{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ54A-AQ","brand":"Diotec Semiconductor","brandSlug":"diotec-semiconductor","productSlug":"1.5SMCJ54A-AQ","canonicalUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ54A-AQ","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ54A-AQ","rawCanonicalId":null},"summary":{"shortDescription":"Diotec Semiconductor 1.5SMCJ54A-AQ unidirectional TVS Zener diode, 54V reverse standoff, 1.5kW peak pulse at 10/1000µs, 87.1V clamping, 17.2A peak pulse, -50°C to 150°C junction, DO-214AB SMC strip package, automotive.","salesMarkdown":"## 54V standoff — where this part fits in the automotive protection hierarchy The 1.5SMCJ54A-AQ is an automotive-grade unidirectional TVS (Transient Voltage Suppressor) diode — a Zener-type clamp that sits off-state on a rail and switches into conduction when a transient exceeds the breakdown threshold, protecting downstream circuitry from voltage spikes. 54V reverse standoff places this squarely in the 48V automotive band — the voltage rail that has expanded from mild-hybrid drivetrains into industrial 48V power architectures. It is not a 24V or 12V part dressed up for a higher rating; the standoff is the design rail. Minimum breakdown of 60V gives a comfortable margin above the 54V standoff — the TVS does not turn on during normal operation, only during a defined transient event. ## 1.5kW peak pulse at 10/1000µs — the automotive surge shape This is the surge shape the ECU or module will see in the vehicle environment, not a generic 8/20µs lightning curve. Peak pulse current of 17.2A at the clamping voltage of 87.1V means the clamping action limits what reaches the protected node to under 90V — for a 48V rail that has been stressed above 60V, the downstream MOSFET gate oxide or the CAN transceiver sees a clamped event, not the full open-circuit transient amplitude. Junction temperature range of -50°C to 150°C covers the engine-compartment and chassis-domain thermal band — this is the qualification range for an automotive-qualified part, not a commercial derated number. The module designer uses 150°C as the Tj_max ceiling when running thermal budgets for worst-case ambient. ## DO-214AB SMC — the automotive power-SMD footprint DO-214AB (SMC) is the standard package for 1.5-3kW TVS diodes — the foot pattern is consistent across manufacturers, making this part a candidate for cross-referencing to other automotive-qualified SMC-bodied suppressors from the same voltage family. The strip packaging format is typical for reel-ready automotive production; confirm the reel quantity against your placement line's pitch and feeder capacity.","metaTitle":"1.5SMCJ54A-AQ TVS Diode 54V 1.5kW Automotive SMC","metaDescription":"Diotec 1.5SMCJ54A-AQ unidirectional TVS Zener, 54V standoff, 1.5kW peak pulse 10/1000µs, 87.1V clamp, -50°C to 150°C junction, DO-214AB SMC. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Diotec Semiconductor","Type":"Zener","Series":"-","Package":"Strip","Applications":"Automotive","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Operating Temperature":"-50°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMC/DO-214AB","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"60V","Voltage - Clamping (Max) @ Ipp":"87.1V","Voltage - Reverse Standoff (Typ)":"54V","Current - Peak Pulse (10/1000µs)":"17.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9260","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3fb0502b23c3703cafef426b7b2bf7e5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMCJ54A-AQ/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 1.5SMCJ54A-AQ and how is it quoted for volume purchases?","answer":"Diotec Semiconductor is the primary manufacturer. Quoted to order per BOM quantity; the independent distribution channel carries it against RFQ with lot traceability confirmed at quote time."},{"question":"What is 1.5SMCJ54A-AQ's listed type on this Circuit Protection line?","answer":"It is a Zener-type unidirectional TVS diode — a single-channel transient voltage suppressor in the DO-214AB SMC package, qualified for automotive applications under the AQ suffix."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ54A-AQ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diotec-semiconductor/1.5SMCJ54A-AQ 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}}