{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ8.5A","brand":"Diotec Semiconductor","brandSlug":"diotec-semiconductor","productSlug":"1.5SMCJ8.5A","canonicalUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ8.5A","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ8.5A","rawCanonicalId":null},"summary":{"shortDescription":"Diotec Semiconductor, Zener TVS diode, 1.5SMCJ8.5A, unidirectional, 8.5V standoff, 9.4V breakdown, 14.4V clamping, 1.5 kW peak pulse, 104.2A peak pulse current, DO-214AB SMC package, Surface Mount, Strip.","salesMarkdown":"## What 1.5SMCJ8.5A is and what the voltage window means The 1.5SMCJ8.5A is a unidirectional Zener-type TVS (transient voltage suppressor) in the DO-214AB (SMC) surface-mount package. It protects a sensitive rail by clamping above its standoff voltage — the 8.5 V typ reverse standoff rating is the working voltage the line normally sits at, and any spike that drives the line above the 9.4 V minimum breakdown threshold causes the device to avalanche and clamp the peak at 14.4 V max at the peak pulse current. That 8.5 V → 14.4 V window is what defines the protection headroom for the downstream circuitry. The corresponding 104.2 A peak pulse current tells you the short-circuit fault current the TVS must survive during the clamp event; the clamping voltage of 14.4 V at that current is the Let-through voltage the load sees. ## DO-214AB package and board-level swap check The SMC (DO-214AB) package is the standard 2-pin J-lead footprint — it is one of the most widely second-sourced TVS packages in the industry. The strip packaging variant here means it ships as a cut-tape or loose piece, not a full reel, which is the common format for service stock and field-kit replenishment. Polarity is cathode bar / anode notch per the standard SMC orientation, and the board pad pattern matches the JEDEC DO-214AB land pattern. ## Junction thermal headroom and environment Maximum junction temperature is 150 °C with a rated operating range from -50 °C to 150 °C (junction). In a sealed enclosure that runs warm, or in a point-of-load protection role downstream of a switching converter, the 150 °C ceiling gives reasonable headroom above typical panel ambient — but the clamping energy dissipation during a surge event can push the junction locally higher, so thermal pad mounting and board copper area matter for repeated transient duty.","metaTitle":"Diotec 1.5SMCJ8.5A TVS Diode, 8.5V Standoff, 1.5 kW","metaDescription":"Unidirectional Zener TVS diode, 8.5V standoff / 9.4V breakdown / 14.4V clamping, 1.5 kW peak pulse. Active production. Sourced to order on RFQ.","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)":"9.4V","Voltage - Clamping (Max) @ Ipp":"14.4V","Voltage - Reverse Standoff (Typ)":"8.5V","Current - Peak Pulse (10/1000µs)":"104.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8068","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3fb0502b23c3703cafef426b7b2bf7e5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMCJ8.5A/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ8.5A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diotec-semiconductor/1.5SMCJ8.5A 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}}