{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5.0SMDJ8.5A-Q","brand":"Bourns Inc.","brandSlug":"bourns-inc","productSlug":"5.0SMDJ8.5A-Q","canonicalUrl":"https://icboms.com/bourns-inc/5.0SMDJ8.5A-Q","factsUrl":"https://icboms.com/api/mcp/products/5.0SMDJ8.5A-Q","rawCanonicalId":null},"summary":{"shortDescription":"Bourns Inc., Automotive AEC-Q101 TVS Zener, 5.0SMDJ8.5A-Q, 8.5V standoff, 14.4V clamping, 347.3A peak pulse, 5000W peak pulse power, unidirectional 1-channel, surface mount, DO-214AB SMC.","salesMarkdown":"## 8.5V standoff — what that means in-circuit The 5.0SMDJ8.5A-Q: In a 5V rail automotive node, this gives plenty of headroom for normal operation while leaving the clamping headroom intact for ISO 7637-2 load-dump events. That 5.9V gap between standoff and clamping is the suppression margin — it is what buys the protected load time to respond. ## 5kW peak pulse — automotive-grade transient handling The 347.3A peak pulse current at that pulse width confirms the diode die can survive the event without going into thermal runaway. If you are building an ECU or BCM, this is the minimum gate. For a powertrain or chassis module, a 150°C TJ at 85°C ambient gives roughly 65°C of margin before derating kicks in. ## DO-214AB SMC — surface-mount automotive package Solder joint integrity on the large cathode tab is the primary failure mode in thermal cycling — a proper drop-in replacement must match the pad footprint or the solder fillet geometry changes under vibration. Tape-and-reel packaging is standard for high-volume automotive assembly lines. If you are kitting for a contract manufacturer, confirm their feeder system accepts the specified reel diameter — some lines require cut-tape for MELF-style placements.","metaTitle":"Bourns 5.0SMDJ8.5A-Q TVS Diode, 8.5V, 5kW","metaDescription":"Bourns 5.0SMDJ8.5A-Q unidirectional TVS diode, AEC-Q101 qualified, 8.5V standoff, 14.4V clamping, 5kW peak pulse, DO-214AB SMC surface mount. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Bourns Inc.","Type":"Zener","Series":"Automotive, AEC-Q101, 5.0SMDJ-Q","Package":"Tape & Reel (TR)","Applications":"Automotive, Telecom","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"5000W (5kW)","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMC)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"9.44V","Voltage - Clamping (Max) @ Ipp":"14.4V","Voltage - Reverse Standoff (Typ)":"8.5V","Current - Peak Pulse (10/1000µs)":"347.3A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9375","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/05eb851c9694252cd9eda3a357f31c9b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/5.0SMDJ8.5A-Q/alternatives.json"},"ai":{"faq":[{"question":"How do I get pricing and lead time for 5.0SMDJ8.5A-Q?","answer":"Bourns carries the part in the 5.0SMDJ-Q series family, and independent distribution also supports spot and volume orders."},{"question":"What does AEC-Q101 qualification mean for this TVS diode?","answer":"AEC-Q101 is the automotive discrete semiconductor stress qualification standard — it certifies the part has passed temperature cycling, humidity bias, surge life testing, and mechanical shock at the grades required for ECU and BCM deployments."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/bourns-inc/5.0SMDJ8.5A-Q","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/bourns-inc/5.0SMDJ8.5A-Q when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}