{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC68AH","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5SMC68AH","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5SMC68AH","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC68AH","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor Corporation, 1.5SMC series, automotive Zener TVS diode, 1SAP130100R0170 equivalent — 58.1V reverse standoff, 64.6V minimum breakdown, 92V clamping at 17A peak pulse, 1.5 kW peak pulse, DO-214AB SMC surface-mount package, AEC-Q101 qualified, -55°C to 150°C junction, Tape & Reel.","salesMarkdown":"## What the 1.5SMC68AH is and what the ratings mean The 1.5SMC68AH is an AEC-Q101-qualified unidirectional Zener-type TVS diode — it clamps transient voltage spikes on a single polarity rail before they reach downstream circuitry, then returns to high-impedance once the event passes. Operating junction temperature runs to 150 °C, so the part stays inside its rated window even in hot under-hood or outdoor enclosures. ## The standoff and clamping window The reverse standoff of 58.1 V defines the working rail the diode monitors — it sits off-state above that voltage and activates when the line climbs toward the 64.6 V minimum breakdown. This 6.5 V gap between standoff and breakdown is the design margin the circuit needs to run cleanly at nominal rail without the TVS drawing leakage current. The 92 V clamping maximum at 17 A is the peak stress voltage the downstream component sees during a 10/1000 µs surge — choosing a downstream withstand rating above 92 V closes the protection chain. Telecom line cards running 48 V nominal rails commonly use this standoff band for primary protection at the card entry point. One distinction worth flagging: the part is unidirectional, so it protects a single polarity rail only. For bidirectional clamping on an AC signal line or a reversible supply rail, a different TVS topology is required — this part does not provide bidirectional protection even if the clamping voltage rating would superficially fit. ## Automotive grade and thermal environment AEC-Q101 is the automotive stress qualification for discrete semiconductors — it certifies the part has passed humidity, temperature cycling, surge life, and mechanical stress screens at the die and package level. The DO-214AB (SMC) package is the industry-standard high-current TVS outline — the cathode bar at the top of the package is the heat-dissipation path, and board-side copper under the pad directly affects the thermal resistance junction-to-ambient.","metaTitle":"1.5SMC68AH Zener TVS Diode, 58.1V, 92V Clamping, DO-214AB","metaDescription":"Automotive Zener TVS diode, AEC-Q101, 58.1V standoff / 92V clamping, 1500W peak pulse at 10/1000µs. DO-214AB SMC surface mount.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Taiwan Semiconductor Corporation","Type":"Zener","Grade":"Automotive","Series":"1.5SMC","Package":"Tape & Reel (TR)","Applications":"Telecom","Mounting Type":"Surface Mount","Qualification":"AEC-Q101","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMC68","Operating Temperature":"-55°C ~ 150°C (TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMC)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"64.6V","Voltage - Clamping (Max) @ Ipp":"92V","Voltage - Reverse Standoff (Typ)":"58.1V","Current - Peak Pulse (10/1000µs)":"17A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2104","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d601966aa1d93b80a94b19ca68be2135.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC68AH/alternatives.json"},"ai":{"faq":[{"question":"Who manufactures the 1.5SMC68AH and how is it quoted for volume purchases?","answer":"Taiwan Semiconductor Corporation is the manufacturer of record. Quoted to order in Tape & Reel packaging against BOM quantity — availability and current pricing confirmed at RFQ through our independent distribution network."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5SMC68AH","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/taiwan-semiconductor-corporation/1.5SMC68AH 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}}