{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ150","brand":"Diotec Semiconductor","brandSlug":"diotec-semiconductor","productSlug":"1.5SMCJ150","canonicalUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ150","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ150","rawCanonicalId":null},"summary":{"shortDescription":"Diotec Semiconductor, unidirectional TVS Zener, 1.5SMCJ150, 150V standoff, 1.5kW peak pulse, 5.6A Ipp, -50°C to +150°C junction, DO-214AB SMC surface mount.","salesMarkdown":"## Clamping chain: standoff through breakdown to clamp The 1.5SMCJ150 clamps at 268 V maximum under a 10/1000 µs surge waveform — that 268 V is the ceiling the downstream circuit never exceeds during a transients event. The reverse standoff sits at 150 V typical, meaning the diode stays invisible on the line under normal operation; it only transitions into avalanche breakdown above 167 V minimum. The window between 167 V and 268 V is where the clamping action lives — a 100 V headroom that absorbs the surge energy and shunts the excess current away from the protected rail. The corresponding peak pulse current of 5.6 A is what the diode must survive for the duration of that pulse. Designing the board trace and bulk decoupling to survive a 5.6 A fault current for 20 ms is a different thermal problem than protecting against a nanosecond ESD event — the 1.5SMCJ150 is built for the slower, higher-energy surge, not the ultra-fast human-body model hit. ## DO-214AB SMC package and surface-mount fit The SMC (DO-214AB) package is the standard medium-current TVS footprint — the cathode bar bridges the two mounting pads and acts as the primary thermal path to the board copper. Solder mask defined pads with a generous thermal land under the cathode tab carry the heat away during the clamping event; under-sizing the copper pour under the tab is the most common reason a TVS fails earlier than the datasheet predicts. The strip packaging option means it arrives on a reel or cut tape ready for standard SMT placement. ## Junction temperature and thermal derating The maximum junction temperature rating of 150 °C sets the upper bound of the thermal SOA — the part must stay below that TJ under continuous clamping duty or during a surge event.","metaTitle":"Diotec 1.5SMCJ150 TVS Zener, 1.5kW 150V","metaDescription":"Diotec 1.5SMCJ150 unidirectional TVS Zener, 150V standoff, 1.5kW peak pulse, DO-214AB SMC. Active — quoted to order against your 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)":"167V","Voltage - Clamping (Max) @ Ipp":"268V","Voltage - Reverse Standoff (Typ)":"150V","Current - Peak Pulse (10/1000µs)":"5.6A"}},"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/1.5SMCJ150/alternatives.json"},"ai":{"faq":[{"question":"How do I source the 1.5SMCJ150 — supplier and lead time?","answer":"The 1.5SMCJ150 is sourced through independent distribution on a quoted-to-order basis. Lead time and availability vary by order quantity and are confirmed at RFQ. No live inventory count is published — submit a quote to receive confirmed pricing and estimated lead time for your order quantity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ150","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diotec-semiconductor/1.5SMCJ150 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}}