{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SI8271BBD-IS","brand":"Skyworks Solutions","brandSlug":"skyworks","productSlug":"SI8271BBD-IS","canonicalUrl":"https://icboms.com/skyworks/SI8271BBD-IS","factsUrl":"https://icboms.com/api/mcp/products/SI8271BBD-IS","rawCanonicalId":null},"summary":{"shortDescription":"Skyworks Solutions Si827x series digital isolator, single-channel gate driver, RF coupling technology, 2500Vrms isolation, 4A peak output, 8-SOIC package, tube.","salesMarkdown":"## 4 A peak drive with 200 kV/µs CMTI The Skyworks Solutions SI8271BBD-IS is a single-channel digital isolator from the Si827x series, purpose-built for driving power switches like MOSFETs and IGBTs. Its headline spec is the 4 A peak output current — enough to charge the gate capacitance of a large IGBT in tens of nanoseconds, which directly determines switching losses in a motor drive or inverter stage. The RF coupling isolation technology delivers 2500 Vrms of galvanic isolation, certified by CQC, CSA, UL, and VDE. That covers the basic insulation requirements for mains-connected power supplies and industrial drives up to the 250 Vrms working voltage class. Common-mode transient immunity (CMTI) is rated at 200 kV/µs minimum — this is the key parameter for surviving the fast voltage slewing at the switching node of a half-bridge. A poor CMTI isolator can latch or corrupt the output when the floating ground jumps several hundred volts in a few nanoseconds; 200 kV/µs gives comfortable margin for SiC and GaN switching edges. ## Propagation delay and pulse fidelity Maximum propagation delay is 75 ns in both directions (tpLH and tpHL), with a pulse-width distortion of just 8 ns max. That means the on and off edges stay within 8 ns of each other — important for dead-time control in a bridge leg where asymmetric delay would shift the effective duty cycle. Rise and fall times are 10.5 ns and 13.3 ns typical respectively. The asymmetric rise/fall is inherent to the output stage, but the 4 A peak sink (low-side) vs 1.8 A peak source (high-side) means the falling edge is faster — the gate discharges quicker than it charges, which helps prevent shoot-through during turn-off. The output supply range spans 4.2 V to 30 V, so the same isolator can drive a 5 V logic-level MOSFET or a 15 V IGBT gate without an external level shifter. ## Package and board-fit note The surface-mount package is compatible with standard reflow profiles — no exotic soldering requirements. Supplied in tube format, so pick-and-place feeders need tube-to-tape conversion or manual loading for low-volume builds.","metaTitle":"Skyworks SI8271BBD-IS Digital Isolator, 4A Peak, 8-SOIC","metaDescription":"Skyworks SI8271BBD-IS single-channel RF coupling isolator, 2500Vrms isolation, 4A peak output, 200kV/µs CMTI. Active production, RoHS3. Sourced to order.","metaKeywords":null},"attributes":{"series":"Si827x","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Series":"Si827x","Package":"Tube","Technology":"RF Coupling","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Approval Agency":"CQC, CSA, UL, VDE","lifecycle_stage":"eol_hot","Number of Channels":"1","Voltage - Isolation":"2500Vrms","Current - Peak Output":"4A","Operating Temperature":"-40°C ~ 125°C","Rise / Fall Time (Typ)":"10.5ns, 13.3ns","Supplier Device Package":"8-SOIC","Voltage - Output Supply":"4.2V ~ 30V","Current - Output High, Low":"1.8A, 4A","Pulse Width Distortion (Max)":"8ns","Propagation Delay tpLH / tpHL (Max)":"75ns, 75ns","Common Mode Transient Immunity (Min)":"200kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.75","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.75000","currency":"USD"},{"qty":10,"price":"$3.36500","currency":"USD"},{"qty":25,"price":"$3.18160","currency":"USD"},{"qty":100,"price":"$2.75730","currency":"USD"},{"qty":250,"price":"$2.61592","currency":"USD"},{"qty":500,"price":"$2.34724","currency":"USD"},{"qty":1000,"price":"$1.97960","currency":"USD"},{"qty":2500,"price":"$1.88062","currency":"USD"},{"qty":5000,"price":"$1.80992","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/e34d268c600f08b08b448c238613347c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source to the SI8271BBD-IS?","answer":"The SI8271GBD-IS is a direct peer in the same Si827x series, sharing the same 4 A peak output, 2500 Vrms isolation, 200 kV/µs CMTI, and 8-SOIC package. The key difference is the SI8271GBD-IS has a 1.8 A output current rating versus the SI8271BBD-IS's 4 A peak — check the gate drive requirement before substituting."},{"question":"What compliance documentation does Skyworks provide for the SI8271BBD-IS?","answer":"The SI8271BBD-IS is RoHS3 compliant and carries agency approvals from CQC, CSA, UL, and VDE. Standard compliance documentation including the RoHS certificate and UL recognition is available through the storefront."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/skyworks/SI8271BBD-IS","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/skyworks/SI8271BBD-IS 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}}