{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADUM1251WARZ","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADUM1251WARZ","canonicalUrl":"https://icboms.com/analog-devices/ADUM1251WARZ","factsUrl":"https://icboms.com/api/mcp/products/ADUM1251WARZ","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADUM1251WARZ, Automotive I2C digital isolator, 2500Vrms, 1Mbps, 2-channel bidirectional/unidirectional, 3V-5.5V supply, -40°C to 105°C, 8-SOIC package.","salesMarkdown":"## I2C bus isolator for automotive and industrial domains The ADUM1251WARZ is an automotive-grade, 2-channel digital isolator from Analog Devices built around iCoupler magnetic coupling technology, purpose-designed for I2C bus isolation. ## Automotive qualification and temperature range This part carries an Automotive grade (AEC-Q100), with an operating temperature range of -40°C to 105°C. That puts it in the cabin and chassis-domain bracket — suitable for battery-management systems, on-board charger communication, and infotainment bus isolation. The 105°C ceiling is the junction limit; derate for self-heating if the ambient runs near the top end. Lifecycle status is Active, with ROHS3 compliance confirmed. ## Transient immunity and timing margins Common-mode transient immunity is specified at a minimum of 25kV/µs. ## Package and footprint Housed in an 8-SOIC package with a 3.90 mm body width, surface-mount. The supplier device package is 8-SOIC — standard footprint, no surprises for the pick-and-place. No isolated power on board; the part draws its supply from the bus-side rails. The 2/1 input count (side 1 / side 2) matches the I2C topology: one bidirectional channel for data, one unidirectional for clock.","metaTitle":"ADUM1251WARZ I2C Digital Isolator, Automotive, 2500Vrms","metaDescription":"ADUM1251WARZ automotive I2C digital isolator, 2500Vrms isolation, 1Mbps data rate, 2-channel bidirectional/unidirectional, -40°C to 105°C. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Type":"I2C","Grade":"Automotive","Package":"Tube","Data Rate":"1Mbps","Technology":"Magnetic Coupling","Channel Type":"Bidirectional, Unidirectional","Mounting Type":"Surface Mount","Isolated Power":"No","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 5.5V","Number of Channels":"2","Voltage - Isolation":"2500Vrms","Operating Temperature":"-40°C ~ 105°C","Inputs - Side 1/Side 2":"2/1","Rise / Fall Time (Typ)":"26ns, 52ns","Supplier Device Package":"8-SOIC","Pulse Width Distortion (Max)":"145ns, 85ns","Common Mode Transient Immunity (Min)":"25kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.72","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.72000","currency":"USD"},{"qty":10,"price":"$6.97100","currency":"USD"},{"qty":98,"price":"$5.77092","currency":"USD"},{"qty":294,"price":"$5.51156","currency":"USD"},{"qty":588,"price":"$5.02526","currency":"USD"},{"qty":1078,"price":"$4.37684","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/ADUM1250_1251.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is ADUM1251WARZ automotive qualified?","answer":"Yes, the ADUM1251WARZ carries an Automotive grade, meaning it is qualified to AEC-Q100 standards for use in automotive environments. The operating temperature range is -40°C to 105°C, covering cabin and chassis-domain applications."},{"question":"Is ADUM1251WARZ compatible with 5V I2C?","answer":"Yes, the supply voltage range of 3V to 5.5V covers both 3.3V and 5V I2C buses. The part can be powered from either side of the isolation barrier at the appropriate rail voltage."},{"question":"What is the difference between ADUM1251WARZ and ADUM1250ARZ?","answer":"The ADUM1251WARZ is the automotive-grade version of the ADUM1250ARZ. Both are I2C digital isolators with 2500Vrms isolation and 1Mbps data rate. The ADUM1251WARZ is qualified to AEC-Q100 and rated for -40°C to 105°C, while the ADUM1250ARZ is a commercial-grade part with a narrower temperature range. The ADUM1251WARZ also has a 2/1 input count (side 1/side 2) versus the ADUM1250ARZ's 2/2 configuration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADUM1251WARZ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/ADUM1251WARZ when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-12T02:15:20.903Z","lastPublished":"2026-07-12T02:15:20.903Z","indexable":true}}