{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC68CA-M3/9AT","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC68CA-M3-9AT","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC68CA-M3-9AT","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC68CA-M3%2F9AT","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, 1.5SMC68CA-M3/9AT, bidirectional Zener TVS, 58.1V standoff, 64.6V min breakdown, 92V clamping, 1.5 kW peak pulse, 16.3A, DO-214AB SMC, surface mount, -65°C to 150°C junction.","salesMarkdown":"## What the 68V clamping triplet means for your rail The 1.5SMC68CA-M3/9AT is a bidirectional Zener-based transient voltage suppressor — the TransZorb® series from Vishay General Semiconductor. Three voltages define its protection window: 58.1 V reverse standoff (the normal working rail the diode ignores), 64.6 V minimum breakdown (where it starts conducting), and 92 V maximum clamping voltage at the rated peak pulse current. For a nominal 48 V rail, the 58.1 V standoff gives about 10 V of headroom — enough to keep the TVS dormant during normal operation while clamping inductive kickback or surge events before they reach the load. At that pulse shape the diode clamps at 92 V maximum while conducting up to 16.3 A peak. Sustained overvoltage above the standoff will push the device into avalanche — the 150 °C maximum junction temperature is the hard ceiling for thermal survival during a fault event, so the board-level thermal design must keep the case temperature below whatever derating the application environment demands. ## DO-214AB SMC footprint and board considerations The SMC (DO-214AB) package is the mid-size SMC J-bend leadform — pin-compatible across most 1.5SMC, 5SMC, and SMB families from multiple manufacturers. The cathode band marking identifies the anode/cathode orientation on the unidirectional variant; this part is bidirectional so orientation is non-critical. The exposed pad on the bottom connects to the cathode electrically and provides the primary thermal path to the board copper — a appropriately sized landing pad and thermal via cluster directly under the pad are required to realise the 1500 W peak rating in practice.","metaTitle":"1.5SMC68CA-M3/9AT TVS Diode, 1500W, 68V","metaDescription":"Vishay 1.5SMC68CA-M3/9AT bidirectional Zener TVS, 58.1V standoff, 92V clamping, 1.5 kW peak pulse, DO-214AB SMC. Active. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Vishay General Semiconductor - Diodes Division","Type":"Zener","Series":"1.5SMC, TransZorb®","Package":"Tape & Reel (TR)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMC68","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMCJ)","Voltage - Breakdown (Min)":"64.6V","Voltage - Clamping (Max) @ Ipp":"92V","Voltage - Reverse Standoff (Typ)":"58.1V","Current - Peak Pulse (10/1000µs)":"16.3A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4447","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC68CA-M3%2F9AT/alternatives.json"},"ai":{"faq":[{"question":"What series does the 1.5SMC68CA-M3/9AT belong to?","answer":"The part is from Vishay's 1.5SMC family of TransZorb® bidirectional Zener TVS diodes. TransZorb® is Vishay's trade name for the Zener-based clamping architecture — the clamping voltage is set by the Zener breakdown characteristics rather than a snapback mechanism."},{"question":"How do I source the 1.5SMC68CA-M3/9AT?","answer":"This listing sources the part to order against an RFQ. Availability, lead time, and current pricing are confirmed when you request a quote — the BOM quantity and required delivery date help us position the right channel inventory."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC68CA-M3-9AT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC68CA-M3-9AT 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}}