{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5.0SMDJ7.0CA","brand":"Bourns Inc.","brandSlug":"bourns-inc","productSlug":"5.0SMDJ7.0CA","canonicalUrl":"https://icboms.com/bourns-inc/5.0SMDJ7.0CA","factsUrl":"https://icboms.com/api/mcp/products/5.0SMDJ7.0CA","rawCanonicalId":null},"summary":{"shortDescription":"Bourns Inc. 5.0SMDJ Zener TVS diode, 5 kW peak pulse, 7 V reverse standoff, 12 V clamping, 416.8 A peak pulse current, -55°C to 150°C, DO-214AB SMC surface mount, Tape & Reel / Cut Tape.","salesMarkdown":"## What the 5.0SMDJ7.0CA is built for The 5.0SMDJ7.0CA is a Zener-based unidirectional TVS diode from Bourns' 5.0SMDJ series — a family of 5000 W peak-pulse-rated surface-mount transient suppressors in the DO-214AB (SMC) package. The CA suffix designates the bidirectional configuration, meaning it clamps both polarities of transient voltage. Designed for telecom line-card protection, it sits on the secondary protection stage — after a coarse gas discharge tube or bulk TVS and before the active semiconductor — catching residual clamping events that make it past the upstream stage. ## Clamping ratio and what the clamping spec means in practice The standoff-to-clamp ratio is roughly 1.7× — 7 V working voltage clamps at 12 V maximum. That ratio is the TVS diode selection trade-off: a tighter standoff gets you closer to the rail (better protection for low-voltage ICs) but demands a diode with a lower breakdown voltage, which conducts more leakage current at the working voltage. For indoor equipment behind building entry protection, a 5 kW device is typically adequate; for CPE directly exposed to the drop or service entrance, a higher-rated part is specified. ## SMC package and board integration The cathode band marks the polarity direction on the unidirectional CA variant; the tape-and-reel quantity and the Cut Tape option affect pick-and-place programming — confirm the package orientation before generating the placement file, especially if the line also runs SMA-bodied parts from the same series. The part is classified as not suitable for power-line protection (confirms this), which means it is not rated for direct AC mains clamping — it is a board-level DC signal or data-line suppressor. For RS-485, CAN, or telecom framer interfaces at 5 V rails, the 7 V standoff and 12 V clamp sit above the signal swing but below the IC absolute-maximum input rating, making it a textbook fit for those interfaces.","metaTitle":"Bourns 5.0SMDJ7.0CA TVS Diode, 7V standoff, 12V clamp","metaDescription":"Bourns 5.0SMDJ7.0CA Zener TVS diode, 5000W peak pulse, 7V standoff / 12V clamping, DO-214AB SMC surface mount, -55°C to 150°C. Active.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Bourns Inc.","Type":"Zener","Series":"5.0SMDJ","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"Telecom","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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMC)","Voltage - Breakdown (Min)":"7.78V","Voltage - Clamping (Max) @ Ipp":"12V","Voltage - Reverse Standoff (Typ)":"7V","Current - Peak Pulse (10/1000µs)":"416.8A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.7400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a0949caf364db4522ac11e1fb5bd355a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/5.0SMDJ7.0CA/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 5.0SMDJ7.0CA and how is it quoted for volume purchases?","answer":"Sourced through independent distribution channels — Bourns does not sell direct for this series. The 5.0SMDJ series is a widely cloned family across multiple manufacturers, which can provide BOM hedge options if second-source qualification is required."},{"question":"What is the 5.0SMDJ7.0CA used for?","answer":"The 5.0SMDJ7.0CA is a telecom-targeted TVS diode for secondary board-level protection on line-card interfaces. With a 7 V standoff and 12 V clamping maximum, it protects low-voltage ICs on RS-485, CAN, and similar interfaces from residual surge events that make it past the primary protection stage."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/bourns-inc/5.0SMDJ7.0CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/bourns-inc/5.0SMDJ7.0CA 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}}