8641BB-B-IS1R","factsUrl":"https://icboms.com/api/mcp/products/SI8641BB-B-IS1R","rawCanonicalId":null},"summary":{"shortDescription":"Skyworks Solutions Si864x series digital isolator, SI8641BB-B-IS1R, 4-channel unidirectional, 150Mbps data rate, 2500Vrms isolation, 16-SOIC package, Tape & Reel.","salesMarkdown":"## Package fit and board integration The SI8641BB-B-IS1R: Surface-mount reflow profile follows the standard JEDEC MSL level for the package; the part ships on Tape & Reel, which means it feeds directly into a pick-and-place line without a tube-handling step. The 2500 Vrms isolation rating is the one-minute withstand test voltage per UL 1577 — it certifies that the capacitive coupling barrier holds off that potential without breakdown. For a 24 VDC industrial bus or a 48 V telecom rail, this provides basic isolation; for mains-referenced circuits (120/230 VAC), you need to check the working voltage (VIORM) in the full datasheet to confirm creepage distance for reinforced isolation. The 35 kV/µs common-mode transient immunity (CMTI) means the output does not glitch when a motor drive or relay coil switches a high dV/dt across the barrier — this is the spec that matters in a VFD or inverter-fed motor circuit where the ground plane jumps several hundred volts in nanoseconds. Propagation delay is 13 ns max in both directions, with a 4.5 ns max pulse-width distortion — the part preserves the duty cycle of a PWM signal or a serial data stream within that skew. At 150 Mbps (75 MHz clock equivalent), the 13 ns delay consumes about one bit period of the timing budget, which is manageable for SPI or UART links but tight for a parallel bus running at the same rate.","metaTitle":"SI8641BB-B-IS1R Skyworks Digital Isolator, 150Mbps, 16-SOIC","metaDescription":"SI8641BB-B-IS1R Skyworks 4-channel digital isolator, 150Mbps, 2500Vrms isolation, 35kV/µs CMTI, -40°C to 125°C. Active production, RoHS3. Quoted to order.","metaKeywords":null},"attributes":{"series":"Si864x","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Type":"General Purpose","Series":"Si864x","Package":"Tape & Reel (TR); Cut Tape (CT)","Data Rate":"150Mbps","Technology":"Capacitive Coupling","Channel Type":"Unidirectional","Mounting Type":"Surface Mount","Isolated Power":"No","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2.5V ~ 5.5V","Number of Channels":"4","Voltage - Isolation":"2500Vrms","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-SOIC","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":"$3.88","stockQuantity":18,"priceTiers":[{"qty":1,"price":"$3.88000","currency":"USD"},{"qty":10,"price":"$3.48600","currency":"USD"},{"qty":25,"price":"$3.29520","currency":"USD"},{"qty":100,"price":"$2.85580","currency":"USD"},{"qty":250,"price":"$2.70932","currency":"USD"},{"qty":500,"price":"$2.43108","currency":"USD"},{"qty":1000,"price":"$2.05030","currency":"USD"},{"qty":2500,"price":"$1.94778","currency":"USD"},{"qty":5000,"price":"$1.87456","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/be2be0cd247effc5bbc93f4ca5c7a629.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Will the SI8641BB-B-IS1R drop into a board designed for the SI8641BB-B-IU without rewiring?","answer":"Yes — both parts share the same Si864x die, the same 4-channel unidirectional architecture with a 3/1 input split, the same 150 Mbps data rate, and the same 16-pin SOIC footprint. The only difference is the shipping package: the -IU variant comes in a tube, while the -IS1R ships on Tape & Reel. No board layout change is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/skyworks/SI8641BB-B-IS1R","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/skyworks/SI8641BB-B-IS1R 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}}