{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ33A-AQ","brand":"Diotec Semiconductor","brandSlug":"diotec-semiconductor","productSlug":"1.5SMCJ33A-AQ","canonicalUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ33A-AQ","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ33A-AQ","rawCanonicalId":null},"summary":{"shortDescription":"Diotec Semiconductor Zener unidirectional TVS diode, 1SAP130100R0170-equivalent SMx family, 33V reverse standoff, 53.3V clamping @ 28.1A, 1500W peak pulse (10/1000µs), -50°C~150°C junction, DO-214AB SMC surface-mount.","salesMarkdown":"## What a unidirectional Zener TVS does The 1.5SMCJ33A-AQ is a unidirectional Zener-based transient voltage suppressor — it stays dormant at the reverse-standoff voltage (33 V typical) and clamps the line hard when a surge pushes the junction into avalanche, limiting the voltage the protected node ever sees to the clamping level (53.3 V max @ 28.1 A peak pulse). The 33 V reverse-standoff rating sets the maximum working voltage the circuit runs at continuously — the TVS draws only leakage current here and stays invisible to normal operation. The minimum breakdown of 36.7 V establishes the onset of the avalanche region — this is deliberately above the standoff level so the device does not clip during normal line transients, only during a genuine surge event. ## Automotive temperature grade and deployment The -50°C to 150°C junction-temperature range maps to the automotive engine-compartment and under-hood envelope — this is the thermal headroom the device has between the ambient and the die under a clamping event, where transient self-heating can push the junction well above ambient. The SMC/DO-214AB package with tin-lead finish is the standard automotive PCB footprint for TVS diodes — it reflow-solders in the same profile as MOSFETs and regulator ICs in the same power-supply or ECU section.","metaTitle":"Diotec 1.5SMCJ33A-AQ TVS Diode, 33V standoff, SMC","metaDescription":"1.5SMCJ33A-AQ Zener TVS diode, 33V reverse standoff, 53.3V clamping, 1.5 kW peak pulse, DO-214AB (SMC). Active and 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)":"36.7V","Voltage - Clamping (Max) @ Ipp":"53.3V","Voltage - Reverse Standoff (Typ)":"33V","Current - Peak Pulse (10/1000µs)":"28.1A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9260","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3fb0502b23c3703cafef426b7b2bf7e5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does 1.5SMCJ33A-AQ use?","answer":"The part is a surface-mount SMC/DO-214AB package, supplied on strip — the same footprint used by the majority of unidirectional TVS diodes in this power class."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ33A-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/1.5SMCJ33A-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}}