{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ45CA-AQ","brand":"Diotec Semiconductor","brandSlug":"diotec-semiconductor","productSlug":"1.5SMCJ45CA-AQ","canonicalUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ45CA-AQ","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ45CA-AQ","rawCanonicalId":null},"summary":{"shortDescription":"Diotec Semiconductor, Zener type, bidirectional single-channel TVS diode, 1SAP130100R0170 equivalent in function, 45V reverse standoff, 72.7V clamping, 20.6A peak pulse (10/1000µs), 1.5kW, -50°C to 150°C TJ, DO-214AB SMC, strip.","salesMarkdown":"## 45V standoff and clamping performance The 1.5SMCJ45CA-AQ: The 45V reverse standoff is the working voltage at which the diode presents a high-impedance off-state — the circuit runs below this without the TVS conducting. That ratio is what tells you whether your downstream IC survives the worst-case spike in a 12V automotive system. The 20.6A peak pulse current is the rating at that waveform; shorter-higher-current transients (8/20µs) would clamp at a lower voltage but consume more of the diode's energy-absorption budget. ## Automotive temperature grade and protection topology Junction temperature rating of 150°C means the die is rated for the upper band of automotive thermal profiles. Bidirectional, single-channel construction means the diode is polarity-agnostic — it clamps both positive and negative transients. This suits floating rails, AC signal lines, or any node where the transient polarity is undefined. If you need unidirectional protection on a known-polarity rail, the standoff voltage still applies but the clamping symmetry does not. ## DO-214AB SMC package and strip packaging The DO-214AB (SMC) package is the standard outline for 1.5kW TVS diodes — the cathode bar marks polarity on unidirectional variants; on this bidirectional part the polarity marking is less critical but the bar still indicates the die position. The supplier device package field confirms the same footprint (SMC/DO-214AB) for pad and paste mask compatibility. Listed as strip packaging — meaning cut-tape per unit, not reel. Confirm your pick-and-place system accepts cut-tape or whether you need a reel-sourced variant from the same manufacturer. The strip format is typical for lower-volume automotive assembly or service-replacement procurement.","metaTitle":"Diotec 1.5SMCJ45CA-AQ TVS Diode, 45V, DO-214AB SMC","metaDescription":"Diotec 1.5SMCJ45CA-AQ bidirectional TVS diode, 45V standoff, 72.7V clamping, 1.5kW peak pulse, DO-214AB SMC, -50°C to 150°C junction, automotive.","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)":"50V","Voltage - Clamping (Max) @ Ipp":"72.7V","Voltage - Reverse Standoff (Typ)":"45V","Current - Peak Pulse (10/1000µs)":"20.6A"}},"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/1.5SMCJ45CA-AQ/alternatives.json"},"ai":{"faq":[{"question":"What type of protection device is the 1.5SMCJ45CA-AQ?","answer":"It is classified as a Zener type in the product listing — this describes the clamping mechanism (Zener breakdown for lower voltages, avalanche for higher). For a 45V standoff, the dominant mechanism is avalanche breakdown. In practice it functions as a bidirectional TVS diode for transient protection on 12V automotive and industrial lines."},{"question":"What package does the 1.5SMCJ45CA-AQ come in?","answer":"The listed package is DO-214AB (SMC) in strip (cut-tape) format — surface-mount, single-unit quantities on tape. Confirm whether your line accepts cut-tape or requires reel packaging before committing BOM quantities."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ45CA-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/1.5SMCJ45CA-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}}