{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ43CA-AQ","brand":"Diotec Semiconductor","brandSlug":"diotec-semiconductor","productSlug":"1.5SMCJ43CA-AQ","canonicalUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ43CA-AQ","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ43CA-AQ","rawCanonicalId":null},"summary":{"shortDescription":"Diotec Semiconductor Zener TVS diode, 1.5SMCJ43CA-AQ, bidirectional, 43V standoff, 47.8V min breakdown, 69.4V clamping, 21.6A peak pulse, 1500W peak pulse power, -50°C to 150°C TJ, DO-214AB SMC surface-mount, automotive.","salesMarkdown":"## What the 1.5SMCJ43CA-AQ does The 1.5SMCJ43CA-AQ is a bidirectional Zener-based TVS (transient voltage suppressor) in the DO-214AB (SMC) surface-mount package. Bidirectional means it clamps both polarities of a voltage surge — a spike above the standoff threshold in either direction gets steered away from the protected node and clamped at the datasheet ceiling. ## Voltage ratings and what they govern The reverse standoff voltage of 43 V is the working DC rail the diode watches — it sits off-state across this voltage in normal operation and draws only leakage current. At 21.6 A through the device under surge, the clamping voltage of 69.4 V is the let-through the IC or MOSFET gate sees — sizing the downstream protection to tolerate that ceiling is the first design check. The 1.5 kW peak pulse rating (vs the common 1.2 kW SMC rating) gives additional headroom for the same package footprint, which matters when the surge threat profile is higher than nominal. ## Automotive temperature grade and environment The junction rating is the governing limit; the board-level temperature around the SMC solder pad determines whether the Tj ceiling is approached. Listed under automotive applications and shipped in strip packaging for pick-and-place assembly, the part fits the DO-214AB footprint standard — the same land pattern as any SMC-device migration path if a second source becomes necessary. Diotec Semiconductor lists the 1.5SMCJ43CA-AQ as Active — orderable under the listed part number with availability and lead time confirmed at quote.","metaTitle":"1.5SMCJ43CA-AQ TVS Diode, 1.5kW, 43V, DO-214AB","metaDescription":"Diotec 1.5SMCJ43CA-AQ bidirectional Zener TVS diode, 43V standoff, 1.5kW peak pulse, DO-214AB SMC. Automotive. Active — 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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMC/DO-214AB","Voltage - Breakdown (Min)":"47.8V","Voltage - Clamping (Max) @ Ipp":"69.4V","Voltage - Reverse Standoff (Typ)":"43V","Current - Peak Pulse (10/1000µs)":"21.6A"}},"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/1.5SMCJ43CA-AQ/alternatives.json"},"ai":{"faq":[{"question":"How can I source the 1.5SMCJ43CA-AQ and get a quote?","answer":"Quoted to order through independent distribution against the BOM quantity."},{"question":"What is the 1.5SMCJ43CA-AQ's listed type on this Circuit Protection line?","answer":"It is listed as a Zener type — a unidirectional/bidirectional Zener-based TVS diode in the DO-214AB SMC package."},{"question":"What compliance documentation does Diotec Semiconductor provide for 1.5SMCJ43CA-AQ?","answer":"Confirm the applicable declarations — RoHS and REACH compliance statements — against the Diotec Semiconductor product family datasheet at RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ43CA-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/1.5SMCJ43CA-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}}