{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5.0SMDJ30A-Q","brand":"Bourns Inc.","brandSlug":"bourns-inc","productSlug":"5.0SMDJ30A-Q","canonicalUrl":"https://icboms.com/bourns-inc/5.0SMDJ30A-Q","factsUrl":"https://icboms.com/api/mcp/products/5.0SMDJ30A-Q","rawCanonicalId":null},"summary":{"shortDescription":"Bourns Inc. Automotive, AEC-Q101, 5.0SMDJ-Q series, unidirectional Zener TVS diode, 5.0SMDJ30A-Q, 30V standoff, 48.4V clamping @ 103A peak pulse, 5000W peak pulse, surface mount, DO-214AB (SMC).","salesMarkdown":"## What the 5.0SMDJ30A-Q is built for The 5.0SMDJ30A-Q is a unidirectional Zener-based TVS diode from Bourns' 5.0SMDJ-Q series, AEC-Q101 qualified for automotive environments. AEC-Q101 is the automotive discrete semiconductor qualification standard — it covers temperature cycling, humidity bias,ESD robustness, and mechanical stress screening. For an ECU input or power rail that sees load-dump transients, this is the minimum gate. The 30V reverse standoff voltage means the TVS stays invisible to the protected rail during normal operation. When a transient exceeds 30V, the device clamps within its rated clamping ceiling. ## Clamping ceiling and the transient survivability envelope The peak pulse rating of 5000W at 10/1000µs defines the transient waveform the diode survives without degradation. The 10µs rise and 1000µs fall matches the ISO 7637-2 automotive load-dump pulse shape, so this part is sized for real vehicle transients, not lab-only surges. Peak pulse current at that waveform is 103A — above this current the clamping voltage climbs and the diode enters irreversible peak surge damage. Verify the downstream clamping voltage budget against the protected IC absolute-maximum rating. ## Temperature grade and automotive deployment Maximum junction temperature is 150°C with an operating range of -55°C to 150°C — the lower bound covers cold-start conditions, the upper bound accommodates engine-compartment proximity without derating at typical automotive board layouts. This is the temperature band that maps to the under-hood ECU environment, not cabin-grade 85°C parts. An engineer specifying for a chassis-domain module needs the headroom the TJ 150°C provides. Surface-mount termination suits high-volume assembly with reflow. The tape-and-reel and cut-tape options cover both production reel and prototype one-off ordering. No official successor order code appears in the manufacturer's cross-reference data.","metaTitle":"Bourns 5.0SMDJ30A-Q TVS Diode, 30V standoff, 5kW peak pulse","metaDescription":"Bourns 5.0SMDJ30A-Q unidirectional TVS diode, AEC-Q101 qualified for automotive. 30V standoff, 48.4V clamping, 5000W peak pulse at 10/1000µs.","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); Cut Tape (CT)","Applications":"Automotive","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"5000W (5kW)","Base Product Number":"5.0SMDJ","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)":"33.3V","Voltage - Clamping (Max) @ Ipp":"48.4V","Voltage - Reverse Standoff (Typ)":"30V","Current - Peak Pulse (10/1000µs)":"103A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.9700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/01b4635941d863dc2cfd632b255cfd4b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/5.0SMDJ30A-Q/alternatives.json"},"ai":{"faq":[{"question":"What type of device is the 5.0SMDJ30A-Q?","answer":"It is a unidirectional Zener TVS diode — the Zener breakdown mechanism clamps positive transients on the line; it does not protect against reverse-polarity events."},{"question":"What series does the 5.0SMDJ30A-Q belong to, and what does the AEC-Q101 qualification cover?","answer":"It is part of the Bourns 5.0SMDJ-Q series. AEC-Q101 is the automotive qualification standard for discrete semiconductors — it tests temperature cycling, humidity bias,ESD handling, and mechanical robustness to the stress profile of vehicle electrical systems."},{"question":"What compliance documentation does Bourns provide for 5.0SMDJ30A-Q?","answer":"Confirm the full CofA and substance-report status at RFQ with your Bourns representative or authorized channel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/bourns-inc/5.0SMDJ30A-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/5.0SMDJ30A-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}}