{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ20","brand":"Diotec Semiconductor","brandSlug":"diotec-semiconductor","productSlug":"1.5SMCJ20","canonicalUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ20","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ20","rawCanonicalId":null},"summary":{"shortDescription":"Diotec Semiconductor, Zener TVS diode, 1.5SMCJ20, unidirectional 1-channel, 20V reverse standoff, 1500W peak pulse, 35.8V clamping @ 41.9A, DO-214AB SMC surface mount, -50°C to 150°C junction temperature.","salesMarkdown":"## 1.5SMCJ20 — 1500W unidirectional TVS selection brief Rated as a generic type, it protects against ESD, lightning, and inductive load transients rather than dedicated power-line protection. The 20V reverse standoff (typ) sets the working voltage above which the device begins to clamp — the 22.2 V minimum breakdown is the turn-on threshold. At 41.9A peak pulse current the clamping voltage is held to 35.8V max, which defines the protected-side voltage ceiling the downstream circuit sees during a surge event. Surface-mount DO-214AB fits the standard reflow profile and is compatible with standard pick-and-place — the SMC landing pad on the board is the thermal return path for pulse dissipation, not the housing itself.","metaTitle":"1.5SMCJ20 TVS Diode, 20V Standoff, 35.8V Clamping","metaDescription":"1.5SMCJ20 unidirectional TVS diode, 1500W peak pulse, 20V standoff, 35.8V clamping. Active production, quoted to order against BOM.","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":"General Purpose","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)":"22.2V","Voltage - Clamping (Max) @ Ipp":"35.8V","Voltage - Reverse Standoff (Typ)":"20V","Current - Peak Pulse (10/1000µs)":"41.9A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9158","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3fb0502b23c3703cafef426b7b2bf7e5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMCJ20/alternatives.json"},"ai":{"faq":[{"question":"What is 1.5SMCJ20 used for in a circuit?","answer":"It clamps voltage transients on a signal or low-power rail — the 20V standoff and 35.8V clamping ceiling make it suited for protecting 5V or 12V control lines, communication ports, and sensor rails against inductive kickback or ESD events."},{"question":"What is the difference between a TVS diode and a Zener diode for transient protection?","answer":"A TVS diode is a Zener optimised for single-event pulse handling — it clamps at a defined peak current (41.9A for this part) with a guaranteed maximum clamping voltage, whereas a standard Zener is rated for continuous conduction at its breakdown voltage. For transient suppression the clamping spec, not the breakdown voltage alone, is the governing selection parameter."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ20","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diotec-semiconductor/1.5SMCJ20 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}}