{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ58CA-AQ","brand":"Diotec Semiconductor","brandSlug":"diotec-semiconductor","productSlug":"1.5SMCJ58CA-AQ","canonicalUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ58CA-AQ","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ58CA-AQ","rawCanonicalId":null},"summary":{"shortDescription":"Diotec Semiconductor, 1.5SMCJ58CA-AQ, bidirectional TVS Zener, 58V standoff, 64.4V min breakdown, 93.6V clamping, 16A peak pulse, 1500W peak pulse power, -50°C to 150°C junction, DO-214AB SMC, strip, automotive.","salesMarkdown":"## What the clamping voltage means for the downstream IC The 1.5SMCJ58CA-AQ: Working backward from that clamping level to the IC's abs-max input rating is the normal design sequence for any automotive ECU input. The 58 V reverse standoff is the dc working voltage — the diode is reverse-biased and conducts no significant current below it. Above 58 V the device begins to avalanche at 64.4 V minimum, clamping the overvoltage at 93.6 V so long as the transient energy stays within the 1500 W peak pulse rating. The 16 A peak pulse rating at 10/1000 µs defines the waveform class — this is the automotive load-dump pulse shape. A faster-edge event (ESD, 8/20 µs) delivers the same peak current at higher instantaneous power; the clamping voltage will be higher and the device may not survive if the waveform class is mismatched. ## Why the automotive temperature grade matters A design that runs the diode at full pulse rating in a 125 °C ambient still has margin to the 150 °C ceiling, but the thermal resistance from junction to ambient on the DO-214AB package determines whether the repetitive-pulse duty stays within that window. The bidirectional CA variant means both polarities share a single SMC package — polarity one clamps positive transients, polarity two clamps negative. This is the correct topology for protecting floating automotive signal lines where neither side is ground-referenced, or for protecting the drain-to-source path of a MOSFET that sees both polarities during switching.","metaTitle":"1.5SMCJ58CA-AQ TVS Diode, 58V standoff, 1500W peak","metaDescription":"Diotec 1.5SMCJ58CA-AQ bidirectional TVS Zener, 58V standoff / 93.6V clamping @ 16A peak pulse, 1500W, DO-214AB AEC part. Sourced 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)":"64.4V","Voltage - Clamping (Max) @ Ipp":"93.6V","Voltage - Reverse Standoff (Typ)":"58V","Current - Peak Pulse (10/1000µs)":"16A"}},"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/1.5SMCJ58CA-AQ/alternatives.json"},"ai":{"faq":[{"question":"What is 1.5SMCJ58CA-AQ used for?","answer":"It is an automotive TVS Zener diode — the 58 V standoff and 1500 W peak pulse rating suit it for protecting ECU inputs, sensor lines, and power rails against load-dump and reverse-battery transients on the 12 V automotive bus. The bidirectional CA configuration handles both polarities on a single device."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ58CA-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/1.5SMCJ58CA-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}}